Daily earthquake history

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 22 23 37 0 1898 38.600 142.000 60 8.3 Off East Coast Honshu

11 slow moving small tsunami waves were generated by this earthquake off Sanriki.

4 22 21 56 52 1991 9.960 -83.050 8 8.1 Costa Rica

47 people were killed, 109 injured. 7430 were homeless and extensive damage occurred in the Limon-Pandora area. Intensity X was observed in some areas of liquefaction within the epicentral areas. Damage included landslides blocking roads. 28 people were killed, 454 injured and an additional 2400 homeless and 866 buildings destroyed in the Guabito-Almirante-Bocas del Toro area. Slight damage throughout Central America from Colombia to El Salvador. Maximum uplift was about 1.4 meters near Limon and sandblows and liquefaction caused subsidence of soils in the Bocas del Toro area. Ground cracks were also observed. A 2- meter tsunami started with a recession of the sea of 500 m from the shoreline. During the wave recession people went to the beach to catch trapped fish.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

The following events of Mw>=5 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 22 16 4 2 1921 44.000 -17.000 33 5.6 No. Mid-Atlantic Ridge

4 22 4 15 49 1938 49.700 -129.700 0 5.5 Vancouver Island area

4 22 9 45 48 1945 31.500 -114.000 0 5.3 Gulf of California

4 22 16 55 0 1952 46.200 -111.400 0 5.0 Yellowstone/Wyoming

Western Montana. Maximum intensity reported near Townsend and Toston. Plaster fell, several bricks fell from a chimney.

4 22 17 21 54 1956 53.800 -161.500 0 6.5 Unimak Islands, Aleutians

4 22 10 55 5 1959 53.800 -166.900 51 6.1 Fox Islands, Aleutians

4 22 20 29 19 1964 58.400 -150.430 33 5.1 Southern Alaska

4 22 23 27 20 1966 57.400 -152.300 26 5.9 Southern Alaska

4 22 19 40 29 1971 60.096 -152.986 110 5.1 Central Alaska

4 22 6 22 32 1977 44.230 -129.379 15 5.0 Off Coast of Oregon

4 22 19 28 19 1980 46.203 -122.182 0 5.0 Washington state, U.S.

4 22 17 21 18 1986 72.176 -130.468 10 5.0 Yukon Territory, Canada

4 22 16 6 48 1987 50.545 -172.511 33 5.0 Andreanoff Islands, Aleutians

4 22 0 51 10 1989 51.064 -178.549 33 5.0 Andreanoff Islands, Aleutians

4 22 12 45 49 1993 56.000 -157.000 0 5.3 Alaska Peninsula

4 22 22 2 13 1997 58.000 -167.000 0 5.1 Fox Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 21 11 30 0 1916 32.500 141.800 60 7.1 Off East Coast Honshu

4 21 13 56 22 1916 36.500 70.500 220 7.1 Hindu Kush/Pakistan

4 21 0 49 49 1917 37.000 70.500 220 7.0 Hindu Kush/Pakistan

4 21 4 29 4 1939 47.500 139.800 520 7.0 So. Kurils

4 21 20 22 2 1948 19.250 -69.250 40 7.3 Puerto Rico

First shock was moderate, second, third and last were also moderate. All four shocks were felt throughout the island.

4 21 21 12 30 1957 6.960 -72.200 33 7.1 Colombia

150 houses destroyed at Tachiro, 20 houses at Arboledas, felt at Caracas, Venezuela

4 21 4 24 10 1977 -9.965 160.731 33 8.1 No. of Santa Cruz Islands

4 21 0 30 11 1995 11.925 125.564 17 7.2 Luzon, Philippines

Some damage occurred at Borongan and Sulat. Felt from Davao, Mindanao to

Cebu. It triggered a 20 cm tsunami.

4 21 12 2 26 1997 -12.584 166.676 59 7.9 Vanuatu Islands

4 21 12 6 34 1997 -12.881 166.464 33 7.9 Vanuatu Islands

Earthquake caused significant damage to the islands of Hiu, Tegua and Lo. Torre Islands and Ureparapara in the Bank islands of Vanuatu. It was followed by a tsunami that washed away seven houses and destroyed three others. No injuries or fatalities although the tsunamis was registered at 7 to 15 meters above the concrete buildings.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 21 17 43 0 1892 38.600 -121.900 0 6.5 Central California

At Winters, CA. Although the total energy expended was probably less, the intensity was as great as that on April 19. The shock was most severe at Winters, about 12 miles north of Vacaville. Many buildings which withstood the previous shock were leveled to the ground. On Main Street, not a building was left which could be occupied. The buildings were constructed mostly of brick or stone. At Esparto every brick chimney was toppled. Damage was reported from Vacaville, to Fresno and as far east as Reno NV.

4 21 22 32 25 1918 33.750 -117.000 0 6.8 So. California

At Riverside County, San Jacinto and Hemet suffered heavy damage. Only one new concrete and one frame building were left standing in the business district of San Jacinto. The buildings wrecked were of brick or artificial stone and old. Well constructed buildings were not heavily damaged. Property loss in the two places was estimated at $200,000. The shock occurred on Sunday afternoon, as loss of life was minimized. Numerous cracks were found in the road between the two towns. Concrete irrigation canals were broken in a number of places.

Damage also occurred at Redlands, Riverside and San Bernardino, and as far away as Los Angeles. Roads in the epicentral area were closed to traffic by slides, and one automobile was swept off the road by a slid. Great clouds of dust arose from the mountains and water flow and spring changes were commonplace. Sand and mud craters were formed. In the region of the San Jacinto Fault southeast of Hemet the dry earth surface was broken up as though be a plow.

4 21 21 26 42 1961 51.700 -173.900 36 5.6 Andreanoff Islands, Aleutians

4 21 5 1 36 1964 61.500 -147.300 38 5.4 Central Alaska

4 21 6 42 16 1971 53.850 -161.518 21 5.4 Unimak Islands, Aleutians

4 21 1 28 8 1972 53.947 -166.819 91 5.8 Fox Islands, Aleutians

4 21 15 4 54 1985 55.880 -154.940 33 5.0 Southern Alaska

4 21 15 25 16 1985 55.770 -155.030 33 5.6 Alaska Peninsula

4 21 15 25 37 1985 58.400 -150.900 33 5.3 Southern Alaska

4 21 17 41 57 1993 52.330 -170.120 33 5.0 Andreanoff Islands, Aleutians

4 21 20 36 34 1993 51.410 -175.580 33 5.1 Andreanoff Islands, Aleutians

4 21 16 55 27 1994 52.500 -172.700 33 5.0 Andreanoff Islands, Aleutians

4 21 15 50 3 1996 51.200 -178.500 28 5.1 Andreanoff Islands, Aleutians

4 21 4 35 18 2000 51.422 -178.137 33 6.2 Andreanoff Islands, Aleutians

4 21 17 18 57 2001 42.925 -111.395 1 5.4 Yellowstone/Wyoming

Felt in much of eastern Idaho, including Idaho Falls, Pocatello, Soda Springs and Sugar City areas. Felt in part os western Wyoming including Afton, Auburn and Jackson. Felt as far as the Air Traffic Control Tower at Salt Lake City, Utah.

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 20 22 22 0 1910 -20.000 -177.000 330 7.0 Tonga Islands

4 20 22 1 54 1935 24.350 120.820 10 7.1 Taiwan

Highly destructive quake - the Hsinchun-Taichung earthquake, 3276 people killed, 12,053 injured, 17,907 houses destroyed, 11.405 partially destroyed. 25, 376 damaged. The faulting was observed and landsliding occurred throughout the region.

4 20 3 29 7 1949 -38.000 -73.500 70 7.3 Central Chile

Destructive at Angol and Traiguen. 57 killed.

4 20 23 42 50 1977 -9.900 160.300 19 7.5 No. of Santa Cruz Islands

4 20 23 49 13 1977 -9.844 160.822 33 7.6 No. of Santa Cruz Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date in history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 20 18 15 0 1864 46.900 -71.200 0 5.0 New England

4 20 13 55 0 1891 37.106 -113.574 0 5.0 Nevada area

4 20 19 54 31 1931 43.470 -73.790 5 5.0 New York State

Lake George, N.Y., An earthquake centering near Lake George threw down chimneys at Warrensburg and twisted a church spire. It knocked store goods from shelves at Lake George, damaged chimneys and broke windows at Luzerne and cracked walls and broke dishes at Glen Falls. The shock was felt widely, but less intensely in the Catskills. A phenomena often noted is that intensity in the Catskills of such earthquakes is considerably less than elsewhere.

4 20 5 36 10 1945 39.750 -121.650 0 5.0 Central California

Felt over an area of approximately 500 square miles in north-central California, from Hamilton City to Los Plumas. Maximum intensity VI. Water pipes broken at Paradise.

4 20 11 56 38 1964 61.510 -147.200 6 5.9 Central Alaska

4 20 15 40 28 1964 61.500 -147.300 29 5.0 Central Alaska

4 20 16 18 28 1964 60.770 -145.300 23 5.2 Central Alaska

4 20 8 22 21 1974 52.974 -167.375 42 5.9 Fox Islands, Aleutians

4 20 7 59 54 1976 53.534 -165.465 46 5.5 Fox Islands, Aleutians

4 20 12 49 5 1979 60.325 -140.903 5 5.3 Central Alaska

4 20 19 19 33 1980 46.211 -122.179 1 5.1 Washington state, U.S.

Volcanic tremor - Mt. St. Helens

4 20 16 8 41 1994 52.900 -166.800 33 5.0 Fox Islands, Aleutians

4 20 10 29 14 2001 56.170 -157.811 60 5.1 Alaska Peninsula

4 20 10 50 47 2002 44.513 -73.699 11 5.3 New York State

Roads, bridges, chimneys and water mains were damaged in Clinton and Essex Counties. Building in the area showed cracks in walls and foundations. Many items fell from shelves. Maximum intensity of VII. Felt from New Brunswick and Maine to Ohio, Michigan, Ontario, Quebec and Maryland.

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 19 2 23 0 1902 14.000 -91.000 25 7.5 Guatemala

4 19 2 23 30 1902 14.000 -91.000 60 8.3 Guatemala

2000 killed at Quetzaltenango and San Marcos, and Amatitlan, Guatemala. Felt from Tabasco, Jalisco, Guerrero, Chiapas, Oaxaca, Hidalgo and Mexico City, Mexico. Destroyed the city of Quetzaltenango. Extensive loss of life. Activity continued until September 23 when an earthquake was strongly felt and an eruption of the Volcano Santa Maria began.

4 19 0 0 0 1903 39.100 42.400 0 7.0 Turkey

1700 killed, severe damage. Intensity IX.

4 19 7 58 48 1908 42.000 134.000 480 7.3 Sea of Japan

4 19 3 9 8 1923 2.500 117.500 60 7.0 Malaysia

The shock was strongly felt at Tarakan about 140 km north of the center and followed by a number of aftershocks. Brick buildings collapsed, cracks developed in the ground and streams were affected. The kitchen of a house seemed to be displaced over a distance of about 1 meter to the west. Structures on solid ground suffered little damage.

4 19 15 23 22 1935 31.500 15.200 33 7.1 Mediterranean/Sicily

4 19 5 7 17 1936 -7.500 156.000 40 7.4 Solomon Islands

4 19 13 3 58 1945 -21.000 169.500 40 7.0 Loyalty Islands

4 19 20 24 5 1955 -30.000 -72.000 0 7.0 Coast Central Chile

1 killed. Extensive damage from tsunami at La Serena and Tongoy.

4 19 22 19 26 1957 52.000 -166.500 0 7.3 Fox Islands, Aleutians

4 19 7 35 15 1963 36.000 97.400 0 7.0 So. China

4 19 0 19 36 1996 -23.000 -70.000 0 7.1 Coast No. Chile

Felt (VI) at Calama, V at Antofagasts, Tocopilla and Taltal.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 19 10 50 0 1892 38.500 -122.000 0 6.8 Central California

At Vacaville, Ca. nearly all brick structures were wrecked and many frame buildings were damaged. Chimneys were twisted or thrown down. In Dixon, damage was less serious, but many structures, especially schoolhouses were seversly damaged. At Winters, damage was similar to that in Vacaville and the loss was about the same. Damage at Vacaville, Dixon, and Winters was estimated at about $225,000. Damage also occurred in many other areas. Fissures were found in the bed of Putah Creek half a mile west of Winters and in the adjoining roadway and fields. Shock was felt from Healdsburg to Fresno and east to western Nevada.

4 19 0 30 0 1906 33.000 -115.000 0 6.0 Imperial Valley, California

A strong far-field aftershock of the great San Francisco earthquake. Chimneys fell. Banks of New River caved in; water tanks were destroyed at Cocopah in Baja, Cal. Nearly destroyed the Van Ness and Marlour buildings in Brawley. Not on brick or adobe building in Brawley was left undamaged. Slight damage was also reported at Calexico to Imperial. Felt north to Los Angeles and to Yuma AZ.

4 19 22 47 39 1953 50.000 -179.500 33 5.5 Andreanoff Islands, Aleutians

4 19 15 44 53 1957 51.500 -168.500 0 6.7 Fox Islands, Aleutians

4 19 22 19 26 1957 52.000 -166.500 0 7.3 Fox Islands, Aleutians

4 19 6 43 29 1959 66.500 -142.500 0 5.0 Northern Alaska

4 19 15 3 26 1959 58.000 -152.500 0 6.2 Southern Alaska

4 19 19 26 16 1969 60.360 -145.980 9 5.1 Central Alaska

4 19 1 15 47 1970 59.600 -142.720 20 5.6 Southeast Alaska

4 19 0 26 1 1975 58.699 -154.193 100 5.0 Southern Alaska

4 19 1 49 2 1978 60.059 -153.487 191 5.2 Central Alaska

4 19 19 12 49 1983 63.363 -149.925 114 5.1 Central Alaska

4 19 22 4 47 1988 54.800 -160.100 0 5.7 Unimak Islands, Aleutians

4 19 22 5 4 1988 56.700 -153.900 33 5.3 Southern Alaska

4 19 15 35 17 1991 43.160 -127.650 10 5.4 Off Coast of Oregon

4 19 18 19 22 1991 59.910 -153.180 136 5.0 Southern Alaska

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 18 0 0 0 1352 35.600 105.300 0 7.0 So. China

Most damage was done in Kansu and Shensi. At Chuanglang, Tinghsi in Liangchou Fu. At Kansu many houses were destroyed, a mountain was moved and a valley was filled up.

4 18 0 0 0 1902 14.000 -91.000 0 7.5 Guatemala

4 18 13 12 0 1906 37.670 -122.480 0 8.3 Central California

The Great San Francisco earthquake of 1906 was felt over 1 million square km. 700 were killed and many more were injured. The zone of damage extended from Eureka to Salinas.

Although the earthquake did some damage to buildings in general, by far the worst damage occurred, as in 1868 to construction on made land and along the bay shore. The fire that followed the earthquake caused most of the destruction. As in other great earthquakes, the water system was destroyed and the fire raged for 3 days before a favorable change of wind and concentration of efforts along parks and wide street confined it. Dynamiting of structures did not appear to be very successful. The Fire Chief had been killed by a fallen wall at th time of the earthquake. The problems of caring for the dispossessed and re-establishing city life and services was great, about half a million people temporarily left the city.

The concentration of shaking was quite complicated. The highest values were aligned along the San Andreas, but areas of higher intensity along the Berkeley Hills and in the San Joaquin Valley near Los Banos suggest movement on other faults as well. Sympathetic movement probably took place along the Hayward, and faults in the San Joaquin valley. Dextral strike slip movement took place on the San Andreas fault from San Juan Bautista to at least Punta Arenas. Another fault trace was found to extend to Petrolia. The largest displacement was in Marin County on the Point Reyes Peninsula where displacement of up to 7 meters were observed in soft alluvium and up to 5 meters on solid ground.

Vertical displacements of up to half a meter were noted in many places. These tended to be small and disappear with the passage of time. Similar effects have been noted in other large earthquakes (notably in Chile in 1835 and 1960).

Aftershocks continued for more than a year. A far-field aftershock on the same day as the San Francisco quake but in Brawley was felt over all of the Imperial Valley and into San Diego.

As a result of the California earthquake of 1906, the Seismological Society of America was formed and the elastic rebound theory of earthquakes was enunciated by Ried (1910). If it were not for this earthquake the true nature of the San Andreas Fault might not yet be recognized.

4 18 23 52 26 1907 13.500 123.000 60 7.2 Luzon, Philippines

These earthquakes were felt in the greater part of Luzon, Philippines. through an area of 800 km in diameter. Two violent earthquakes occurred in slightly less than an hour. Damage to buildings was done by the second as they had been weakened by the first. The customs house in Manila was badly damaged along with many other building in Manila.

4 18 4 1 48 1916 53.300 -170.000 170 7.5 Fox Islands, Aleutians

4 18 19 22 46 1928 42.000 24.700 33 7.0 Bulgaria

An MMI X earthquake hit Chirpan, Bulgaria.

4 18 6 22 45 1939 -27.000 -70.500 100 7.4 Coast Central Chile

4 18 21 34 49 1949 -15.500 -173.500 100 7.0 Tonga Islands

4 18 13 39 19 1990 1.186 122.857 26 7.4 Celebes Sea

At least 3 people killed and 25 people injured. More than 1140 houses were damaged in the Balaan area. Felt strongly throughout the Minahassa area. Followed by a possibly p-wave triggered shock of Ml 5.4 in Central California which did extensive damage in the Santa Cruz-Watsonville area.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

4 18 12 0 0 1872 36.000 -118.000 0 5.0 California/Nevada area

Very severe shock at Inyo County.

4 18 13 12 0 1906 37.670 -122.480 0 8.3 Central California

The Great San Francisco earthquake of 1906 was felt over 1 million square km. 700 were killed and many more were injured. The zone of damage extended from Eureka to Salinas.

Aftershocks continued for more than a year. A far-field aftershock on the same day as the San Francisco quake but in Brawley was felt over all of the Imperial Valley and into San Diego.

4 18 4 1 48 1916 53.250 -170.000 170 7.5 Fox Islands, Aleutians

4 18 3 55 0 1931 48.700 -122.200 0 5.0 Washington state, U.S.

At Bellingham, Washington. At Acme, a few bricks fell; at Saxon

a severe twisting motion was observed. Intensity V also was

assigned to Bellingham and other towns in the area. Felt slightly

at Vancouver and Victoria, British Colombia.

4 18 22 15 28 1935 70.500 -73.000 0 5.6 Baffin/Davis Strait, Canada

4 18 11 0 22 1956 51.800 -177.700 33 6.5 Andreanoff Islands, Aleutians

4 18 1 32 18 1964 56.400 -152.800 20 5.0 Southern Alaska

4 18 7 47 0 1964 57.360 -149.950 10 5.0 Southern Alaska

4 18 20 16 16 1964 56.100 -153.700 30 5.9 Southern Alaska

4 18 23 38 3 1964 59.300 -147.500 10 5.1 Southern Alaska

4 18 6 33 58 1965 41.440 -127.310 17 5.4 Off Coast of No. California

4 18 8 50 40 1970 59.900 -152.800 94 5.7 Southern Alaska

4 18 10 32 46 1976 59.797 -153.283 156 5.4 Southern Alaska

4 18 13 21 7 1979 51.393 -170.652 47 5.0 Andreanoff Islands, Aleutians

4 18 21 16 2 1980 46.208 -122.183 0 5.0 Washington state, U.S.

Volcanic Activity at Mt. St. Helens

4 18 6 55 46 1984 52.046 -169.753 33 5.0 Fox Islands, Aleutians

4 18 19 31 31 1984 60.706 -151.840 81 5.1 Central Alaska

4 18 2 1 41 1987 61.820 -151.200 77 5.9 Central Alaska

4 18 2 41 53 1989 51.700 -168.600 0 5.1 Fox Islands, Aleutians

4 18 13 41 39 1990 36.918 -121.670 6 5.0 Central California

4 18 15 46 4 1990 36.932 -121.695 9 5.2 Central California

Slight damage in the Santa Aptos-Watsonville-San Juan area. This was the strongest aftershock of the Loma Prieta earthquake.

4 18 15 5 58 1999 60.387 -151.852 73 5.3 Central Alaska

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 17 11 22 5 1919 -29.500 -178.000 60 7.0 No. Kermadec Islands

4 17 20 53 3 1919 14.500 -91.750 0 7.0 Guatemala

Note the close connection in time between these two events suggesting a possible triggering relationship from the Kermadec Islands to Guatemala.

4 17 3 26 0 1928 17.800 -97.100 100 7.7 Oaxaca, Mexico

Moderate damage in Oaxaca, Mexico

4 17 16 11 0 1948 33.283 135.617 60 7.2 Central/So. Honshu Japan

This event occurred off the southern coast of Honshu and despite its high magnitude was not reported to have caused much material damage in Japan.

4 17 18 35 27 1955 51.700 160.200 60 7.4 E. of Kamchatka

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 17 14 50 0 1892 47.000 -123.000 0 5.0 Washington state, U.S.

Near Olympia, Washington. A shock whose epicenter is uncertain but probably near Olympia was felt sharply at Portland OR to Tacoma, WA. At Portland people rushed into the street when buildings shifted.

4 17 20 10 37 1954 51.500 -179.000 0 6.8 Andreanoff Islands, Aleutians

4 17 13 24 56 1957 51.000 -167.500 0 5.5 Fox Islands, Aleutians

4 17 4 49 29 1964 56.430 -152.880 14 5.5 Southern Alaska

4 17 9 9 7 1964 57.680 -151.430 13 5.4 Southern Alaska

4 17 16 46 47 1966 54.100 -133.600 0 5.0 British Colombia

4 17 14 38 57 1972 44.561 -129.544 33 5.0 Off Coast No. California

4 17 17 43 22 1980 46.213 -122.186 0 5.0 Washington state, U.S.

Volcanic Activity at Mt. St. Helens

4 17 15 59 5 1981 52.479 -173.529 33 5.0 Andreanoff Islands, Aleutians

4 17 21 54 3 2001 51.239 -179.780 33 6.0 Andreanoff Islands, Aleutians

4 17 23 25 30 2001 51.285 -179.827 33 5.6 Andreanoff Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

No strongly damaging earthquakes have been recorded on April 16.

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 16 13 40 0 1899 40.500 -125.500 0 7.0 Off Coast of No. California

4 16 19 52 35 1925 22.000 121.000 60 7.1 Taiwan

4 16 3 1 37 1937 -21.500 -177.000 400 8.1 Tonga Islands

4 16 6 7 43 1940 52.000 173.500 25 7.1 Rat Islands

4 16 6 43 7 1940 52.000 173.500 25 7.2 Rat Islands

4 16 19 52 56 1951 31.000 137.000 500 7.0 Central/So. Honshu Japan

4 16 4 4 0 1957 -4.600 107.100 546 7.5 So. of Java

4 16 1 29 16 1963 -0.900 128.200 6 7.0 Ceram area

4 16 0 30 55 1996 -24.061 -177.036 111 7.1 Tonga Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 16 8 2 0 1895 48.000 -123.000 0 5.0 Washington state, U.S.

Many persons were frightened at Ft. Townsend, Washington.

4 16 13 40 0 1899 40.500 -125.500 0 7.0 Off Coast of No. California

4 16 14 30 40 1930 49.730 -129.330 0 5.5 Vancouver Island area

4 16 5 2 39 1961 39.340 -111.660 0 5.0 Utah area

Felt in Central Utah in central Sanpete County. Several towns reported plaster cracked and damaged chimneys.

4 16 3 19 35 1964 57.200 -151.400 10 5.0 Southern Alaska

4 16 13 43 9 1964 52.090 -169.470 34 5.1 Fox Islands, Aleutians

4 16 19 26 57 1964 56.410 -152.900 25 6.6 Southern Alaska

4 16 20 12 37 1964 56.600 -152.800 33 5.0 Southern Alaska

4 16 21 25 46 1964 58.900 -148.800 33 5.2 Southern Alaska

4 16 8 1 46 1965 66.700 -135.600 33 5.0 Northern Alaska

4 16 23 22 19 1965 64.700 -160.100 5 5.9 Northern Alaska

4 16 1 27 15 1966 57.000 -153.600 33 5.7 Southern Alaska

4 16 5 33 18 1970 59.840 -142.430 7 6.8 Southeast Alaska

4 16 14 48 3 1973 51.123 -178.829 54 5.5 Andreanoff Islands, Aleutians

4 16 4 9 25 1993 56.670 -155.300 44 6.1 Alaska Peninsula

4 16 8 37 32 1994 52.400 -176.900 138 5.1 Andreanoff Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 15 6 8 0 1907 16.700 -99.200 0 8.2 Oaxaca, Mexico

Severe damage near San Marcos, Guerrero, Mexico.

4 15 22 15 13 1934 7.800 127.000 60 7.3 Halmahera

4 15 19 9 51 1941 18.850 -102.940 0 7.9 Michoacan, Mexico

Felt strongly in Colima, Michoacan and Jalisco, Mexico.

4 15 2 35 22 1945 57.000 164.000 20 7.0 Komandorsky Isl

4 15 3 40 52 1955 39.900 74.700 60 7.0 Hindu Kush/Pakistan

Following Taiwan/Ryukyu events and followed by large destructive earthquakes in Sinkiang, Greece and Chile in the next 4 days. Felt at Rawalpindi, Pakistan.

4 15 6 19 44 1979 42.096 19.209 10 7.3 Adriatic Sea

At least 121 people were reported killed in this earthquake. More than 1,000 injured and 100,000 homeless. Damage along the entire southwestern coast of Yugoslavia. A local tsunami was reported at Kotor Bay causing minor damage. Deaths also in Albania. Felt over much of Europe.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

4 15 7 7 0 1898 39.200 -123.800 0 6.9 Central California

This earthquake in Mendocino County caused landslides and fallen trees making roads impassable. Wooden houses were wrecked at Greenwood. Chimney toppled at Mendocino and grave markers were turned. Much damage occurred at Point Arena including the cracking of the lighthouse and the snuffing of the light. Strong aftershock sequence.

4 15 0 0 0 1908 38.393 -113.007 0 5.0 Nevada area

4 15 12 9 0 1934 38.000 -115.000 0 5.0 Nevada area

4 15 10 38 37 1957 51.500 -179.000 0 5.8 Andreanoff Islands, Aleutians

4 15 21 33 5 1957 51.000 -166.500 0 6.4 Fox Islands, Aleutians

4 15 8 23 28 1964 57.410 -149.560 15 5.0 Southern Alaska

4 15 15 30 47 1964 56.500 -154.400 13 5.5 Southern Alaska

4 15 20 8 32 1965 34.100 -117.500 15 5.5 So. California

Felt in San Bernardino, Riverside, Los Angeles, and Orange Counties. Reported broken windows, cracked plaster was worst damage.

4 15 20 55 49 1967 51.450 -179.080 60 5.0 Andreanoff Islands, Aleutians

4 15 2 29 35 1974 64.100 -173.900 15 5.0 Northern Alaska

4 15 7 50 19 1980 51.523 -175.802 35 5.0 Andreanoff Islands, Aleutians

4 15 17 54 54 1980 46.213 -122.181 0 5.0 Washington state, U.S.

Volcanic activity at Mt. St. Helens

4 15 16 21 10 1982 54.241 -161.652 21 5.4 Unimak Islands, Aleutians

4 15 21 52 9 1982 38.035 -118.502 20 5.1 California/Nevada area

Felt (V) at Lee Vining and Bishop, CA

4 15 4 7 41 1985 54.400 -156.700 0 5.4 Alaska Peninsula

4 15 13 29 46 1991 53.030 -164.620 33 5.0 Unimak Islands, Aleutians

4 15 5 35 3 1992 50.410 -175.930 33 5.9 Andreanoff Islands, Aleutians

4 15 23 41 27 1993 51.000 -178.100 33 5.0 Andreanoff Islands, Aleutians

4 15 12 29 20 1996 43.662 -127.503 10 5.4 Off Coast of Oregon

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 14 15 0 0 1700 33.090 129.060 0 7.0 Kyushu, Japan area

4 14 19 53 42 1909 24.000 123.000 80 7.3 Taiwan

This earthquake was followed the next day by a Ms 6.5 in Yunnan China which killed 19 persons. FFA?

4 14 16 20 23 1924 6.500 126.500 60 8.3 Mindanao, Philippines

This is called the Mati earthquake because this town on the Pacific Coast was the nearest to and suffered its most disastrous effects. It was one of the greatest submarine disturbances originating in the West Pacific. There was massive destruction in towns to 8N. Interior partitions were most affected. Fissures and ground slides abounded in the hills and rockfalls were plentiful. Subsidence also occurred in alluvial soils. A tsunami flooded low coastal area but did little damage.

4 14 6 23 34 1927 -32.000 -69.500 110 7.1 Central Chile

4 14 7 15 37 1947 43.600 148.400 60 7.3 Hokkaido, Japan

4 14 0 45 29 1951 -23.300 -66.400 223 7.0 Argentina

4 14 1 28 54 1955 30.400 102.400 0 7.2 So. China

Killed 39 and did moderate damage in Sichuan, China.

4 14 19 18 0 1957 -15.000 -173.250 0 8.0 Samoa Islands

No destruction despite the magnitude because it hit in a relatively unpopulated area.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

4 14 3 20 0 1886 37.200 -117.700 0 5.0 California/Nevada area

This local earthquake broke many dishes in Lida Valley. A dull thunderous noise preceded the shock.

4 14 21 26 32 1934 41.500 -112.500 0 5.6 Montana/Idaho

4 14 11 3 48 1950 48.000 -122.500 0 5.0 Washington state, U.S.

Near Langley, Washington. May persons awakened in Coupeville. Plaster cracked and fell.

4 14 20 39 1 1957 51.100 -178.800 33 6.0 Andreanoff Islands, Aleutians

4 14 7 20 28 1959 57.900 -155.000 67 6.0 Southern Alaska

4 14 0 37 52 1960 48.500 -130.400 0 5.7 Vancouver Island area

4 14 7 53 15 1962 40.270 -125.320 0 5.4 Off Coast of No. California

4 14 15 55 8 1964 61.430 -147.120 5 5.4 Central Alaska

4 14 16 59 33 1964 61.490 -150.440 56 5.1 Central Alaska

4 14 22 55 31 1964 58.000 -152.600 30 5.4 Southern Alaska

4 14 7 35 39 1965 56.300 -153.500 27 5.0 Southern Alaska

4 14 15 43 11 1974 64.200 -174.000 15 5.6 Northern Alaska

4 14 13 49 4 1980 46.203 -122.197 1 5.2 Washington state, U.S.

Volcanic activity at Mt. St. Helens prior to explosive eruption.

4 14 16 0 42 1981 52.170 -169.400 37 5.2 Fox Islands, Aleutians

4 14 14 23 8 1987 53.700 -169.700 0 5.1 Fox Islands, Aleutians

4 14 5 33 26 1990 48.845 -122.161 12 5.0 Washington state, U.S.

Slight damage (VI) in the Deming area. Felt (V) at Acme and (IV ) at Bellingham to Mt. Vernon.

4 14 5 58 32 1993 51.160 -169.010 34 6.0 Fox Islands, Aleutians

4 14 0 32 58 1995 30.290 -103.450 21 5.7 SW U.S.A

Two people slightly injured in Brewster County, Texas. Slight damage at Alpine and Fort Davis. Also slight damage in Marathon and Ozona area. Felt in much of western and central Texas as far east as San Antonio and the Dallas-Fort Worth area. Felt west as far as Sierra Blanca, Texas and north to Roswell, New Mexico.

4 14 2 20 13 2001 56.080 -119.810 10 5.4 Alberta

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 13 0 0 0 1677 38.700 144.000 0 8.1 So. of Honshu

Strong earthquake on Sanriki, Tsugaru, and Nambo, Japan. The earthquake was accompanied by a tsunami which attacked Otsuchi, Miyako and Kuwagasa with height of about 5-6 meters at Miyako Bay. Houses were washed away and people and animals drowned. 3 big waves were observed. Hachinohe was damaged by the earthquake.

4 13 19 17 0 1906 23.600 120.400 10 7.1 Taiwan

A moderate earthquake in Kagi and Ensuiko, Taiwan killed 14-15 persons and resulted in moderate regional damage. This is known as the Tinian earthquake. 84 were wounded 1794 houses destroyed, 2116 partially destroyed and 7921 damaged. Fissures and surface faulting were observed.

4 13 17 57 18 1907 36.500 70.500 260 7.0 Hindu Kush/Pakistan

4 13 15 30 57 1923 55.400 162.800 20 7.3 E. of Kamchatka

4 13 2 42 48 1938 39.367 15.167 291 7.0 Mediterranean/Sicily

4 13 19 55 43 1949 47.100 -122.750 54 7.1 Washington state, U.S.

This earthquake was felt at a MMI VIII for the large area of about 90 miles about the epicenter which was located between Tacoma and Olympia, Washington. Eight deaths were the result of the earthquake. There was damage of more than $23 million and many injuries occurred. Churches, schools and libraries were condemned. The eight capitol buildings at Olympia were damaged at a cost of repair of about $2 million. Elsewhere there was heavy property damage caused by falling walls, chimneys and parapets.

Public utilities were interrupted when gas mains broke and water pipes were cracked or broken. Telegraph services were also interrupted. Railroad services were suspended for several days as railroad bridges south of Tacoma were thrown out of line.

A large portion of a sandy spit in Puget Sound disappeared. Near Tacoma a huge landslide involving a half-section of a 360 foot cliff toppled into Puget Sound.

4 13 16 34 39 1961 39.250 77.750 0 7.6 Northern India

Little information on the effects of this event are available.

4 13 18 4 32 1980 -23.466 -177.297 79 7.2 Tonga Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

4 13 13 0 0 1668 47.100 -70.500 0 5.0 Quebec, Canada

4 13 19 55 43 1949 47.300 -122.500 60 7.0 Washington State

See description of this event above.

4 13 3 44 0 1957 48.400 -128.500 33 5.8 Vancouver Island area

4 13 9 7 24 1958 65.820 -155.650 0 6.8 Northern Alaska

4 13 15 38 52 1963 38.217 -119.433 0 5.1 California/Nevada area

4 13 12 25 38 1964 59.570 -143.100 24 5.0 Southeast Alaska

4 13 14 4 59 1964 57.510 -151.300 21 5.4 Southern Alaska

4 13 16 14 6 1964 56.570 -152.140 33 5.1 Southern Alaska

4 13 21 25 33 1964 57.500 -153.900 16 5.5 Southern Alaska

4 13 21 43 16 1964 59.400 -143.100 22 5.1 Southeast Alaska

4 13 23 22 57 1965 54.200 -163.400 36 5.0 Unimak Islands, Aleutians

4 13 21 17 32 1970 61.800 -163.400 0 5.0 Central Alaska

4 13 19 32 50 1975 63.391 -149.773 109 5.0 Central Alaska

4 13 18 20 43 1977 51.699 -179.613 46 5.1 Andreanoff Islands, Aleutians

4 13 2 8 30 1980 54.847 -160.305 38 5.4 Unimak Islands, Aleutians

4 13 16 46 1 1985 54.600 -163.700 0 5.3 Unimak Islands, Aleutians

4 13 0 2 48 1988 57.238 -143.250 10 5.6 Southeast Alaska

4 13 17 16 1 1992 51.650 -173.620 62 5.1 Andreanoff Islands, Aleutians

4 13 20 4 16 1999 53.716 -163.159 33 5.1 Unimak Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 12 0 22 13 1910 25.500 122.500 200 8.3 Ryukyu Islands

No damage was reported due to this great earthquake.

4 12 8 32 28 1926 -10.000 161.000 60 7.5 No. of Santa Cruz Islands

4 12 0 52 45 1962 38.200 142.500 50 7.5 Off East Coast Honshu

4 12 4 1 44 1970 15.100 122.100 24 7.2 Luzon, Philippines

An aftershock of the strong tremor on April 7 which shook Luzon. This event was North of Polilio Island. Maximum felt intensity V.

4 12 23 19 56 1988 -17.192 -72.305 33 7.0 So. Peru/Bolivia

Felt at Arequipa. Also felt in the Ica area and at Arica, Chile.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

4 12 4 5 0 1885 36.500 -121.000 0 6.2 Central California

This event was strong at Martinez, Santa Rosa, Healdsburg and may have originated on the San Andreas. In the thinly settled region east of King City, Monterey county, although the actual location is uncertain. Chimneys were thrown down at Las Tablas north west of San Luis Obispo. Slight damage was done to buildings at Salinas and Monterey.

4 12 4 17 52 1957 51.500 -178.500 0 5.0 Andreanoff Islands, Aleutians

4 12 22 37 11 1958 48.000 -120.000 0 5.0 Washington state, U.S.

This earthquake was centered in north-central Washington state near the town of Pateros. Cracked plaster and broken dishes constituted most of the damage. There were rockslides near Chelan. Loud subterranean noises accompanied the earthquake. An aftershock had about the same effects.

4 12 1 24 31 1964 56.600 -152.200 22 6.5 Southern Alaska

4 12 9 34 44 1964 56.600 -152.100 20 5.1 Southern Alaska

4 12 12 36 23 1964 56.400 -151.400 30 5.0 Southern Alaska

4 12 12 48 2 1964 56.600 -151.300 33 5.1 Southern Alaska

4 12 14 35 39 1964 61.200 -151.100 28 5.0 Central Alaska

4 12 17 22 2 1964 60.200 -145.600 16 5.0 Central Alaska

Strong aftershocks of the great Alaska earthquake of March 28, 1964. No additional damage was reported with these events.

4 12 3 59 40 1965 56.600 -152.700 33 5.3 Southern Alaska

4 12 4 36 12 1965 52.700 -167.400 16 5.1 Fox Islands, Aleutians

4 12 4 43 10 1965 52.700 -167.500 22 5.3 Fox Islands, Aleutians

4 12 2 10 36 1970 51.510 -178.510 42 5.2 Andreanoff Islands, Aleutians

4 12 4 41 51 1976 52.405 -170.189 38 5.2 Andreanoff Islands, Aleutians

4 12 3 42 4 1978 56.423 -152.691 14 6.6 Southern Alaska

In the Kodiak Island region. Intensity V at Sitkinak Island.

4 12 3 48 55 1978 56.678 -153.568 19 5.2 Southern Alaska

4 12 5 22 29 1978 56.460 -152.548 22 5.0 Southern Alaska

4 12 9 12 1 1978 57.240 -152.040 33 5.0 Southern Alaska

4 12 9 33 38 1978 56.576 -152.841 27 5.1 Southern Alaska

4 12 14 23 59 1984 60.471 -141.229 15 5.0 Central Alaska

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 11 15 0 0 1819 -27.350 -70.350 0 8.3 Coast Central Chile

Additional severe damage occurred in Copiapo following three other damaging event in the month of April 1819. The whole city had been destroyed by the shocks of April 3 and 11. The inhabitants barely had time to escape. There are no estimates of deaths in this event.

4 11 10 42 2 1925 -34.000 59.000 60 7.0 So. Indian Ocean

4 11 1 52 20 1946 -1.000 -14.500 60 7.2 No. of Ascension Isl

4 11 23 11 33 1958 47.800 152.640 140 7.4 So. Kurils

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

4 11 19 0 0 1872 37.500 -118.500 0 6.9 California/Nevada area

Felt strongly at Round Valley, Inyo Country, CA. this shock knocked down stone buildings and frame structures were twisted. This was probably an aftershock of the Owen's Valley earthquake of March 26, 1872.

4 11 7 57 0 1910 33.670 -117.320 0 5.0 So. California

4 11 19 0 0 1917 40.000 -118.000 0 5.1 Montana/Idaho

No confirmation for either of these two events could be found.

4 11 11 22 57 1945 42.000 -126.000 0 5.0 Off Coast of Oregon

4 11 7 47 7 1947 34.966 -116.550 16 5.0 So. California

Aftershock of event of April 10 same area.

4 11 17 41 15 1957 52.000 -168.500 0 5.2 Fox Islands, Aleutians

4 11 11 36 0 1964 60.370 -146.440 15 5.0 Central Alaska

4 11 23 0 24 1966 56.600 -152.100 33 5.4 Southern Alaska

4 11 4 5 43 1970 59.720 -142.490 7 6.2 Southeast Alaska

4 11 5 12 19 1973 64.890 -159.490 0 6.0 Northern Alaska

4 11 5 12 55 1978 53.535 -163.731 33 5.6 Unimak Islands, Aleutians

4 11 1 45 4 1980 49.260 -127.910 10 5.0 Vancouver Island area

4 11 23 51 60 1980 46.208 -122.168 0 5.0 Washington state, U.S.

Part of Mt. St. Helens eruptive phase earthquakes.

4 11 17 22 21 1986 54.164 -167.883 33 6.0 Fox Islands, Aleutians

4 11 16 22 10 1987 53.389 -167.243 37 5.0 Fox Islands, Aleutians

4 11 13 3 38 1991 53.980 -163.900 29 5.7 Unimak Islands, Aleutians

4 11 6 0 55 1993 51.130 -178.420 35 5.8 Andreanoff Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 10 0 0 0 1739 -0.200 -78.000 0 7.1 Ecuador

4 10 21 22 25 1906 19.000 -113.800 60 7.5 Gulf of California

This generally unrecognized earthquake in the Gulf of California was one of the largest ever recorded in that region and occurred only 8 days before the great San Francisco Earthquake.

4 10 19 36 0 1909 52.000 175.000 0 7.0 Rat Islands

4 10 18 42 24 1911 9.000 -74.000 100 7.2 Colombia

4 10 2 3 56 1918 43.500 130.900 550 7.5 NE China

4 10 13 16 10 1956 -1.000 102.000 0 7.0 So. of Sumatera

4 10 11 29 58 1957 55.750 -153.500 0 7.0 Southern Alaska

4 10 2 6 53 1972 28.434 52.829 33 7.1 So. Iran/Persian Gulf

Qir completely destroyed. 5054 were killed and thousands injured. The damaged region extended over 1,000 sq. km. It was felt widely in southern Iran.

More than 20 villages were reduced to rubble and over 30,000 were left homeless. Gaping cracks and considerable ground failure accompanied this shallow earthquake. There was also a report of a volcano near Ghir which was shaken into eruption. The tremor was felt over 500 square miles. Hardest hit were farming villages where mudbrick construction is especially vulnerable to earthquake damage. In Ghir more than a third of the total population was missing and presumed dead. Not a wall stood there. Aftershocks continued for days adding to damage and misery. Most of the victims trapped in the crumbling houses were women and children.

Among the horror there were a few miracles. Some persons were buried up to 36 hours before being rescued alive.

4 10 1 42 22 1979 2.963 126.933 37 7.2 Mindanao, Philippines

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

4 10 10 0 0 1881 37.300 -121.300 0 6.0 Central California

In the Modesto region, chimneys were damaged. The shock was felt from Greenville, Plumas County, on the north to Visalia on the south and west to the coast.

4 10 13 40 16 1921 54.000 -134.000 0 6.5 British Colombia

An earthquake was felt at Masset on the Queen Charlotte Islands. Pictures swung on walls, but no damage was reported.

4 10 15 58 0 1947 35.000 -116.600 0 6.4 So. California

4 10 17 18 22 1947 34.900 -116.500 0 5.0 So. California

This earthquake, east of Barstow caused huge dust clouds in the mountains where many rocks were displaced. The banks of the Mohave River were cracked and the water level raised slightly. School buildings and Adobe buildings were damaged considerably. Railroad repairs from subsidence and rockslides needed to be repaired. Chimneys were thrown down, plaster, pools and adobe walls were cracked. Tanks on some farms fell as did a stack of 3,000 concrete blocks.

4 10 3 25 30 1957 53.000 -168.000 0 5.2 Fox Islands, Aleutians

4 10 9 9 22 1957 50.500 -176.900 20 6.2 Andreanoff Islands, Aleutians

4 10 11 30 0 1957 55.960 -153.860 0 7.1 Kodiak I. Alaska

4 10 14 30 48 1962 44.150 -73.050 24 5.0 Vermont

Felt over a large area of Vermont, Maine, Massachusetts, New Hampshire and New York. At Montpelier, a beam dislodged from the state house; braces dropped about 5 inches. Twenty windowpanes cracked; Plaster cracked. Tile fell from a ceiling at Barre along with wall cracks.

4 10 1 8 1 1964 58.380 -150.600 19 5.5 Southern Alaska

4 10 19 5 54 1964 59.850 -147.730 15 5.3 Southern Alaska

4 10 21 44 7 1964 60.100 -153.700 15 5.6 Central Alaska

4 10 21 44 12 1964 60.150 -153.510 45 5.6 Central Alaska

4 10 22 27 3 1966 41.370 -125.400 33 5.1 Off Coast of No. California

4 10 19 0 33 1967 39.950 -104.930 5 5.0 Colorado area

One of many earthquakes in the induced swarm near Derby/Commerce City, Colorado. This event cracked plaster, broke windows, and caused merchandise to fall in stores. At the Rocky Mountain Arsenal, where water was pumped into the ground triggering these earthquakes, 118 windowpanes were broken. An asphalt parking lot in the Derby area cracked.

4 10 19 57 35 1967 58.542 -154.233 84 5.6 Southern Alaska

4 10 0 36 44 1971 52.150 -169.944 48 5.0 Fox Islands, Aleutians

4 10 0 3 59 1990 53.500 -158.200 0 5.4 Alaska Peninsula

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 9 0 0 0 1931 38.300 31.900 33 7.0 Turkey

4 9 8 48 59 1943 19.000 146.000 170 7.0 No. Marianas

4 9 1 56 0 1985 -34.000 -71.500 61 7.5 Central Chile

One person died in a heart attach, several people injured and some damage in the Santiago-Valparaiso area. One additional person died from a heart attack at Chillan. Felt from Mendoza, Argentina through Chile to Santa Fe Provinces in Argentina.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 9 20 52 0 1917 38.100 -90.200 0 5.0 Eastern Missouri

This earthquake in eastern Missouri was felt from Kansas to Ohio and Wisconsin to Mississippi, an area of about 500X900 miles. The epicentral zone between St. Louis and New Madrid saw cracked windows and broken plaster. At Granite City the one injury was suffered by a painter who was thrown to the ground. Ground swayed at Ironton, MO.

4 9 17 8 30 1941 31.000 -114.000 0 6.0 SW of Yuma, AZ

4 9 12 44 37 1944 49.900 -67.400 0 5.4 New Brunswick

Felt about 20 miles NNW of Riviere Pentecote, Quebec.

4 9 16 29 28 1952 35.520 -97.850 10 5.5 Oklahoma

At El Reno, Oklahoma, chimneys fell, buildings cracked and windows shattered. Minor damage also was reported in Oklahoma City and Ponca City. Felt area included all of Oklahoma, except for the panhandle section, eastern Kansas, southeastern Nebraska, south-central Texas and western sections of Iowa, Missouri, and Arkansas.

4 9 11 2 12 1957 51.270 -178.560 0 6.0 Andreanoff Islands, Aleutians

4 9 20 23 50 1957 52.500 -169.000 0 5.5 Fox Islands, Aleutians

4 9 6 15 10 1958 55.500 -139.000 0 5.2 Southeast Alaska

4 9 7 23 16 1961 36.680 -121.300 0 5.6 Central California

This shock, felt about 13 miles south of Hollister was on the San Andreas Fault. More than half of all city buildings suffered some type of damage at Hollister, but the major damage occurred in three buildings - the W.A. Taylor Winery was severely damaged. A 50-foot-long fissure was observed on Cienega Road about 3 miles from the winery. A number of chimneys were damaged, so fell. Damage was estimated at $250,000. No deaths or injuries reported.

4 9 13 6 15 1964 59.600 -146.100 15 5.1 Southern Alaska

4 9 17 33 45 1965 59.600 -144.900 52 5.1 Southeast Alaska

4 9 20 8 35 1966 56.400 -152.300 14 5.4 Southern Alaska

4 9 20 17 44 1966 56.600 -152.100 25 5.0 Southern Alaska

4 9 2 28 59 1968 33.100 -116.100 20 6.1 So. California

4 9 3 3 54 1968 33.100 -116.033 5 5.2 So. California

Known as the Borrego Springs earthquake, this event was felt over a large area of California, Arizona and Nevada. Minor cracking was observed on the Coyote Creek Fault and on Highway 78 next to Ocotillo Wells. A number of minor ground ruptures appear to have been triggered on adjacent faults at Superstition Hills,

and the Banning-Mission portion of the San Andreas. Large boulders fell at several points in the Anza-Borrego State Park.

At Ocotillo Wells, a room was separated from a house, cracking walls and spilling up to 3600 gallons of water. Transformers shifted at an electrical sub-station near Ocotillo Wells shearing bolts and bracing. 10 miles to the west a pipeline cracked and water became dark. Ground cracking, building damage and power disruptions occurred throughout the Imperial Valley. A 200-ft-long (2 inch wide) crack developed in a road 6 miles west of Imperial.

4 9 7 51 6 1987 54.100 -169.500 0 5.4 Fox Islands, Aleutians

4 9 22 59 57 1987 53.060 -168.780 41 5.3 Fox Islands, Aleutians

4 9 5 7 42 1989 50.680 -179.096 20 5.2 Andreanoff Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 8 15 0 0 1858 36.040 137.020 0 7.0 No. Honshu, Japan

203 were killed and there was moderate damage at Hida, Japan.

4 8 15 40 24 1942 13.500 121.000 60 7.9 Luzon, Philippines

Five violent tremors occurred around midnight. Fifteen others followed. Building were slightly damaged in Manila where electrical lines snapped. Fires broke out at 2:40 due to grounded wire connections. The first tremor was so violent that the seismograph needle at the Weather Bureau in Manila jumped off the sheet. Cracks were sustained in a number of buildings.

4 8 2 40 27 1976 40.311 63.773 33 7.1 Uzbekistan

Damage (VII) in Gazli-Bukhara area. Felt at Ashkhabad and Samarkand.

4 8 13 10 36 1999 43.649 130.460 580 7.1 NE China

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

No damaging earthquakes have been recorded in the U.S. or Canada

on April 8.

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 8 0 14 15 1958 65.400 -154.900 0 5.7 Northern Alaska

4 8 19 33 19 1964 59.600 -147.000 15 5.1 Southern Alaska

4 8 19 50 17 1964 60.380 -145.940 10 5.3 Central Alaska

4 8 22 10 57 1966 56.500 -152.500 33 5.6 Southern Alaska

4 8 19 51 31 1970 56.219 -156.591 23 5.0 Alaska Peninsula

4 8 6 24 14 1972 42.646 -126.320 11 5.6 Off Coast of Oregon

4 8 20 32 25 1975 51.899 -166.207 33 5.4 Fox Islands, Aleutians

4 8 19 29 3 1980 46.210 -122.196 0 5.1 Washington state,

4 8 13 1 23 1988 51.948 -173.271 54 5.0 Andreanoff Islands, Aleutians

4 8 1 22 19 1989 57.320 -143.460 3 5.2 Southeast Alaska

4 8 15 14 21 1997 52.000 -171.400 33 5.3 Andreanoff Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 7 23 29 17 1941 17.750 -78.500 0 7.1 Jamaica

4 7 15 30 40 1958 66.030 -156.590 0 7.3 Northern Alaska

4 7 5 34 6 1970 15.761 121.717 37 7.5 Luzon, Philippines

A strong earthquake shock the whole of Luzon and Northern Visayas. Damage was done to schools in Manila. Buildings in Central Manila suffered slight damage. Manila International Airport suffered cracked walls and broken Windows. 14 were killed and hundreds injured. The deaths all resulted from the mainshock. Dozens of injuries, however resulted from the most sever aftershock on April 12. Considerable damage occurred to buildings on Alluvial ground in Manila. Severe damage was done to roads and bridges in the epicentral areas. Estimated cost to injured coconut trees - $2 million. The earthquake was characterized by "short rapid jerks, zigzags rather than arches". This quake radiated from the point of the fault-line that runs along the Philippine Pacific coast. People at the shore towns "saw the sea pushed back, saw the water tripped off like a carpet from the shoreline and folded up into the horizon. But the next moment the folded sea unrolled and came rushing back as a wall of water, sort of tide, a mile-wide torrent that flowed and crashed past the shoreline, engulfing trees, boats, huts and beach". Roads split was two feet, water fountained from the deep chasms created, bridges collapsed.

4 7 22 6 57 1995 -15.199 -173.529 21 8.1 Tonga Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 7 2 16 0 1934 41.500 -111.500 0 5.5 Utah

Felt at Salt Lake City (III). Also felt at Pocotello, Idaho.

4 7 15 27 50 1963 52.600 -169.500 150 5.4 Fox Islands, Aleutians

4 7 15 28 4 1963 53.710 -169.960 224 6.0 Fox Islands, Aleutians

4 7 1 43 25 1964 58.530 -154.460 2 5.0 Southern Alaska

4 7 19 28 25 1964 55.700 -151.830 20 5.5 Southern Alaska

4 7 3 16 23 1972 60.129 -152.754 98 5.1 Central Alaska

4 7 6 18 31 1979 41.982 -126.885 3 5.4 Off Coast of No. California

4 7 20 7 30 1989 33.620 -117.900 13 5.0 So. California

Near Newport Beach, Orange county, slight damage reported at Corona Del Mar, and Newport Beach. Typical damage consisted of broken chimneys, walls, plaster and windows and merchandise damaged while falling from shelves in stores. Ceiling tiles also fell from some stores in Newport Beach, and a brick wall toppled.

4 7 6 4 2 1990 56.406 -153.971 33 5.0 Southern Alaska

4 7 20 10 54 1990 55.000 -152.900 0 5.4 Southern Alaska

4 7 0 42 16 1992 50.910 -130.720 10 5.0 British Colombia

4 7 16 16 45 1994 42.561 -111.032 5 5.2 Yellowstone/Wyoming

Felt at Afton, Smoot and Thayne and at Auburn, eastern Idaho.

4 7 4 31 7 1996 51.000 -32.000 0 5.2 North Mid-Atlantic Ridge

4 7 16 43 23 2000 51.821 -170.473 33 5.0 Andreanoff Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 6 16 7 15 1943 -30.750 -72.000 55 8.3 Central Chile

Destructive at Salamanca and Illapel, Chile. 18 killed; 80 injured at Ovalle, Chile.

4 6 0 36 16 1953 -7.300 131.000 0 7.5 West Irian, PNG

4 6 13 54 38 1992 50.630 -130.510 9 7.0 British Colombia

Felt at Point Hardy and Port O'Neill, British Colombia.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 6 4 4 45 1961 40.180 -124.750 0 5.1 Off Coast of No. California

4 6 11 19 23 1963 63.400 -149.600 42 5.3 Central Alaska

4 6 10 42 37 1964 59.850 -145.470 15 5.0 Southern Alaska

4 6 13 19 3 1965 51.290 -179.760 50 5.1 Andreanoff Islands, Aleutians

4 6 14 15 0 1965 37.500 -120.000 0 5.0 California/Nevada area

Mariposa. Sidewalks cracked. "The sound of the sidewalks cracking awakened my son who got up and looked out the window to the west. My mother heard the noise while listening to the 6:15 a.m. newscast."

4 6 22 28 38 1966 56.470 -154.640 28 5.1 Southern Alaska

4 6 1 46 18 1973 51.310 -178.460 50 5.0 Andreanoff Islands, Aleutians

4 6 1 53 50 1974 54.883 -160.275 35 5.8 Unimak Islands, Aleutians

4 6 3 55 57 1974 55.045 -160.510 6 6.0 Unimak Islands, Aleutians

4 6 14 47 43 1980 61.377 -147.824 49 5.2 Central Alaska

4 6 9 22 14 1983 54.238 -133.814 10 5.0 British Colombia

4 6 0 24 10 1987 51.400 -173.300 29 5.0 Andreanoff Islands, Aleutians

4 6 13 54 34 1992 49.000 -131.000 0 5.9 Vancouver Island area

4 6 13 57 49 1992 50.530 -130.390 10 6.8 British Colombia

4 6 15 16 10 1992 50.250 -130.340 25 6.2 British Colombia

4 6 19 1 4 1994 34.192 -117.095 7 5.0 So. California

Felt (V) from Loma Linda and San Bernardino. Also felt at Los Angeles, Orange and to San Diego Counties. Occurred during the SSA meeting that year in Pasadena.

4 6 8 31 9 1995 57.000 -154.000 0 5.0 Southern Alaska

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 5 0 0 0 1690 17.500 -61.500 33 8.0 Leeward Islands

The correct date is probably April 16 (Gregorian) wile April 5 is the Julian date. Intensities of this event were as high as IX in the islands of Antigua, Monserrat, St. Kitts and Nevis.

At Antigua, stone houses suffered much, most houses were shaking down or were so split and cracked that they had to be leveled. A spit at Redonda called Rockadunda was split and turned into the sea. Landslides occurred on Nevis Peak. The sea withdrew about 500 feet from Charlestown before returning after two minutes in a tidal wave. The earth opened up to 9 feet in some places and buried solid timber sugar mills. This is one of the two largest earthquakes recorded in this region of the West Indies.

4 5 23 30 45 1901 45.000 148.000 60 7.9 So. Kurils

4 5 16 42 40 1939 -19.500 168.000 70 7.1 Vanuatu Islands

4 5 9 27 0 1949 42.000 131.500 550 7.0 NE China

4 5 21 12 40 1990 15.530 147.580 33 7.5 No. Marianas

Felt at Guam and Saipan (V). It generated an observed tsunami at the dock at Tinian, but no damage. Maximum tsunami height was probably less than the reported 3-4 meters.

4 5 4 19 52 1991 -5.900 -77.150 34 7.3 No. Peru

53 killed and 252 injured and extensive damage to 8,063 homes in the Riojo-Moyabamba-Nueva Cajamarca area. Strongly felt throughout Ecuador.

4 5 11 8 7 1999 -5.681 149.717 164 7.4 New Ireland

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 5 23 11 0 1915 38.580 -119.500 0 5.0 California/Nevada area

Coleville area. At Coleville CA., rocks rolled down the hillside.

4 5 19 26 56 1954 47.620 -129.230 0 5.0 Vancouver Island area

4 5 2 49 40 1957 52.000 -172.100 33 6.4 Andreanoff Islands, Aleutians

4 5 1 22 14 1964 56.280 -153.340 24 6.0 Southern Alaska

4 5 1 41 45 1964 56.200 -153.300 35 5.9 Southern Alaska

4 5 2 36 11 1964 60.030 -145.980 15 5.0 Central Alaska

4 5 17 42 13 1964 59.580 -144.700 56 5.2 Southeast Alaska

4 5 19 28 18 1964 60.200 -146.700 16 5.8 Central Alaska

4 5 20 13 25 1964 57.200 -152.200 33 5.2 Southern Alaska

4 5 9 27 32 1965 43.900 -127.800 33 5.1 Off Coast of Oregon

4 5 9 4 43 1971 53.359 -170.553 153 5.9 Andreanoff Islands, Aleutians

4 5 14 53 6 1971 66.800 -157.300 100 5.3 Northern Alaska

4 5 17 41 51 1986 54.055 -161.961 33 5.0 Unimak Islands, Aleutians

4 5 22 32 54 1988 50.836 -178.146 33 5.0 Andreanoff Islands, Aleutians

4 5 9 35 47 1994 51.360 -178.160 33 5.8 Andreanoff Islands, Aleutians

ODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 4 0 0 0 1819 -27.300 -70.500 0 8.0 Coast Central Chile

A very violent earthquake occurred at Copiapo, Chile (Mw 8.0). The whole city was destroyed by the shocks of this day and of the 4th and 11th. The inhabitants had barely time to save their lives. No reports of deaths. (See also April 3, 1819)

4 4 10 13 3 1904 41.800 23.400 6 7.3 Bulgaria

Limited damage was suffered in Bulgaria and northern Greece

4 4 0 50 0 1905 33.000 76.000 60 8.6 India

The earthquake that struck the Dharamshala-Kangra area in Himachal Pradesh

on April 4th, 1905 is among the deadliest earthquakes in the history of India. According to the provincial government of Punjab, 19,727 people were killed at Sialkot. Many of the fatalities were from Dharamshala, Kangra and neigbhouring towns and villages. Felt from Afghanistan to Bengal.

All the buildings were destroyed at Kangra including numerous churches and temples.

One major difficulty in this event was that most government officials were killed and there was no one to supervise the rescue and cleanup efforts. Most of the deaths were due to the ground shaking. Landslides, liquifaction and other earthquake effects caused extensive damage throughout the region.

4 4 15 48 40 1911 36.500 26.500 140 7.2 Aegean Sea

4 4 18 44 14 1950 51.770 101.000 24 7.0 So. Siberia

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 4 0 13 4 1957 58.170 -155.040 89 6.0 Alaska Peninsula

4 4 21 32 10 1961 33.800 -118.200 33 5.0 So. California

At Terminal Island, Long Beach Harbor. This shock was only slightly felt in the Long Beach-San Pedro-Wilmington area, but subsurface damage including major pipeline breakage and to oil well pipes on Terminal Island was estimated at $4.5 million. More than 40 wells were damaged and off normal production.

4 4 4 34 57 1964 60.300 -146.500 5 5.0 Central Alaska

4 4 4 54 2 1964 60.100 -146.700 40 5.6 Central Alaska

4 4 8 40 30 1964 56.500 -152.600 15 5.3 Southern Alaska

4 4 17 46 9 1964 56.300 -154.400 18 5.7 Southern Alaska

4 4 17 59 43 1964 56.400 -154.500 25 6.1 Southern Alaska

Aftershocks of the Great Alaska Earthquake of March 28, 1964.

4 4 18 15 52 1964 56.180 -154.490 22 5.0 Southern Alaska

4 4 22 16 54 1964 59.400 -145.200 10 5.1 Southern Alaska

4 4 13 45 11 1980 46.364 -122.182 4 5.0 Washington state,

Shocks associated with the eruption of Mt. St. Helen's in May 1980.

4 4 17 21 40 1993 53.980 -165.060 33 5.4 Fox Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 3 15 0 0 1520 33.000 136.000 0 7.4 Central/So. Honshu Japan

4 3 15 0 0 1819 -27.300 -70.500 0 8.0 Coast Central Chile

4 3 1 40 0 1868 19.400 -155.300 5 7.9 Hawaii

See yesterday's history for details

4 3 0 0 0 1872 36.200 36.200 0 7.5 Turkey

1800 were killed in this devastating earthquake which was felt from Antioch to Beirut to Damascus.

4 3 11 30 0 1881 38.200 26.200 0 7.3 Aegean Sea

This was one of the worst seismic tragedies to hit Greece in modern times. A very strong shock in the Aegean Sea with up to 422 aftershocks felt during the next two weeks, 5-6 of which were very strong. Of the 64 villages on the Islands 25 suffered great damage and 15 considerable damage. An estimated 4181 were killed and many thousands injured. Up to 1200 were missing and presumed dead. More than 10,000 homes and businesses were destroyed. A small tsunami (about 1 meter) was also observed.

4 3 15 21 39 1941 -22.500 -66.000 260 7.2 Argentina

4 3 2 49 57 1983 8.430 -83.180 24 7.2 Costa Rica

Five people died from heart attacks, one person killed by a collapsing house, and several people injured in southeastern Costa Rica. Also felt strongly in southwestern Panama.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 3 12 15 0 1872 36.900 -118.200 0 6.6 California/Nevada area

A strong aftershock of the earthquake of March 26, 1982.

4 3 20 8 0 1926 34.000 -116.000 0 5.5 So. California

Northeast of Banning. Possibly in the region of Twentynine Palms. Of moderately destructive force, but no damage because of lack of settlements.

4 3 15 54 52 1963 61.200 -147.800 71 5.7 Central Alaska

A strong foreshock to the great Alaskan earthquake of 1964. Felt at Valdez.

4 3 8 38 43 1964 59.600 -144.670 10 5.5 Southeast Alaska

4 3 22 15 48 1964 57.100 -151.900 15 5.1 Southern Alaska

4 3 22 33 42 1964 61.600 -147.600 40 6.0 Central Alaska

Aftershocks of the Great Alaska earthquake of March 28, 1964.

4 3 13 59 2 1970 51.815 -175.254 57 5.0 Andreanoff Islands, Aleutians

4 3 0 26 54 1976 52.150 -169.614 22 5.0 Fox Islands, Aleutians

4 3 3 46 4 1980 63.149 -149.567 92 5.0 Central Alaska

4 3 9 35 27 1980 46.227 -122.172 0 5.1 Washington state,

4 3 23 57 52 1980 46.212 -122.186 0 5.0 Washington state,

Earthquakes preceding the Mt. St. Helens eruption on May 1980.

4 3 19 26 24 1983 51.656 -176.929 61 5.2 Andreanoff Islands, Aleutians

4 3 2 57 11 1986 56.257 -153.473 33 5.1 Southern Alaska

4 3 1 18 5 1989 50.700 -170.100 0 5.0 Andreanoff Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 2 10 48 0 1851 -33.320 -71.420 0 7.1 Central Chile

A strong earthquake did moderate damage in Valparaiso, Chile

4 2 0 0 0 1868 19.500 -155.300 10 7.8 Hawaii

This was the strongest earthquake ever recorded in Hawaii. Nearly every wooden house at Keiawa, Penaluu, Ninole and beyond was knocked off it's foundation or tumbled over (recall that the Unimak tsunami hit Ninole on this day in history April 1, 1946). It shock down alomost every wall in Hilo and caused landslides beyond Hilo. Fissures opened and brooks became muddy. In one place a fissure opened about two feet and then closed, the two sides were then several inches from coincidence. At Kealakekua strong trees were bent backward and forward like reeds in a storm. At Kohala, it was reported that the force of the shock stopped all sugar mill engines, even the large 75-horsepower engine which was running at the time with a full head of steam. Ground waves estimated at 1-2 feet from trough to crest were observed at Kohala. Rumbling sounds were heard and clocks were stopped at Honolulu.

A tsunami struck the Kau-Puna coast, adding to the devastation. It was reported that the wave rolled in over the tops of the coconut trees, a height of at least 60 feet. Most houses were swept out to sea and a number of persons were drowned. At Hilo the tsunami was 10 feet.

On April 7 a powerful volcanic eruption began starting in the fissure formed at the time of the earthquake.

4 2 5 45 0 1872 36.200 36.100 0 7.3 Turkey

1800 were killed in this devastating earthquake which was felt from Antioch to Beirut to Damascus.

4 2 9 36 0 1921 23.000 123.000 60 7.2 Taiwan

4 2 5 39 11 1947 -1.500 138.000 60 7.4 West Irian, PNG

4 2 1 11 55 1964 5.900 95.700 132 7.0 Nicobar Islands

Moderate property damage occurred on Sumatra.

4 2 7 15 23 1977 -16.700 -172.100 33 7.6 Tonga Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 2 2 0 0 1875 39.500 -115.800 0 5.5 Eureka, Nevada area

One building was seriously damaged at Eureka, Nevada

4 2 11 17 0 1896 45.200 -123.200 0 5.0 Oregon state, TODAY IN EARTHQUAKE HISTORY U.S.

Three shocks in succession awakened everyone. The main shock was felt at Portand and Salem, Oregon.

4 2 0 39 45 1957 51.100 -173.000 33 6.1 Andreanoff Islands, Aleutians

4 2 16 18 55 1963 53.100 -171.700 42 6.4 Andreanoff Islands, Aleutians

4 2 9 57 55 1964 56.590 -152.700 22 5.2 Southern Alaska

4 2 11 41 11 1964 58.800 -149.600 20 5.4 Southern Alaska

4 2 20 9 42 1964 59.800 -147.000 9 5.0 Southern Alaska

4 2 22 34 32 1964 59.760 -144.070 22 5.1 Southeast Alaska

4 2 15 19 13 1967 66.810 -134.400 33 5.0 Yukon Territory, Canada

4 2 13 8 19 1972 59.889 -153.350 130 5.1 Southern Alaska

4 2 16 49 29 1973 51.940 -177.402 63 5.2 Andreanoff Islands, Aleutians

4 2 4 53 30 1988 53.600 -164.800 0 5.3 Unimak Islands, Aleutians

4 2 22 12 27 1993 51.460 -176.890 13 5.2 Andreanoff Islands, Aleutians

4 2 18 25 49 1997 51.600 -173.700 33 5.2 Andreanoff Islands, Aleutians

4 2 18 25 49 1997 51.890 -173.769 18 5.2 Andreanoff Islands, Aleutians

4 2 18 25 50 1997 51.816 -173.718 33 5.7 Andreanoff Islands, Aleutians

4 2 18 54 59 2001 64.280 -131.000 10 5.1 Yukon Territory, Canada

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 1 0 0 0 1170 45.700 26.600 150 7.0 Romania/Bulgaria

Identified in "A new Catalog of Strong Earthquakes in the U.S.S.R. from Ancient times through 1977", details are not available.

4 1 19 6 9 1927 -20.000 -177.500 400 7.1 Tonga Islands

4 1 2 9 15 1936 4.500 126.500 60 7.7 Mindanao, Philippines

This moderate earthquake did not kill in the Philippines, but an earthquake later in the day (Ms 6.8) did kill 104 in China.

4 1 14 18 8 1943 -6.500 105.500 60 7.0 So. of Java

4 1 12 28 54 1946 52.800 -163.500 60 7.4 Unimak Islands, Aleutians

This earthquake has been recalculated and was apparently much larger than originally believed. It occurred south of Unimak Island, Alaska. Minor damage occurred to Navy buildings a short distance inland from Scotch Cap Lighthouse on the southwest coast of the island. A few minutes after the earthquake a tsunami destroyed the lighthouse and took lives of the five attendants. Effects clearly indicated that the wave reached a height of 90 to 100 feet. Minor wave damage in the Aleutians occurred at Dutch Harbor and at Ikatan Island. Many aftershocks were felt, principally on Ikatan Island. Aftershocks were also reported from Chignik, Cold Bay, Sanak Island and the Shumagin Islands. The great distance between the instrumental epicenter and the aftershock locations suggests they may not have originated at the point of the mainshock.

The tsunami effects were disastrous in the Hawaiian Island (called the Laupahoehoe Tragedy of 1946). 173 lives were lost and damage was estimated at $25 million. A major portion of the damage occurred at Hilo. The wave was also noted in the Society and Marquesas Islands and at many points on the Pacific shores of North and South America.

4 1 15 18 5 1961 41.500 78.000 0 7.2 Kirgizstan/Xinjiang

4 1 0 42 2 1968 32.283 132.533 30 7.8 Kyushu, Japan area

Minor property damage occurred at Kyushu where one person died and 22 were injured. A 2.3-meter tsunami was generated on the east coast of Kyushu. It destroyed four homes and capsized several fishing boats.

4 1 17 56 23 1998 -0.544 99.261 56 7.0 So. of Sumatera

Felt strongly in Padang. Felt in Singapore and in the Kuala Lumpur area.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

4 1 19 0 0 1917 40.000 -118.000 0 5.1 Montana/Idaho

4 1 10 40 58 1941 55.800 -153.800 0 6.5 Southern Alaska

4 1 10 40 59 1941 56.000 -153.500 0 6.5 Southern Alaska

4 1 23 43 42 1945 34.000 -120.017 0 5.4 Off So. California

4 1 12 28 54 1946 52.750 -163.500 25 7.4 Unimak Islands, Aleutians

4 1 19 21 8 1951 40.470 -125.300 0 5.0 Off Coast of No. California

4 1 0 38 0 1952 48.000 -113.800 0 5.6 Montana/Idaho

Northwestern Montana. A large area of Montana, Idaho and southern British Columbia was affected by this shock. Walls cracked and chimneys twisted and fell at Flathead Lake, Mont. Slight damage at Eureka and Swan Lake, Montana.

4 1 11 35 30 1957 51.000 -173.000 0 5.8 Andreanoff Islands, Aleutians

4 1 18 18 30 1959 39.717 -120.200 10 5.8 Central California

Most of the serious property damage occurred near Loyalton, where several chimneys fell, windows were broken and plaster and walls were cracked. Felt over a large area of northeast California and Nevada.

4 1 14 12 0 1960 49.000 -129.500 0 5.0 Vancouver Island area

4 1 12 11 60 1962 63.400 -150.700 140 5.5 Central Alaska

4 1 0 1 12 1964 60.370 -146.480 23 5.1 Central Alaska

4 1 3 23 17 1964 57.200 -151.300 25 5.1 Southern Alaska

4 1 20 13 8 1964 58.270 -149.780 24 5.0 Southern Alaska

Aftershocks of the great Alaska earthquake of March 28, 1964.

4 1 9 13 14 1985 47.900 -115.800 0 5.1 Montana/Idaho

Cracked water main at East Helena. Felt (V) at Belt, Big Arm and throughout much of western Montana including Kalispell, Missoula and Helena.

4 1 7 12 27 1995 53.613 -164.438 33 5.1 Unimak Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 31 19 0 0 1650 -13.500 -71.700 30 8.2 Central Peru

Limited damage occurred at Cuzco, Collao, Lima and Bolivia.

3 31 0 0 0 1818 19.100 -103.600 0 7.5 Michoacan, Mexico

Major damage occurred in Mexico City, with additional damage at Guadalajara, Zapotlan el Grande and Colima. Many homeless and displaced.

3 31 0 0 0 1893 38.300 38.300 0 7.0 Turkey

400 killed and severe damage at Malatya, Turkey.

3 31 7 10 0 1901 43.400 28.700 32 7.2 Bulgaria

Severe damage in Bulgaria at Balchik, Kavarna, Blatnitsa and Limang.

3 31 22 0 36 1907 -18.000 -177.000 400 7.2 Tonga Islands

3 31 3 41 6 1913 51.000 -179.000 60 7.3 Andreanoff Islands, Aleutians

3 31 0 29 49 1928 38.180 27.800 10 7.0 Aegean Sea

120 killed with severe damage at Torbaly and Tepekoy, Turkey.

3 31 2 51 43 1944 -7.000 130.500 60 7.0 West Irian, PNG

3 31 18 25 47 1954 12.500 58.000 60 7.4 Arabian Sea

3 31 18 17 0 1955 8.100 123.200 96 7.6 Central Philippines

422 were killed and millions of dollars damage occurred to property and agriculture in Ilagan, Ozamis City and Lake Lanao area.

3 31 2 27 9 1963 36.900 57.700 33 7.0 No. Iran

Four were killed, several injured and 100 homes destroyed in the village of Hendojan.

3 31 9 47 31 1965 38.600 22.400 78 7.1 No. Greece

6 killed with moderate damage in Greece. A series of earthquakes battered Central Greece resulting in 6 deaths, 22 injuries and major property damage at Patras and Agrinion. The mainshock was felt from Yugoslavia to southern Italy.

3 31 7 15 54 1969 27.669 33.986 33 7.1 Red Sea

Two killed, 16 injured and heavy damage in the United Arab Republic.

3 31 13 12 52 1983 2.460 -76.690 22 7.0 Colombia

Between 250 and 350 people killed, many injured and extensive damage in the Popayn area. Felt from Bogota to Pasto.

3 31 23 1 40 1995 38.190 135.497 403 7.0 No. Honshu, Japan

3 31 6 52 50 2002 24.279 122.179 33 7.1 Taiwan

At least five were killed, and up to 200 injured. Three buildings collapsed and more than 100 homes were destroyed in the Taipei area. Water and gas lines and bridges were damaged. Landslides were observed throughout eastern Taiwan. A tsunami with heights up to 20 cm was observed in the Ryukyu Islands.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 31 7 43 0 1898 38.200 -122.400 0 6.5 Central California

At Mare Island near San Francisco. This earthquake did damage on Mare Island of about $350,000. Occurrence at night was probably the only thing that prevented loss of life. Felt as far as Carson City, NV. Chimneys twisted and miscellaneous damage was considerable at San Francisco. The shock lasted about 40 seconds.

3 31 3 41 6 1913 51.000 -179.000 60 7.3 Andreanoff Islands, Aleutians

Felt strongly at Adak.

3 31 5 47 0 1925 39.330 -120.330 0 5.0 Central California

Felt strongly in the Central Sierra between Emigrant Gap, Placer County and Donner Lake, Nevada County. Intensity up to VI.

3 31 10 8 25 1957 51.500 -178.000 0 6.1 Andreanoff Islands, Aleutians

Felt at Adak.

3 31 9 1 30 1964 50.800 -130.200 15 6.1 British Colombia

3 31 11 3 35 1964 58.900 -149.900 17 5.0 Southern Alaska

AFtershock.

3 31 2 12 15 1967 52.056 -169.702 7 5.8 Fox Islands, Aleutians

3 31 12 58 31 1970 51.890 -175.970 79 5.0 Andreanoff Islands, Aleutians

Felt at Adak.

3 31 20 33 31 1973 44.367 -110.358 0 5.1 Yellowstone/Wyoming

The press reported the shock was felt on the shore of Yellowstone Lake. It was small and did no damage.

3 31 5 48 38 1975 49.270 -125.960 18 5.4 Vancouver Island area

3 31 5 48 38 1975 49.397 -125.599 33 5.3 Vancouver Island area

3 31 0 38 13 1978 61.787 -151.432 85 5.1 Central Alaska

Felt with intensity IV at Anchorage and Talkeetna. Also felt at Kenai, Palmer and Homer.

3 31 21 2 18 1982 47.062 -66.634 3 5.0 E. of Maine

This was an aftershock of the event of Jan. 9 in New Brunswick, Canada. Minor damage including cracks in foundations and walls occurred in Aroostook County, Maine, at Caribou, Presque Isle. Felt from the St. Lawrence River south to Nova Scotia, and in Connecticut, Maine, Massachusetts, New Hampshire, New York,

Rhode Island and Vermont.

3 31 11 55 40 1986 37.467 -121.692 7 5.7 Central California

This earthquake injured three and did slight damage in San Jose to Fremont. Damage included broken water mains, fallen ceiling tiles, cracks in chimneys. Known as the Mt. Lewis earthquake. Two minor foreshocks preceded this event.

3 31 22 22 5 1988 53.000 -168.200 0 5.1 Fox Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 30 10 45 0 1796 -27.350 -70.350 0 7.7 Coast Central Chile

Destructive at Copiapo and Vallenar.

3 30 12 35 0 1828 -12.100 -77.800 50 8.2 Central Peru

The earthquake extended from Lima to Callao. Felt at Arequipa but not at Arica. A very violent earthquake lasted 40 seconds, with many aftershocks. Great damage was done, Scarcely a house in Lima or Callao remained uninjured and walls of 6 and even 9 feet thick were thrown down. The cloud of dust which arose from the ruined buildings of Lima was seen at Callao before the shock itself was felt there. At Surras streams of water burst forth from the earth. At Truxillo and elsewhere in the northern part of the district shake, the most extraordinary and violent rain followed, lasting four days and produced most disastrous inundations. On board the ship 'Volant' the shock is said to have been felt before it was perceived on shore, while the accounts from other vessels agree in saying the earthquake was first felt on land.

An interesting phenomena, which might have also been observed in the Izmit Turkey quake of 1999 related to a ship at sea. Some of the phenomena observed on board the ship in the harbor of Callao were remarkable. On board the 'Volant' about half past seven, a noise like distant thunder was heard, and then came a shock, compared to jolting over a rough road in a poorly constructed cart or to the vessel striking upon rocks of sandbanks (a seaquake). The water which was 25 fathoms deep, hissed and boiled as if red hot iron had been thrown into it, and the surface was covered with bubbles of gas of a sulfurous odor and quantities of dead fish. The sea had been quite clear, but was now disturbed and muddy. The ship swung to the extent of 14 inches on either side. On weighing anchor, the chain cable on one of the anchors was found to be half melted in a considerable part of its length, the links being drawn out and also lengthways. The chain of the second anchor was quite uninjured as were those of all other ships in the bay. Note the similarity to the story of the fishermen in the sea of Marmara - melted nets, fried fish, bubbling sea. Could this be a case of sonoluminescence?

3 30 16 55 48 1910 -21.000 170.000 80 7.2 Loyalty Islands

3 30 0 41 0 1914 16.800 -92.200 150 7.5 Chiapas, Mexico

Much damage in Chiapas

3 30 2 27 3 1965 50.320 177.930 20 7.5 Rat Islands

Aftershock of the great Rat Islands earthquake of Feb. 4, 1965.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

3 30 0 8 56 1924 50.000 -130.200 0 6.0 British Colombia

3 30 21 7 28 1943 39.430 -120.400 0 5.3 Central California

15,000 sq. miles affected in eastern California and western Nevada. Felt at Steward, Blue Canon and Truckee where objects fell and many were alarmed. Maximum intensity V.

3 30 9 17 0 1957 51.900 -175.100 0 6.2 Andreanoff Islands, Aleutians

Felt on Adak.

3 30 2 18 6 1964 56.600 -152.900 8 5.8 Southern Alaska

Strongly felt.

3 30 16 9 2 1965 53.700 -165.600 30 5.1 Fox Islands, Aleutians

3 30 12 39 56 1966 49.800 -129.899 0 5.0 Vancouver Island area

3 30 11 30 39 1971 51.191 -177.485 20 5.7 Andreanoff Islands, Aleutians

Felt with intensity III at Adak.

3 30 18 54 25 1979 51.192 -168.178 37 5.6 Fox Islands, Aleutians

3 30 13 49 37 1980 43.391 -127.205 15 5.1 Off the Coast of Oregon

3 30 18 6 16 1983 61.410 -140.383 0 5.4 Central Alaska

Felt strongly at Burwash Landing and Haines Junction, Yukon Territory, Canada. Also felt at Whitehorse.

3 30 3 13 41 1987 74.611 -130.471 10 5.5 Yukon Territory, Canada

3 30 13 33 19 1989 58.349 -137.318 10 5.6 Southeast Alaska

3 30 12 12 1 1994 59.880 -153.050 108 5.1 Southern Alaska

Felt with maximum intensity IV at Homer. Also felt at Cooper Landing and Port Graham and Anchorage, Palmer.

3 30 17 42 46 1994 66.460 -147.980 33 5.0 Northern Alaska

Felt with intensity IV at Beaver. Also felt at Fort Yukon and Fairbanks.

3 30 12 55 53 1996 51.000 -169.000 0 5.5 Fox Islands, Aleutians

Felt with intensity IV at Nikolski.

3 30 13 5 17 1996 52.214 -168.734 33 6.3 Fox Islands, Aleutians

Felt with intensity V at Nikolski.

3 30 15 19 60 1996 52.091 -168.540 33 5.2 Fox Islands, Aleutians

Felt with intensity II at Nikolski.

3 30 23 5 57 1997 51.100 -178.100 33 5.5 Andreanoff Islands, Aleutians

Felt on Adak.

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 29 2 15 0 1868 19.100 -155.650 5 7.0 Hawaii

This was a foreshock to the April 3 event. At Kahuku, a stone house was destroyed, the chimney of the Mission house was also destroyed and the walls of the stone church were cracked. AT Kona stone walls were thrown down, masses of rock were thrown off the cliff at the bay, stone buildings were damaged and the cisterns of the Kona Plantation were cracked. At Waiohinu, walls were shaken down and the stone church was cracked from top to bottom. Also felt at Hilo.

3 29 20 46 30 1907 3.000 122.000 500 7.2 Celebes Sea

3 29 21 12 37 1925 8.000 -78.000 60 7.1 Colombia

3 29 5 7 3 1928 31.483 138.183 380 7.1 Central/So. Honshu Japan

3 29 6 17 5 1954 37.000 -3.600 640 7.1 Morocco/Spain

There was extensive property damage at Malaga. Felt at Madrid, Canada and Cadiz, Spain; Tangier, Spanish Morocco and Casablanca, French Moroccs. This was a very deep focus, one of only a few outside of recognized deep subduction zones.

3 29 19 48 17 1998 -17.577 -178.988 529 7.2 Tonga Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of M>5 which have occurred in this region on this date.

3 29 5 7 52 1920 50.600 -129.869 0 6.4 British Colombia

No damage reported.

3 29 17 24 58 1931 51.000 -170.000 25 6.0 Fox Islands, Aleutians

3 29 5 10 28 1957 53.500 -166.900 33 6.7 Fox Islands, Aleutians

3 29 22 48 56 1957 52.608 -168.324 33 6.1 Fox Islands, Aleutians

Aftershocks continued from great Andreanoff Earthquake of March 9, 1957.

3 29 0 53 5 1964 57.440 -151.500 16 5.0 Southern Alaska

Aftershocks continued from great Alaska earthquake of March 28, 1964.

3 29 13 10 25 1965 33.600 -65.000 10 5.5 Off East Coast U.S.

3 29 12 40 40 1970 41.662 -113.839 7 5.1 Montana/Idaho

At Grouse Creek, UT a pipe on top of a chimney broke loose; lamp overturned, objects in room teetered slightly. Rumbling noises.

3 29 21 0 43 1972 59.863 -153.103 126 5.1 Southern Alaska

3 29 21 50 35 1974 57.585 -153.922 44 5.7 Southern Alaska

Felt with intensity IV at Kodiak. Also felt at Anchorage.

3 29 1 30 58 1987 51.570 -170.300 53 5.2 Andreanoff Islands, Aleutians

3 29 1 16 26 1988 57.278 -143.051 10 5.0 Southeast Alaska

3 29 8 31 32 1988 52.630 -168.660 17 5.7 Fox Islands, Aleutians

3 29 15 33 6 1988 54.540 -163.570 33 5.4 Unimak Islands, Aleutians

Felt with intensity IV at False Pass.

3 29 6 54 32 1992 51.580 -167.060 47 5.3 Fox Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

Two of the largest events in the U.S. occurred on this date.

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 28 23 28 0 1868 19.400 -155.300 5 7.0 Hawaii

3 28 7 49 22 1921 12.500 -87.500 0 7.4 Nicaragua

3 28 3 57 54 1922 -21.000 -68.000 90 7.2 Argentina

3 28 12 38 37 1931 -7.000 129.500 80 7.3 Banda Sea

3 28 12 6 24 1958 36.510 70.980 188 7.0 Hindu Kush/Pakistan

3 28 9 36 5 1961 0.000 124.000 150 7.4 Mindanao, Philippines

3 28 0 15 46 1963 66.290 -19.860 0 7.1 Iceland area

This was one of the largest earthquakes in Iceland in modern times. Several were injured and there was slight damage in northern Iceland.

3 28 3 36 14 1964 61.050 -147.480 23 8.5 Central Alaska

See note under TODAY IN EARTHQUAKE HISTORY U.S./CANADA

3 28 16 33 15 1965 -32.420 -71.100 68 7.4 Central Chile

About 400 persons were killed or missing, 350 others were injured. and extensive property damage was reported throughout Central Chile. The mining village of El Cobre completely disappeared after the shock shattered a 230-foot dam, cascading two million tons of water and mud into the town. There was extensive damage to bridges, roads, and public utilities, and structural damage to thousands of buildings in Santiago and Valparaiso. At Llay-Llay, almost every building was heavily damaged by the earthquake an ensuing fire. Several other towns north of Santiago also reported extensive damage.

3 28 21 2 23 1970 39.210 29.510 18 7.3 Turkey

1086 killed, 1174 injured, 8,229 buildings destroyed , 5,586 buildings damaged at Gediz Turkey and surrounding areas by this earthquake and major aftershocks. Felt throughout Anatolia at Istanbul and on Chios and Lesbos Islands.

3 28 11 0 22 2000 22.338 143.730 127 7.6 Volcano Islands

One of the largest event to occur in this region in recent history. No reports of damage.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

3 28 21 50 0 1913 36.200 -83.700 0 5.3 Kentucky/Tennessee/NC

Near Knoxville, Tenn. Two shocks were felt over an area 70 by 40 miles, with noticeable rise and fall of ground in some places. Fire alarms were set off. Knox County Courthouse, a massive structure trembled for two minutes. Movable objects were overthrown and bricks fell from chimneys. Nausea was reported by some.

3 28 4 20 26 1933 58.200 -149.000 0 5.6 Southern Alaska

Felt at Whale Island, Afognak.

3 28 19 43 16 1949 42.000 -126.000 0 5.8 Off Coast of Oregon

3 28 12 29 15 1961 51.900 -176.150 62 6.2 Andreanoff Islands, Aleutians

Felt on Adak.

3 28 3 10 0 1964 47.900 -113.800 0 5.0 Montana/Idaho

Near Ennis Montana, At Ennis well water was muddied and a large insulator broke. This was one of several events in the U.S. which preceded the great Alaska earthquake.

3 28 3 36 14 1964 61.040 -147.730 33 9.3 Central Alaska

This has been called the largest earthquake ever recorded in the U.S. or Canada at Mw 9.3. It was felt over approximately 700,000 square miles of Alaska, the Yukon and British Colombia, Canada. This was one of the most violent every recorded and vertical displacements were found over and area of 200,000 square miles. On the southeast end of Montague Island vertical displacement was up to 50 feet.

While uplift was great so was subsidence. The zone of subsidence covered and area of about 110,000 square miles and included the western portions of Prince William Sound and nearly all of Kodiak Island.

The earthquake generated many tsunamis either directly or through landsliding. These devastated towns along the Gulf of Alaska and in Hawaii and California.

The low population of the area and the time of occurrence when schools and businesses were closed or uncrowded and low tides conspired to keep the death at about 131. The greatest damage occurred in Anchorage 80 miles from the epicenter where there were rock and mud-slides, slumping, water spouts, liquefaction and sand boils.

There were thousands of felt aftershocks in the months to come and total cost was estimated at $400 to $500 million.

3 28 10 8 43 1964 43.000 -101.600 16 5.0 Wyoming/Dakotas

A foreshock occurred on March 27. Furniture vibrated and moved at Van Tassell. Also felt in Nebraska and South Dakota.

This event was felt over a large area of Nebraska, South Dakota, and border areas of Montana and Wyoming. It was the most widely felt shock since that of November 15, 1877 and was the first to center in Nebraska since March 1, 1935. At Alliance, part of a Chimney cap fell on one residence. A highway about 10 miles south of Merriam sustained about 75 cracks and steep banks reportedly fell into the Niobrara River. Plaster fell, walls cracked and several dishes broke. Slight damage was also obtained in Martin and Deadwood, So. Dakota. The logical conclusion is that this event and the others in the western U.S. on this and the previous date were in some way related to the great Alaska earthquake.

3 28 10 10 0 1964 48.000 -113.800 0 5.0 Montana/Idaho

3 28 15 19 40 1969 31.500 -114.300 33 5.0 SW U.S.A

3 28 2 39 58 1973 44.479 -110.359 8 5.0 Yellowstone/Wyoming

Felt in the epicentral region.

3 28 2 31 6 1975 42.061 -112.548 5 6.2 Montana/Idaho

In the Ridgedale area of the sparsely populated Pocatello Valley, this earthquake shifted several ranch houses on their foundations and toppled many chimneys. At Malad City, 20 km northeast of this epicenter about 40 percent of Chimneys were toppled. Total property damage was estimated at $1 million. Ground fractures were contained in a zone about 0.6 km long by 5 cm wide. The shock triggered many snow avalanches northeast of the valley. The largest earthquake ever located in this region.

3 28 6 55 15 1976 52.701 -167.153 36 5.2 Fox Islands, Aleutians

3 28 5 26 50 1987 52.000 -173.000 0 5.3 Andreanoff Islands, Aleutians

3 28 1 48 23 1996 52.318 -168.668 33 5.4 Fox Islands, Aleutians

Felt with intensity IV at Nikolski.

3 28 12 3 2 1996 51.000 -169.000 0 5.0 Fox Islands, Aleutians

Felt with intensity III at Nikolski.

3 28 19 50 51 1996 50.000 -170.000 0 5.7 Fox Islands, Aleutians

Felt with intensity IV at Nikolski.

3 28 22 23 42 1999 51.720 -177.339 67 5.2 Andreanoff Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 27 3 45 30 1908 17.000 -101.000 60 7.5 Michoacan, Mexico

This earthquake was destructive in Guerrero. A regional aftershock of the Ms 8 on March 26, 1908.

3 27 10 48 30 1926 -9.000 157.000 60 7.2 Solomon Islands

3 27 6 34 5 1949 3.500 127.500 60 7.0 Halmahera

3 27 21 18 29 1950 -5.900 102.900 0 7.0 So. of Sumatera

3 27 12 41 36 1969 4.773 127.514 32 7.0 Halmahera

Not felt.

3 27 18 36 46 1970 0.400 119.300 8 7.1 Malaysia

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

The following events of M>=5 have occurred on this date in recorded history:

3 27 17 9 52 1971 52.515 -174.546 133 5.6 Andreanoff Islands, Aleutians

Felt with intensity II at Adak.

3 27 16 28 47 1974 50.109 -179.657 37 5.6 Andreanoff Islands, Aleutians

3 27 11 39 9 1979 51.823 -175.325 43 5.0 Andreanoff Islands, Aleutians

Felt with intensity IV at Adak.

3 27 18 2 4 1984 52.011 -169.708 35 5.3 Fox Islands, Aleutians

3 27 17 10 52 1987 51.297 -178.271 33 5.1 Andreanoff Islands, Aleutians

3 27 13 23 4 1992 52.875 -173.988 182 5.3 Andreanoff Islands, Aleutians

Felt with intensity II at Adak.

3 27 14 56 52 1996 52.383 -168.733 33 5.0 Fox Islands, Aleutians

3 27 15 38 46 1996 52.298 -168.672 24 5.1 Fox Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 26 21 7 0 1812 10.000 -67.000 25 8.6 No. Venezuela

A great earthquake and tsunami hit the City of Merida de Caracaybo. The shock hit Caracas and the surrounding countryside, particularly in the high mountains of Merida and as far as Cartegena in the Andes.

The shock was felt on ships in the port of La Guayra as if they had been on the rocks. Huge waves were reported to overcome sea walls.

The earthquake had been accompanied by a noise louder than thunder. Caracas was utterly ruined in this terrible earthquake. The earth at that place appeared like the surface of a boiling liquid. At Valencia an immense torrent of water burst forth and Lake Maracaibo was lowered. Large masses of rock were detached and hurled down from the mountains. The sky was clear and the night calm and beautiful. Not a drop of rain had fallen in the previous 5 months.

The shocks were more violent in the gneiss and mica-shist of the mountains than in the plains. There were very slight in the valleys. The towns that were ruined were said to be "thrown down" like houses of cards. The shocks of the 27th were accompanied by very loud and prolonged noises. On the 5th of April the ground was in a state of undulation for several hours. On April 24 the first eruption of St. Vincent commenced. The noise from it was heard at Caracas and the country about April 30.

3 26 23 3 30 1908 18.000 -99.000 80 8.1 Oaxaca, Mexico

Earthquake caused severe damage in Guerrero, Mexico

3 26 7 12 5 1930 -7.500 125.500 40 7.2 Banda Sea

3 26 9 48 34 1963 -29.000 -177.500 0 7.0 No. Kermadec Islands

Felt on Raoul Island.

3 26 13 25 1 1963 -29.900 -178.000 40 7.2 No. Kermadec Islands

Felt on Raoul Island.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

3 26 20 12 0 1866 37.100 -121.600 0 5.9 Central California

Several Chimneys were downed at Gilroy, CA. Felt from Santa Rosa to Monterey.

3 26 10 30 0 1872 36.700 -118.100 0 8.5 California/Nevada area

3 26 14 6 0 1872 36.900 -118.200 0 6.7 California/Nevada area

This is the Owen's Valley earthquake, one of the largest ever recorded in California. The great earthquake was felt as far as Arizona and Utah. At Lone Pine 27 people were killed out of a population of 250. Fifty-two of fifty-nine houses in the town were destroyed as were most of the houses between Owens Lake and Bishop. Death and injury were mainly due to collapse of adobe buildings. Severe damage occurred as far away as Visalia and Grass Valley. Rock falls were widespread. The air was filled with dust until noon. Falling boulders gave off sparks which ignited many fires. One of the more interesting tales has to do with a government mule team at Camp Cay that was thrown to the ground by shocks, what thery were doing at that hour in that season (2:00 in the morning) is indeed puzzling as Richter (1958, p 501) comments. (This location was about 200 miles from the epicenter).

The geologic effects of this quake were marvelous and some may be seen to this day. A series of fault traces showing both horizontal and vertical displacements together with lurches and assorted fractures were noted from near Little Lake to as far north as Bishop. The block of land on which Owens Lake is situated tilted down 0.5 meters to the NW as evidenced by the height of water at that point compared to water on the NE edge. A notable tsunami occurred, the water first retreated and then rushed up some 60 meters beyond the usual shoreline. North of Lone Pine the Owens River was shifted to the west. Sloshing of the water left fish stranded on the river banks. The river ceased to flow at Lone Pine for several hours following the mainshock, this was probably caused by a landslide dam although Whitney (1872) attributed it to the water being drawn off by the many fractures.

There appears to have been a horizontal displacement of about 5 meters and about 7 meters vertical maximum. Houses on the east side of the fault fell to the north. Scarps were seen throughout the region.

3 26 19 5 53 1933 43.500 -129.000 0 5.5 Off Coast of Oregon

3 26 21 9 6 1937 40.200 -126.700 0 5.5 Off Coast of No. California

3 26 6 56 51 1955 48.100 -122.000 0 5.0 Washington state, U.S.

Located near Hartford, WA. A house foundation at Everett cracked. Many were wakened at Hartford, Monroe, Preston and Sultan. Loud earth noises accompanied the quake.

3 26 18 58 46 1965 43.200 -126.200 33 5.0 Off Coast of Oregon

3 26 2 32 31 1966 65.000 -133.500 0 5.0 Yukon Territory, Canada

3 26 11 3 58 1969 66.400 -150.100 100 5.2 Northern Alaska

3 26 17 35 18 1971 60.342 -140.991 7 5.9 Central Alaska

Felt with intensity IV at Yakutat.

3 26 17 42 7 1971 60.192 -140.828 0 5.1 Central Alaska

3 26 4 36 19 1977 52.350 -168.170 0 6.0 Fox Islands, Aleutians

Felt with intensity IV at Nikolski.

3 26 14 14 12 1992 51.310 -179.930 34 6.0 Andreanoff Islands, Aleutians

Felt with intensity III at Adak and Amchitka.

3 26 5 20 57 1995 51.000 -164.000 0 6.1 Unimak Islands, Aleutians

Felt with maximum intensity V at Cold Bay where items were knocked from shelves. Also felt with intensity V at King Cove and Sand Point. Also felt at Chignik, False Pass and Perryville.

3 26 5 57 11 1995 54.900 -161.300 33 5.3 Unimak Islands, Aleutians

3 26 21 25 41 1996 52.166 -168.724 33 5.4 Fox Islands, Aleutians

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 25 0 0 0 1751 -36.900 -73.000 0 8.5 0 Central Chile

There were 25 reported killed in an earthquake near Conception, Chile on this date in 1751. A large tsunami was generated which did damage locally. There is one report this event occurred in March, however most authorities believe this earthquake actually occurred in May with the word Mayo mistranslated to March in English translation. This is a common problem in historical seismicity studies and leads to the appearance of many double events in the literature.

3 25 0 0 0 1806 18.900 -103.800 0 7.5 0 Michoacan, Mexico

Moderate damage occurred in an earthquake which struck the Michoacan, Oaxaca and Jalisco areas on March 25, 1806. Destruction was worst at in Zapotlan el Grande, Jalisco. May people were killed in Colima where many houses were destroyed.

3 25 4 49 30 1912 -18.000 169.000 240 7.0 14 Vanuatu

3 25 23 52 17 1916 24.000 124.000 60 7.4 21 Taiwan

3 25 18 27 15 1943 -60.000 -27.000 0 7.3 0 South Sandwich Islands

3 25 20 32 15 1947 -38.920 178.240 12 7.0 1 North Island, New Zealand

A non-damaging event, an M 7.0 was felt along the east Coast of North Island with MMI IV on March 25, 1947.

3 25 13 16 9 1990 9.824 -84.766 43 7.1 535 Costa Rica

3 25 13 22 56 1990 9.959 -84.783 22 7.1 674 Costa Rica

An earthquake which was actually a double event (Ms 6.4 and 7.1) was felt throughout Costa Rica on this date in 1990 and injured ten people slightly, and damaged about sixty buildings. Several landslides blocked roads for some time. A small seismic sea wave was reported from Quepos to Tambor. It was recorded within an observed amplitude of 30 cm at Quepos. A rise of one meter was also observed at Punarenas. The earthquake and wave occurred at low tide.

3 25 3 12 25 1998 -62.877 149.527 10 8.8 418 Balleny Islands

A final event on this date occurred near the Balleny Islands near Antarctica south of New Zealand in an oceanic ridge area in 1998. This is the largest earthquake ever recorded in this area. A small tsunami of 10 cm was recorded in southern Australia, but not in New Zealand. Despite the large size, no damage resulted because of the remote epicenter of this quake.

TODAY IN EARTHQUAKE HISTORY

U.S.CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 25 23 58 31 1932 62.500 -152.500 25 6.9 0 Southern Alaska

Located in south-central Alaska, a water main broke at Seward. Rockslides covered the railroad to the north of Seward. Felt over an area 500 km east-west from Seward.

3 25 16 49 2 1937 33.400 -116.250 10 6.0 0 Southern California

An earthquake in the Terwilliger Valley, San Diego county occurred on March 25, 1937. This did less damage than expected because it was located in the mountains with few residents. Slight damage to chimneys, windows and plaster was reported. It was felt over most of Southern California.

3 25 4 56 48 1949 42.000 -126.500 0 6.2 0 Off Coast of Oregon

Reportedly felt at Grants Pass, Oregon where a vase rattled and a refrigerator shook. Windows rattled in Phoenix.

3 25 0 39 27 1957 52.900 -167.000 33 6.0 0 Fox Islands

3 25 14 13 35 1957 52.916 -166.836 33 6.1 0 Fox Islands

3 25 9 28 43 1963 36.018 -114.771 8 5.0 0 Nevada area

An event in 1963 on March 25 occurred near Boulder City, NV. It was felt over a 9,000 square mile area. Considerable amount of minor damage was done at Boulder City, consisting of cracked plaster and broken dishes. Several rockslides onto roads occurred in the Boulder City area. This was one of many earthquakes associated with the filling of Lake Powell. Large reservoirs often induce seismicity as they are filled because of loading and seepage of water into surrounding earthquake-prone areas.

3 25 12 54 55 1966 51.300 -179.700 36 5.0 34 Andreanof Islands

3 25 3 31 52 1971 50.523 -176.800 3 5.2 184 Andreanof Islands

Felt with intensity II at Adak.

3 25 17 42 0 1971 59.000 -142.000 0 5.0 0 Gulf of Alaska

3 25 22 42 3 1973 25.890 -109.878 33 5.5 180 Gulf of California

3 25 0 41 20 1976 35.590 -90.480 15 5.0 99 Missouri

Slight damage characterized by cracks in plaster and drywall, downed ceiling tiles and broken windows occurred in towns in Arkansas, Missouri and Tennessee during an event which occurred on March 25, 1976. It was felt in Alabama, Arkansas, Illinois, Indiana and Kentucky. The quake was felt over about 280,000 square km. It was one of the largest earthquakes in the region in the past 30 years.

3 25 7 49 34 1976 57.009 -153.705 28 5.0 94 Southern California

Felt in the Old Harbor area.

3 25 16 5 14 1985 37.450 -118.540 6 5.1 91 Mammoth Lakes, CA

An earthquake near Mammoth Lakes, CA., on March 25, 1985 was felt with MMI V at Tom's place and with IV at Bass Lake to Yosemite National Park. It was felt from Nevada to Tulare, CA.

3 25 19 36 46 1988 62.114 -124.165 10 6.2 590 Yukon Territory, Canada

An event on March 25, 1988 was felt at Wrigley, Whitehorse, Yukon Territory and Fort Vermillion and Peace River and Edmonton, Alberta, Canada.

3 25 19 52 37 1988 62.225 -124.257 10 5.3 140 Yukon Territory, Canada

3 25 21 58 21 1988 54.785 -159.870 33 5.3 301 Alaska Peninsula

Felt with maximum intensity at Chignik, Perryville and Sand Point. Also felt at King Cove.

3 25 13 34 35 1993 45.035 -122.607 21 5.7 454 Oregon

An earthquake known as the Scott's Mill, Oregon earthquake occurred on

March 24, 1993. This event injured numerous people. Damage to plaster, walls and windows was done from Canby to Newberg, Oregon. Lesser damage elsewhere. Several bridges were damaged in the McMinnville, Oregon area. Landslides were reported at Mt. Hood. This earthquake was felt over a very large area from Seattle, WA in the north to Coos Bay, Oregon in the south.

3 25 13 45 14 1997 53.869 -163.581 33 5.0 36 Unimak Island, Alaska

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 24 14 41 52 1921 51.500 158.200 50 7.0 Kamchatka

3 24 12 40 6 1923 31.500 101.000 60 7.3 Sichuan, China

The most destructive occurred in 1923 in Sichuan China causing severe damage throughout the province (Mw 7.3) and killing approximately 5000.

3 24 12 4 26 1934 -10.000 161.500 60 7.1 Solomon Islands

3 24 0 17 36 1951 -10.500 166.000 150 7.1 Santa Cruz Islands

3 24 12 44 3 1963 34.400 47.900 40 7.2 Iran

This event killed people and occurred in Iran (Karkhaneh) causing severe damage while killing up to 100 (Mw 7.2).

3 24 4 46 4 1976 -29.900 -177.900 33 7.3 Kermadec Islands

3 24 19 47 51 1978 44.244 148.862 33 7.6 Kuril Islands

Felt at Kurilsk and on Hokkaido and in Honshu, Japan. A tsunami was generated.

3 24 21 5 48 1978 42.839 78.606 33 7.1 Alma Ata

Damage occurred in northeastern Kyrgyzstan.

3 24 3 59 50 1980 52.940 -167.700 24 7.1 Fox Islands, Aleutians

Felt with maximum intensity V at Nikolski where slight damage occurred. Also felt at Unalaska and Dutch Harbor.

3 24 9 44 3 1984 44.117 148.192 44 7.0 Kuril Islands

Felt with maximum intensity V at Yuzhno and Kurilsk. Als felt as far as Hokkaido and in northern Honshu at Hachinohe and Miyako. A tsunami was generated with maximum height 14 cm at Nemuro, Hokkaido.

TODAY IN EARTHQUAKE HISTORY

U.S.CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 24 21 55 0 1926 46.600 -112.000 0 5.0 0 Montana

3 24 20 56 48 1949 42.100 -126.367 0 6.2 0 Off Coast of Oregon

An earthquake of Ms 6.2 also hit off the Coast of Oregon in 1949 on this date, but also did little damage. It was reported as felt at Grants Pass Oregon, "Vase and silver chest on refrigerator shook and rattled. Chair made slight movement from side to side, Bed Shook." Windows rattled in Phoenix. This earthquake was followed by a Ms 7.1 in the Olympia, Washington region on April 13, 1949 and may have helped trigger that event.

3 24 8 22 22 1957 50.890 -130.360 0 6.9 0 Vancouver, B.C.

The largest earthquake in the U.S./CANADA region on this date occurred in western Vancouver in 1957. This earthquake was Mw 6.9 but did little damage because it hit in a relatively unpopulated location.

3 24 11 6 10 1957 52.400 -169.700 33 6.2 0 Fox Islands

3 24 11 36 56 1957 52.209 -171.606 33 6.0 0 Andreanof Islands

3 24 21 35 27 1963 51.820 -178.150 80 6.0 88 Andreanof Islands

Felt at Adak.

3 24 7 7 45 1965 56.600 -152.400 20 5.1 16 Alaska Peninsula

3 24 7 36 47 1965 56.600 -152.000 20 5.1 8 Alaska Peninsula

3 24 8 8 6 1965 56.590 -152.280 30 5.1 79 Alaska Peninsula

3 24 13 30 4 1965 57.800 -148.600 13 5.0 11 Alaska Peninsula

3 24 9 2 32 1969 31.300 -114.200 16 5.3 56 Baja California

3 24 3 38 24 1972 56.140 -157.140 43 6.0 328 Alaska Peninsula

Felt with maximum intensity IV at Port Heiden and with intensity II at King Salmon.

3 24 3 59 50 1980 52.937 -167.701 25 6.1 519 Fox Islands

Felt with intensity V at Nikolski and Unalaska. Also felt at Dutch Harbor and Akutan.

3 24 4 42 0 1980 52.910 -167.700 41 5.0 159 Fox Islands

3 24 18 21 26 1981 52.630 -168.070 20 5.5 352 Fox Islands

3 24 21 4 43 1984 52.398 -168.602 43 5.4 278 Fox Islands

3 24 22 43 37 1984 52.122 -168.365 33 5.2 51 Fox Islands

3 24 17 49 58 1985 51.219 -179.193 33 5.0 94 Andreanof Islands

3 24 15 30 60 1987 53.223 -167.280 10 5.1 21 Fox Islands

3 24 6 34 44 1997 51.464 -168.235 33 5.0 143 Fox Islands

3 24 4 23 46 2000 27.551 -111.303 10 5.6 153 Gulf of California

Felt at Empalme, Guaymas, Hermosillo and San Carlos, Mexico.

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 23 20 47 18 1913 24.000 142.000 80 7.0 VOLCANO ISLANDS

3 23 23 14 13 1945 -62.000 153.000 60 7.1 MACQUARIE ISLANDS

3 23 21 38 51 1951 -32.070 -179.430 326 7.1 KERMADEC ISLANDS

3 23 5 12 43 1957 -5.500 131.000 147 7.3 BANDA SEA

Felt on the S.S. Changte south of the epicenter.

3 23 7 32 36 1975 22.740 122.800 21 7.0 TAIWAN REGION

3 23 0 31 1 1978 44.270 149.010 40 7.6 KURILE ISLANDS

3 23 3 15 20 1978 44.932 148.439 33 7.5 KURILE ISLANDS

Felt at Kurilsk and on Hokkaido and in Honshu, Japan. A tsunami was generated.

3 23 19 12 24 1978 44.400 149.630 44 7.1 KURILE ISLANDS

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 23 21 41 0 1872 40.000 -117.500 0 5.5 0 California/Nevada

In California/Nevada an earthquake of M 5.5 occurred on this date in 1872, This event occurred near Austin, NV in southern Lander County. Plaster fell in the Austin Courthouse. The event was described as a violent shock. Three days later

one of the largest earthquakes in recent California history was recorded several hundred km South of this in Owens Valley. Was this a precursory shock to the Owen's Valley event?

3 23 0 0 0 1897 45.500 -73.600 0 5.7 0 Maine

Near Calais, Maine. Not many reports due to remote nature of the epicenter.

3 23 4 14 50 1954 33.283 -116.183 16 5.1 0 Southern California

Located in the Santa Rosa Mountains. Felt by and frightened many at Palm Springs. Plast cracked and small objects and furniture shifted.

3 23 13 40 0 1957 51.303 -179.801 33 6.0 0 Andreanof Islands

Felt at Adak.

3 23 19 42 56 1957 70.600 -65.000 0 5.9 0 Baffin Bay

3 23 7 10 20 1959 39.430 -117.990 0 6.3 0 California/Nevada

The largest shock on this date in the California/Nevada region and in the U.S./Canada occurred 87 years later in 1959 in the same area as the earthquake of March 23, 1872. This event near Dixie Valley, NV cracked plaster from Carson City to Frenchman Station (Mw 6.3). The top of a new addition to the State printing office was also damaged. No fresh ground cracks could be found following this earthquake. Stronger events in the Dixie Valley region had occurred in 1954 with much ground cracking.

3 23 3 15 13 1960 44.500 -111.000 0 5.0 0 Yellowstone, Montana

In the Hebgen Lake region of Montana bordering on Yellowstone National Park. Objects fell from shelves at West Yellowstone. Strongly felt. A loud earthquake noise was heard.

3 23 7 55 14 1964 77.000 -132.200 16 5.0 0 Northwestern Canada

3 23 11 32 22 1969 31.400 -115.000 16 5.2 30 Baja California

3 23 15 39 1 1969 31.500 -114.100 16 5.2 65 Baja California

3 23 1 6 1 1975 63.123 -151.048 117 5.0 11 Southern Alaska

3 23 7 23 13 1978 52.010 -169.465 23 5.8 204 Fox Islands

3 23 17 21 55 1979 26.740 -110.806 15 5.5 149 Gulf of California

3 23 18 11 54 1979 26.460 -110.736 15 5.2 39 Gulf of California

3 23 8 38 6 1984 58.780 -154.133 119 5.2 0 Southern Alaska

Felt with maximum intensity at Portlock, Homer, Seldovia. Also felt

at Kodiak.

3 23 21 35 13 1985 52.624 -178.872 233 5.0 217 Andreanof Islands

Felt with intensity III at Adak.

3 23 20 22 40 1988 52.482 -169.437 4 5.2 250 Fox Islands

3 23 21 7 18 1990 63.519 -152.185 10 5.1 43 Southern Alaska

3 23 2 59 16 1994 31.806 -116.128 23 5.0 161 Southern California

Felt at Ensenada, Mexicali, Tecata, Tijuana with intensity IV to V. Also felt at Heber, Ocotillo, Brawley, Niland and Holtville.

3 23 7 32 52 1996 51.672 -176.210 50 5.1 73 Andreanof Islands

Felt on Adak.

3 23 19 24 39 1996 51.000 -173.000 0 5.0 0 Andreanof Islands

3 23 2 28 11 1998 43.440 -127.088 10 5.2 222 Off Coast of Oregon

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 22 10 23 0 1894 42.500 146.000 60 7.9 North of Hokkaido, Japan

Limited damage at Nemuro, Hokkaido, Japan. Felt with intensity IX. A tsunami was generated.

3 22 3 38 53 1905 51.280 174.830 0 7.2 Rat Islands, Aleutians

3 22 8 41 55 1925 -18.500 168.500 50 7.6 Vanuatu Islands

3 22 4 17 3 1928 16.230 -95.450 0 7.7 Oaxaca Mexico

It would seem the Oaxaca, Mexico event of 1928 should have caused extensive damage, but no reports are available here.

3 22 0 43 18 1944 -8.500 123.500 220 7.5 Timor, Indonesia

3 22 14 5 6 1955 -8.700 91.600 10 7.1 So. Indian Ocean

3 22 14 21 11 1957 53.500 -165.000 0 7.5 Fox Islands, Aleutians

3 22 10 27 43 1972 49.120 153.570 136 7.0 Northern Kuril Islands

3 22 0 50 32 1978 44.020 149.010 37 7.2 Kuril Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 22 0 0 0 1876 39.527 -111.582 0 5.0 6 Utah

3 22 22 12 0 1902 42.000 -130.000 0 6.8 0 Off Coast of No. California

3 22 15 22 20 1938 52.540 -131.900 0 6.3 0 Queen Charlotte Islands

This event was felt strongly on the Queen Charlotte Islands and up to the Alaskan panhandle. Dishes rattled in Prince Rupert.

3 22 22 27 52 1938 52.480 -131.370 0 5.2 0 Queen Charlotted Island

3 22 18 15 42 1952 51.500 -173.500 0 6.4 0 Andreanof Islands

3 22 5 19 0 1953 38.817 -119.983 0 5.0 0 California-Nevada Border

Felt with maximum intensity V at Meyers where many were frightened. Houses creaked and small objects shifted. Loud earthquake noise heard. Felt as far as Markleeville, Carson City and Gardnerville, Nevada.

3 22 14 21 7 1957 53.707 -165.819 33 7.0 1 Fox Islands

3 22 14 21 10 1957 53.740 -165.660 20 7.0 0 Fox Islands

3 22 14 33 13 1957 53.684 -166.060 33 6.3 0 Fox Islands

3 22 19 44 21 1957 37.667 -122.483 10 5.3 0 Central California

The earthquakes on March 22 and 23 in California caused property damage of about $1 million and injured about 40 people. The first of these (Mb 5.3) killed one. Minor damage was done to houses along the ocean west of Daly City. Many chimneys were damaged at Daly City as well. In San Francisco widespread damage to chimneys, plaster, merchandise and windows occurred. Pavement along Lake Merced fell off into the lake, and both ends of a pedestrian bridge collapsed. Landslides blocked State Highway 1 near Mussel Rock and the shoulder of the highway was cracked extensively. The shock on March 23 caused slight damage at Menlo Park and San Francisco as well. This was the strongest shock in the San Francisco bay since 1906 and was felt over a 12,000 square mile area. The Westlake reservoir near Daly City had a 4-foot crack on one side extending from the ground to the top. Damage was also done at the San Francisco International Airport. There was extensive infrastructure damage throughout the city of San Francisco. A special report was issued on this earthquake.

3 22 16 30 56 1964 38.700 -118.800 0 5.5 46 California-Nevada border

Among the earthquakes in the preceding the Alaska Good Friday event of March 28 (UT) was a Mb 5.0 on the California-Nevada border region north of Mammoth Lakes on Mar 22, 1964. This event was felt over 7500 square miles of eastern California and western Nevada. The only report of damage was a crack in a patio near the epicenter, however many were frightened or awakened by this early morning earthquake. A similar earthquake had occurred on March 22 1953 in the Markleeville, CA region. This event also frightened many. Houses creaked and objects were moved. A very loud rumbling sound preceded and accompanied the earthquake.

3 22 22 10 3 1966 64.750 -88.000 0 5.1 0 Nunavut, Canada

3 22 7 25 36 1969 31.400 -114.100 16 5.5 104 Baja California

3 22 18 23 2 1969 31.500 -114.200 0 5.2 0 Baja California

3 22 20 58 36 1973 51.143 -179.238 39 5.0 142 Andreanof Islands

Felt with intensity II at Adak.

3 22 7 4 7 1974 53.667 -163.445 36 5.0 153 Fox Islands

3 22 15 14 0 1979 41.903 -126.817 19 5.1 136 Off Coast of Northern California

3 22 5 30 2 1986 60.340 -153.273 166 5.4 0 Southern Alaska

Felt at Homer.

3 22 2 49 20 1987 51.605 -173.594 0 6.0 545 Andreanof Islands

Felt with intensity IV on Atka and Adak.

3 22 2 57 52 1987 51.668 -173.504 33 5.2 30 Andreanof Islands

3 22 17 45 5 1987 52.118 -171.475 34 5.3 283 Andreanof Islands

3 22 18 23 51 1993 52.172 -172.889 33 5.7 295 Andreanof Islands

Felt with intensity IV at Adak and Atka.

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 22 10 23 0 1894 42.500 146.000 60 7.9 North of Hokkaido, Japan

Limited damage at Nemuro, Hokkaido, Japan. Felt with intensity IX. A tsunami was generated.

3 22 3 38 53 1905 51.280 174.830 0 7.2 Rat Islands, Aleutians

3 22 8 41 55 1925 -18.500 168.500 50 7.6 Vanuatu Islands

3 22 4 17 3 1928 16.230 -95.450 0 7.7 Oaxaca Mexico

It would seem the Oaxaca, Mexico event of 1928 should have caused extensive damage, but no reports are available here.

3 22 0 43 18 1944 -8.500 123.500 220 7.5 Timor, Indonesia

3 22 14 5 6 1955 -8.700 91.600 10 7.1 So. Indian Ocean

3 22 14 21 11 1957 53.500 -165.000 0 7.5 Fox Islands, Aleutians

3 22 10 27 43 1972 49.120 153.570 136 7.0 Northern Kuril Islands

3 22 0 50 32 1978 44.020 149.010 37 7.2 Kuril Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 22 0 0 0 1876 39.527 -111.582 0 5.0 6 Utah

3 22 22 12 0 1902 42.000 -130.000 0 6.8 0 Off Coast of No. California

3 22 15 22 20 1938 52.540 -131.900 0 6.3 0 Queen Charlotte Islands

This event was felt strongly on the Queen Charlotte Islands and up to the Alaskan panhandle. Dishes rattled in Prince Rupert.

3 22 22 27 52 1938 52.480 -131.370 0 5.2 0 Queen Charlotted Island

3 22 18 15 42 1952 51.500 -173.500 0 6.4 0 Andreanof Islands

3 22 5 19 0 1953 38.817 -119.983 0 5.0 0 California-Nevada Border

3 22 14 21 7 1957 53.707 -165.819 33 7.0 1 Fox Islands

3 22 14 21 10 1957 53.740 -165.660 20 7.0 0 Fox Islands

3 22 14 33 13 1957 53.684 -166.060 33 6.3 0 Fox Islands

3 22 19 44 21 1957 37.667 -122.483 10 5.3 0 Central California

3 22 16 30 56 1964 38.700 -118.800 0 5.5 46 California-Nevada border

3 22 22 10 3 1966 64.750 -88.000 0 5.1 0 Nunavut, Canada

3 22 7 25 36 1969 31.400 -114.100 16 5.5 104 Baja California

3 22 18 23 2 1969 31.500 -114.200 0 5.2 0 Baja California

3 22 20 58 36 1973 51.143 -179.238 39 5.0 142 Andreanof Islands

Felt with intensity II at Adak.

3 22 7 4 7 1974 53.667 -163.445 36 5.0 153 Fox Islands

3 22 15 14 0 1979 41.903 -126.817 19 5.1 136 Off Coast of Northern California

3 22 5 30 2 1986 60.340 -153.273 166 5.4 0 Southern Alaska

Felt at Homer.

3 22 2 49 20 1987 51.605 -173.594 0 6.0 545 Andreanof Islands

Felt with intensity IV on Atka and Adak.

3 22 2 57 52 1987 51.668 -173.504 33 5.2 30 Andreanof Islands

3 22 17 45 5 1987 52.118 -171.475 34 5.3 283 Andreanof Islands

3 22 18 23 51 1993 52.172 -172.889 33 5.7 295 Andreanof Islands

Felt with intensity IV at Adak and Atka.

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 21 18 0 0 1829 38.200 -0.900 0 7.0 0 Spain

The most disastrous earthquake in the recorded history of Spain occurred on June 21, 1829. This event was felt in province of Murcia, Spain, but was slightly felt to Madrid. The valley of Segura seems to have been the center of the disturbance for the shocks were most violent there. The earthquake was preceded by a slight shock at noon but about 6 hours later the mainshock came accompanied by loud underground noises. The earthquake lasted at least a minute at very severe levels. The damage done was enormous in very many towns and villages of Murcia, and in Guradamar, La Mata and Torrevieja in Valencia. Some places were totally ruined and the destruction of churches, houses and loss of life were terribel. The precursory noise like thunder was heard at Torrevieja for more than three-quarters of an hour. It generally resembled cannon explosion and sometimes increased gradually and then ceased. It was not heard thereafter until the following September. At Daja Naeva and Daja Vieja fissures opened in the earth, and small holes appeared from some of which large quantities of dey sand and form others of sand and water were thrown out. In Estremadura, the waster of a lake suddenly disappeared. On the right bank of the Segura, it was remarked, the shocks were more numerous and lasted longer than on the left bank. The course of the river changed and now enters the sea at different place than it had before the earthquake.

3 21 14 19 12 1926 -61.000 -25.000 0 7.1 0 South Sandwich Islands

3 21 1 11 9 1939 -1.500 89.500 60 7.2 33 South of Sumatra

3 21 20 35 43 1943 -5.800 152.300 60 7.3 15 New Britain

3 21 23 42 11 1954 24.500 95.300 180 7.5 25 Myanmar

Minor damage was reported from Shillong, Burma/India. Felt in Assam, Bengal, Bihar and Orissa in India.

3 21 3 42 20 1964 -6.400 127.900 367 7.0 23 Banda Sea

Felt at Darwin, Australia.

3 21 21 18 54 1977 27.609 56.393 29 7.0 295 Iran

This Mw 7.0 event was centered in the Bandar Abbas area near the Persian Gulf. The earthquake killed 152 injuring 560 and causing considerable damage over an area of 550 square km. This shock was followed by a number of aftershocks, the two strongest of Ms 6.0. Both aftershocks caused additional damage in the epicentral area. About 7000 were left homeless in the Bandar Abbas area. 35 villages were destroyed in this earthquake.

3 21 2 32 6 1982 42.067 142.600 40 7.1 0 Hokkaido

Damage was extensive in southern Hokkaido where the event was felt with intensity VI and more than 100 were injured. Felt as far as central Honshu. A tsunami was generated which had maximum height of 80 cm at Urakawa.

3 21 8 18 39 1985 6.581 94.817 33 7.1 111 Sumatra

3 21 16 45 60 1990 -31.560 -177.510 233 7.1 1 Kermadec Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 21 6 4 0 1904 45.000 -67.200 0 5.8 0 Maine

The most unusual earthquake on this date occurred in southeastern Maine in 1904. This strong (Ms 5.8) earthquake overthrew chimneys in Washington County, in the area of Calais and Eastport ME. and at St. Stephen, New Brunswick. It was felt throughout most of New England and the provinces of New Brunswick and Nova Scotia. It was also observed west to the Hudson River and Montreal, Canada and south the southern Connecticut.

3 21 15 22 4 1925 47.800 -69.800 0 5.0 0 Quebec

3 21 3 7 32 1969 31.300 -114.700 16 5.2 61 Baja California

A swarm of events in 1969 south of Yuma near the Gulf of California were the only noteworthy events in the California/Western U.S. region on this date. These events occurred in an unpopulated area and did not cause damage or casualties although many of Ml>5 occurred.

3 21 3 9 8 1969 29.300 -116.600 33 5.1 31 Baja California

3 21 3 53 47 1969 31.420 -114.130 69 5.3 101 Baja California

3 21 4 12 27 1969 31.200 -114.200 16 5.2 52 Baja California

3 21 4 21 54 1969 31.300 -114.300 16 5.1 30 Baja California

3 21 4 26 24 1969 31.200 -114.400 16 5.0 40 Baja California

3 21 4 44 29 1969 31.000 -114.500 16 5.2 35 Baja California

3 21 4 47 4 1969 31.200 -114.200 16 5.1 37 Baja California

3 21 4 56 20 1969 31.200 -114.200 16 5.8 132 Baja California

3 21 4 56 21 1969 31.260 -114.340 36 5.4 132 Baja California

3 21 5 39 56 1969 31.400 -114.300 16 5.0 38 Baja California

3 21 5 50 44 1969 31.300 -114.300 16 5.0 33 Baja California

3 21 5 59 21 1969 31.380 -114.130 52 5.0 63 Baja California

3 21 6 5 17 1969 31.300 -114.000 16 5.1 42 Baja California

3 21 6 34 22 1969 31.100 -114.300 16 5.7 133 Baja California

3 21 7 21 10 1969 31.350 -114.380 16 5.2 104 Baja California

3 21 7 37 30 1969 31.300 -114.100 16 5.0 25 Baja California

3 21 7 54 12 1969 31.000 -114.400 16 5.0 36 Baja California

3 21 8 38 53 1969 31.100 -114.200 16 5.1 58 Baja California

3 21 8 56 16 1969 31.200 -114.200 0 5.5 0 Baja California

3 21 9 36 4 1969 31.200 -114.000 16 5.0 37 Baja California

3 21 10 1 36 1969 31.300 -114.000 16 5.0 30 Baja California

3 21 10 10 11 1969 31.200 -114.300 16 5.5 117 Baja California

3 21 12 19 54 1969 31.200 -114.200 16 5.2 39 Baja California

3 21 15 57 42 1969 31.200 -114.300 16 5.1 73 Baja California

3 21 16 29 40 1969 31.300 -114.300 16 5.1 55 Baja California

3 21 17 55 49 1969 31.290 -114.010 41 5.2 47 Baja California

3 21 18 0 21 1969 31.100 -114.300 16 5.3 49 Baja California

At least 140 earthquakes of M>=4.1 were located near this epicenter on March 21, 1969.

3 21 2 39 47 1970 25.606 -109.665 5 5.1 89 Gulf of California

3 21 3 23 1 1970 53.000 -168.000 33 5.5 7 Fox Islands

3 21 9 47 38 1972 49.993 -176.131 33 5.3 191 Andreanof Islands

3 21 23 1 37 1981 58.970 -154.697 136 5.0 45 Alaska Peninsula

Felt at Anchorage, Homer, Kenai, Kodiak and Soldotna.

3 21 23 33 37 1984 48.600 177.900 33 5.2 0 Rat Islands

3 21 23 56 18 1986 54.245 -121.855 15 5.3 375 Alberta, Canada

The strongest earthquake in the U.S./Canada region on March 21 was a Ml 6.0 in British Colombia in 1986. This event was felt in many parts of British Colombia and Alberta including the cities of Prince George, Fort St. John, Dawson Creek Kamioops, Vancouver, Grande Prairie, Edmonton and Calgary.

3 21 10 41 36 1987 52.043 -177.560 95 5.9 627 Andreanof Islands

Felt with intensity V at Adak.

3 21 12 12 21 1987 46.650 -80.945 1 5.3 15 North of Ohio

3 21 15 31 29 1987 49.400 -178.800 33 5.4 0 Andreanof Islands

3 21 5 4 45 1991 62.809 -149.512 79 5.0 179 Southern Alaska

Felt with maximum intensity V at Anchorage. Also felt at Cantwell and throughout central and south-central Alaska from Anchorage to Fairbanks.

3 21 10 18 32 1991 55.148 -152.871 33 5.0 142 Alaska Peninsula

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 20 23 0 0 1861 -32.900 -68.900 30 7.0 0 Argentina

The worst seismic catastrophe ever to hit the country of Argentina occurred on March 20, 1861. This earthquake (Mw 7.1) caused massage destruction and loss of life in Mendoza, Argentina. Estimated losses included 11,978 persons were killed. Destruction in the area was instantaneous and wide spread through the entire city of San Vicente. In the annals of the city of Los Andes, among the casualties were 1,583 children including nearly half the residents of the city.

3 20 18 31 25 1920 -35.000 -110.000 60 7.0 43 West Chile Rise

3 20 17 7 26 1960 39.833 143.433 60 7.2 0 Hokkaido, Japan

Felt on northern Honshu and southern Hokkaido. A tsunami was generated with maximum height 5 feet at Miyako.

3 20 1 42 50 1966 0.600 30.200 36 7.2 0 Uganda

The most unusual earthquake of the day occurred in 1966 at Kichwamba and Bondibogyo, Uganda (Mw 7.0). This earthquake is the largest and most destructive earthquake ever to be experienced in that country and one of the most destructive in African history. The damage was centered about Bundibugyo, a one-street township about 42 miles from Fort Portal, near the congo border. About 140 fatalities and hundreds of injuries were reported from Bundibugyo Fort Portal and Kichwamba. At Kamango, in the Congo, a chasm 9 feet wide and 1,000 feet long opened up in the ground. Immediate relief measures were greatly impeded by landslides which severed communications and blocked highways.

3 20 10 47 46 1999 51.587 -177.668 33 7.0 540 Andreanof Islands

Felt strongly on Adak and Amchitka.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 20 21 55 7 1945 34.250 -116.166 16 5.0 0 Southern California

3 20 15 22 17 1950 40.450 -121.470 0 5.5 0 Northern California

The most unusual event occurred on March 20, 1950 (Mb 5.0) near Lassen Peak and Shasta Dam in northern California. The event was felt over about 5,000 sq. miles and extended from Hat Creek to Susanville, Sacramento and Shasta Dam. Scattered reports of felt effects came from Nevada as well.

3 20 8 16 23 1969 31.400 -114.000 16 5.2 34 Baja California

3 20 8 17 42 1969 31.300 -114.200 16 5.9 138 Baja California

At least 140 earthquakes of M>=4 were located near this epicenter during he date of March 20-21.

3 20 8 23 1 1969 31.400 -114.100 16 5.2 33 Baja California

3 20 23 31 49 1972 51.269 -179.211 43 6.0 324 Andreanof Islands

Felt with maximum intensity IV on Adak. Also felt on Amchitka.

3 20 7 30 39 1975 51.350 -179.609 52 5.3 231 Andreanof Islands

Felt with intensity II at Adak.

3 20 13 31 19 1975 63.170 -150.844 36 5.3 21 Southern Alaska

3 20 3 59 5 1978 60.063 -153.449 172 5.1 126 Southern Alaska

Felt with intensity II at Homer. Also felt at Anchorage.

3 20 19 40 9 1986 54.202 -168.187 33 5.0 43 Fox Islands

Felt at Unalaska.

3 20 1 6 33 1989 59.885 -153.647 129 5.0 352 Southern Alaska

Felt with maximum intensity IV at Homer, Kodiak, Ninilchik and Soldotna. Also felt at Anchorage, Eagle River, Palmer and Wasilla.

3 20 14 7 17 1991 51.365 -178.525 33 5.1 90 Andreanof Islands

3 20 18 4 54 1991 55.690 -158.490 47 5.3 0 Alaska Peninsula

Felt with intensity III at Chignik and Sand Point.

3 20 11 21 40 1993 53.545 -166.049 33 5.0 127 Fox Islands

3 20 21 20 12 1994 34.231 -118.475 13 5.3 232 Southern California

The strongest earthquake on this day in California was an aftershock (Ml 5.0) of the Northridge earthquake. This aftershock shook down several structures which had been weakened by the Northridge earthquake two months earlier on MLK day in January, 1994.

3 20 5 56 8 1998 51.374 -176.878 33 5.0 55 Andreanof Islands

Felt on Adak.

3 20 10 47 46 1999 51.587 -177.668 33 7.0 540 Andreanof Islands

Felt strongly on Adak and Amchitka.

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 19 10 57 12 1952 9.500 127.300 60 7.9 22 Northern Mindanao, Philippines

This earthquake was felt at Bhutan City where the intensity was largest. The only known structural damage was cracks in one of the walls of the town church. A two- by three-meter section of the wall fell and broke some of the church

pews.

3 19 8 27 53 1953 14.100 -61.210 134 7.3 239 Windward Islands

Felt at Paramaraibo, Dutch Guinea and Trinidad.

3 19 4 1 38 1967 45.530 151.110 38 7.0 0 Kuril Islands

3 19 20 28 38 1984 40.348 63.361 15 7.0 628 Uzbekistan

The most damaging earthquake on this date in history occurred in 1984 in the Uzbekistan area. This Ms 7.1 injured at least 100 people and caused extensive damage in the Gazli area (MMI XI).

3 19 23 53 15 1995 -4.183 135.109 33 7.1 334 West Irian, PNG

This Ms 7.1 did some minor damage to buildings in the region of West Irian, Papua New Guinea.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 19 0 11 0 1910 40.830 -124.170 0 6.0 0

Felt as a steady shaking at Eureka, Humboldt County, northern California. No damage reported.

3 19 11 59 26 1942 51.210 -130.080 0 6.0 0

3 19 9 54 29 1954 33.283 -116.183 10 6.2 0

This event was felt over approximately 40,000 square miles of southern California and portions of southwestern Nevada and western Arizona. There were many aftershocks. In many areas groceries, vases, and small objects were knocked from shelves. In some areas glass was broken. At Coachella many were frightened. Pendulum clocks stopped and many objects fell from shelves. Near panic was reported at the local prison as the jailhouse rocked (could this be the origin of the song "Jailhouse rock" which was written about the same time?). The earthquake occurred at 01:54 a.m. Police report that bedroom lights snapped on throughout the county after the quake. At Oasis, north of Coachella a concrete surface irrigation pipe broke. At Palm Springs a water pipe broke to a hotel, and several swimming pools were cracked. A parked truck started rolling and caused an unmanned collision. San Bernardino suffered a temporary power blackout as two lines swung together.

3 19 10 21 17 1954 33.283 -116.183 16 5.5 0

3 19 11 28 51 1957 51.600 -176.800 33 6.0 0

3 19 12 50 58 1957 51.369 -175.381 33 6.8 0

3 19 17 25 11 1967 51.861 -179.985 20 5.0 55

3 19 15 20 54 1970 50.030 -179.610 8 5.3 139

3 19 8 14 27 1975 62.744 -150.650 82 5.0 20

3 19 12 20 51 1993 59.539 -152.874 104 5.2 349

Felt with maximum intensity IV at Homer. Also felt at Port Graham and Eagle River.

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 18 13 42 0 1904 42.500 145.800 30 7.6 0 Hokkaido, Japan

Limited damage in Hokkaido, Japan. Felt with intensity X.

3 18 0 58 0 1905 -27.500 -173.000 60 7.5 12 Tonga

3 18 14 6 14 1926 35.840 29.500 10 7.0 0 Turkey

3 18 8 2 23 1931 -32.500 -72.000 60 7.1 8 Central Chile

3 18 20 13 34 1931 5.800 126.300 50 7.0 22 So. Mindanao, Philippines

3 18 19 6 16 1953 39.990 27.360 10 7.5 0 Turkey

This event killed 1103 including 998 in Yenice, 50 in Gonen, 20 in Can and 3 in Manyas. Yenice was destroyed and major damage occurred at Gonen and Can. It was felt throughout the Aegean Islands and southern Greece. The felt area was estimated at about 200,000 square miles with damage more than $4 million (US$).

3 18 0 6 46 1955 53.900 161.800 40 8.2 240 Kamchatka

3 18 21 43 52 1977 16.773 122.327 37 7.0 275 Luzon, Philippines

One killed and 9 injured with damage on northern Luzon and in Manila.

3 18 9 5 50 1983 -4.883 153.581 89 7.9 334 New Britain

Felt with maximum intensity VIII in southeaster New Ireland with some damage and minor landslides. Ground cracks were observed. Trees were uprooted and steam was seen coming from fumaroles on Feni Island. A tsunami was generated with height 25 cm at Rabaul but was also observed in the Feni Islands and in southeastern coast of New Ireland.

3 18 3 36 15 1987 30.400 132.800 0 7.0 0 Kyushu, Japan

One person was killed and one died of a hearth attack. Five injured. Maximum intensity was V at Miyazaki where landslides occurred. A minor tsunami was recorded with height of 7 cm along the coast of Kyushu. Also felt on Shikoku.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 18 21 0 0 1926 43.200 -72.000 0 5.0 0 New Hampshire

Near Manchester, N.H. Chimneys were thrown down at Cornish. May be an aftershock of the earthquake on Oct. 9, 1925. Also damaging at Amherst, Lyndeborough, Manchester, Mason, New Ispwich and Wilton.

3 18 15 50 41 1946 35.700 -117.877 8 5.3 0 Central California

3 18 2 25 36 1957 52.270 -170.890 76 6.2 0 Fox Islands

3 18 18 56 28 1957 34.100 -119.167 10 5.0 0 Southern California

The event was felt over a land area approximately 3,000 square miles of southern California, principally in Ventura County. Minor damage occurred at Oxnard, Port Hueneme and Ventura. At Oxnard extensive damage was done to the old Masonic Temple where bricks and interior walls cracked and fell. Windows broke at several locations. Several pipes broke at the American Crystal Sugar Company and two steel I-beams pulled away from a brick wall and fell to the floor. A large quantity of merchandise fell in stores with considerable breakage. At Port Hueneme, a full-length crack formed in the exterior wall of the First National Bank Building. At Ventura three schools were damaged and cracks developed in the buildings.

3 18 22 20 0 1958 50.240 -172.950 0 6.2 0 Andreanof Islands

3 18 18 5 24 1966 43.700 -127.300 33 5.0 57 Off Coast of Oregon

3 18 18 11 8 1966 60.400 -146.400 17 5.0 45 Southern Alaska

3 18 20 31 28 1969 50.170 -129.880 0 5.1 89 Vancouver, B.C.

3 18 0 11 56 1994 51.390 -178.537 33 5.8 202 Andreanof Islands

Felt with intensity II at Adak.

3 18 15 24 48 1997 34.970 -116.819 2 5.1 106 Southern California

Felt with intensity VI in Barstow with minor damage. Also felt at Hinkley, Newberry Springs, Oro Grande and Rancho Cucamonga. Felt in the counties of Los Angeles, Orange, Riverside and San Bernardino.

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 17 6 0 0 1575 -33.400 -70.600 0 7.3 0 Central Chile

This event hit Valdivia and Santiago with great loss to property. While damage was severe the death toll was low.

3 17 0 0 0 1584 -11.800 -77.800 30 8.4 0 Coast of Peru

The other South American event on this date occurred nine years later in 1584 of Mw 8.4 along the central Coast of Peru. This earthquake was moderately felt, but did little damage and no loss of life is recorded.

3 17 22 53 0 1909 -2.000 121.000 60 7.1 23 Mindanao, Philippines

Moderate damage with intensity up to VIII in Mindanao, Philippines.

3 17 18 45 0 1915 42.100 143.600 60 7.0 0 Hokkaido, Japan

3 17 15 55 25 1933 54.400 162.500 20 7.1 155 Komandorsky Islands

3 17 8 19 41 1947 33.300 99.500 0 7.7 0 Xizang, China

A strong Mw 7.7 also hit southern China (Tibet) on March 17, 1947. This event was not very destructive, despite the magnitude, because it hit in an area of low population density.

3 17 21 5 3 1949 -5.500 151.000 60 7.0 15 New Britain

3 17 20 47 32 1962 10.900 -43.200 33 7.0 39 Northern mid-Atlantic

3 17 8 30 52 1973 13.372 122.787 33 7.5 94 Luzon, Philippines

The only earthquake known to have caused loss of life on this date occurred in Luzon, Philippines in 1973. This earthquake had it's maximum intensity at Hondagua, Lopez, Calauag and Guiyangan, Quezon Province. It was felt over an area of 157,000 sq. km. At the height of the earthquake, people panicked. They had to hold on to stable objects to maintain their balance. There were reports of changes in the flow of springs and wells. Sand and mud were ejected from fissures in soft ground. A reinforced concrete highway bridge collapsed. Within the epicentral area the inhabitants heard rumbling sounds coming from different directions during the occurrence of the mainshock and during he larger aftershocks. Those closest to the fault-line either fell down or were thrown up for a few feet due to the initial vertical jolt of the earthquake. Four-footed animals such as buffalo and cows were likewise knocked down. Piles of coconut trunks lying five meters away from the fault-line in the Sintones District were thrown southwestward, pinning down and killing a man who was lying down nearby during the time of the main shock. An employee of the Philippine National Railways in Hondagua,Lopez, who was sitting with a clear view of the rails reported the dislodgment in a wavy form of the rails from the ground. Some people reportedly saw the ground heave up and down in a dizzying wave-like manner. A tsunami at the western end of the sea wall in Calauag was observed to go beyond the shore by 20 meters. This was due to a rise in the sea level of about 1.3 meters. Similar effects were also noted elsewhere. The worst hit town was Quezon where 98 houses were totally destroyed and 270 others partially collapsed. 70% of the schools were destroyed. There were observations of mud boils, liquefactions and landsliding

throughout the region. Cracks up to half a meter wide formed in some areas. The prime product of the area is coconut palms. Most palms within 1 km of the fault on both sides died as water to the roots was cut off by the earthquake. The downturn in the production of coconuts caused major economic difficulty for the area throughout the next year as the earthquake occurred when the coconuts were young and were shaken off the trees.

3 17 16 36 17 2003 51.272 177.978 33 7.1 607 Rat Islands, Aleutians

Felt (III) At Shemya.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 17 4 21 0 1904 47.500 -124.000 0 6.0 0 Washington

A slightly damaging earthquake of Mw 6 that was felt slightly north of Seattle, WA in 1904. This earthquake was strongest at Victoria, B.C. but was felt widely over western Washington state from Seattle to the Olympic Peninsula west of Puget Sound. In Victoria clocks were stopped but no serious damage was reported.

3 17 14 45 53 1946 38.300 -117.900 0 5.0 0 California/Nevada

Aftershock.

3 17 7 53 59 1957 51.459 -179.505 30 6.1 0 Andreanof Islands

Aftershock.

3 17 16 17 13 1957 52.200 -165.900 33 6.4 0 Fox Islands

3 17 22 44 40 1957 53.759 -165.357 33 6.5 0 Fox Islands

3 17 19 38 20 1963 64.900 -174.900 10 5.5 0 Andreanof Islands

3 17 22 0 14 1970 59.140 -147.600 44 5.0 129 Southern Alaska

Felt with intensity II on Middleton Island.

3 17 12 28 42 1972 52.960 -165.633 26 5.1 61 Fox Islands

3 17 17 39 29 1975 51.802 -175.288 50 5.0 136 Andreanof Islands

Felt with intensity IV at Adak.

3 17 21 10 39 1979 63.069 -148.237 89 5.4 21 Southern Alaska

3 17 17 26 22 1989 58.608 -155.645 151 5.0 241 Alaska Peninsula

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 17 6 0 0 1575 -33.400 -70.600 0 7.3 0 Central Chile

This event hit Valdivia and Santiago with great loss to property. While damage was severe the death toll was low.

3 17 0 0 0 1584 -11.800 -77.800 30 8.4 0 Coast of Peru

3 17 22 53 0 1909 -2.000 121.000 60 7.1 23 Mindanao, Philippines

Moderate damage with intensity up to VIII in Mindanao, Philippines.

3 17 18 45 0 1915 42.100 143.600 60 7.0 0 Hokkaido, Japan

3 17 15 55 25 1933 54.400 162.500 20 7.1 155 Komandorsky Islands

3 17 8 19 41 1947 33.300 99.500 0 7.7 0 Xizang, China

A strong Mw 7.7 also hit southern China (Tibet) on March 17, 1947. This event was not very destructive, despite the magnitude, because it hit in an area of low population density.

3 17 21 5 3 1949 -5.500 151.000 60 7.0 15 New Britain

3 17 20 47 32 1962 10.900 -43.200 33 7.0 39 Northern mid-Atlantic

3 17 8 30 52 1973 13.372 122.787 33 7.5 94 Luzon, Philippines

3 17 16 36 17 2003 51.272 177.978 33 7.1 607 Rat Islands, Aleutians

Felt (III) At Shemya.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 17 4 21 0 1904 47.500 -124.000 0 6.0 0 Washington

3 17 14 45 53 1946 38.300 -117.900 0 5.0 0 California/Nevada

Aftershock.

3 17 7 53 59 1957 51.459 -179.505 30 6.1 0 Andreanof Islands

Aftershock.

3 17 16 17 13 1957 52.200 -165.900 33 6.4 0 Fox Islands

3 17 22 44 40 1957 53.759 -165.357 33 6.5 0 Fox Islands

3 17 19 38 20 1963 64.900 -174.900 10 5.5 0 Andreanof Islands

3 17 22 0 14 1970 59.140 -147.600 44 5.0 129 Southern Alaska

Felt with intensity II on Middleton Island.

3 17 12 28 42 1972 52.960 -165.633 26 5.1 61 Fox Islands

3 17 17 39 29 1975 51.802 -175.288 50 5.0 136 Andreanof Islands

Felt with intensity IV at Adak.

3 17 21 10 39 1979 63.069 -148.237 89 5.4 21 Southern Alaska

3 17 17 26 22 1989 58.608 -155.645 151 5.0 241 Alaska Peninsula

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 16 0 0 0 1644 4.500 -74.000 0 7.0 0 Colombia

Severe damage at San Cristobal, Venezuela and at Pamplona, Colombia. Maximum intensity VIII.

3 16 15 0 0 1649 33.070 132.050 0 7.0 0 Kyushu, Japan

3 16 1 0 0 1657 -37.000 -74.000 0 8.0 0 Southern Chile

Severe damage at old Concepcion and Penco, Chile with up to 100 killed. A tsunami was generated.

3 16 22 42 40 1906 24.000 121.000 60 7.1 21 Taiwan

Felt throughout the region of Taiwan and killed about 1300 causing severe damage throughout.

3 16 22 1 38 1923 6.000 127.000 60 7.0 22 So. Mindanao, Philippines

3 16 14 42 12 1925 25.500 100.300 60 7.1 26 Southern China

A report from the American Consulate, Yunnanfu, China indicated that about 5,000 lives were lost when an earthquake practically destroyed the city of Tali, Yunnan, Province. Fengyu and Mitu suffered heavily. Some property damage and loss of life occurred in Tengehuan, Erhyuan, Pinchuan , Menghus and Hsiangyun. Later investigations showed that up to 6000 had been lost in this earthquake (MW 7.1) throughout the province of Yunnan, China.

3 16 5 1 2 1928 -22.000 170.500 60 7.5 14 Loyalty Islands

3 16 22 15 13 1949 -5.500 151.000 60 7.0 15 New Britain

3 16 2 34 18 1957 51.405 -178.930 33 7.0 1 Andreanof Islands, Alaska

Felt at Adak and Umnak Islands.

3 16 8 44 51 1963 46.600 154.800 46 7.0 102 Kuril Islands, Alaska

Felt on northern Hokkaido, Japan.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 16 6 0 0 1930 46.600 -112.000 0 5.0 0 Montana

First of a series of shocks near Helena, Montana occurred in 1930. This Ml 5.0 caused plaster to crack and objects to fall.

3 16 9 46 18 1946 35.745 -118.039 0 5.1 0 Central California

Aftershock.

3 16 2 34 18 1957 51.405 -178.930 33 7.0 1 Andreanof Islands, Alaska

Aftershock.

3 16 6 22 18 1977 55.489 -157.044 18 5.1 47 Alaska Peninsula

3 16 2 0 52 1978 52.530 -168.684 40 5.2 78 Fox Islands, Alaska

3 16 2 9 36 1978 52.273 -168.588 26 5.5 252 Fox Islands, Alaska

3 16 3 29 58 1978 52.308 -168.591 23 5.0 107 Fox Islands, Alaska

3 16 13 33 11 1985 66.261 -149.802 15 5.0 37 Northern Alaska

Felt with intensity V at Bettles. Also felt a Manley Hot Springs, and Alyeska Pump Station Six.

3 16 17 20 45 1987 53.355 -167.248 10 5.1 102 Fox Islands, Alaska

3 16 4 17 28 1989 59.928 -69.659 10 5.2 332 Quebec

3 16 8 13 27 1989 58.622 -152.798 61 5.0 212 Southern Alaska

Felt with intensity III at Anchor Point, Homer and Port Graham.

3 16 15 52 58 1990 26.980 -109.870 33 6.3 0 Gulf of California

Felt at Los Mochis and Culiacan, Mexico.

3 16 12 50 48 1999 49.610 -66.320 18 5.1 74 Quebec

Felt with intensity V at Gros Morne. Also felt as far as Bathurst, New Brunswick and as far west as Quebec City.

3 16 15 19 56 2000 40.386 -125.279 8 5.9 372 Off Coast No. California

Felt in Humboldt and Mendocino Counties, northern California.

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 15 0 0 0 1645 -1.680 -78.750 0 7.0 0 Ecuador

3 15 23 30 0 1657 -36.830 -73.030 0 8.0 0 Central Chile

This event caused severe damage throughout the Conception/Penco region and resulted in at least 100 killed. The quake, estimated at Mw 8.0 was accompanied by a strong tsunami and shook the area with MMI XI.

3 15 0 0 0 1763 40.700 142.000 0 7.4 0 Hokkaido, Japan

Moderate damage at Hachinohe, Japan. A tsunami was generated.

3 15 18 45 0 1860 39.000 -120.000 0 7.0 0 Northern California

3 15 0 14 6 1917 38.500 144.500 60 7.1 19 Off No. Honshu, Japan

3 15 10 31 22 1924 49.000 142.500 60 7.0 41 Sakhalin, Russia

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 15 18 45 0 1860 39.000 -120.000 0 7.0 0 Northern California/Nevada

In 1860, an event estimated a Mw 7.0 occurred near Carson City, in western Nevada. This earthquake was felt over a considerable area of Nevada and portion so of north and Central California. The MMI intensity in the epicentral area is unknown as the quake occurred in an unsettled region . It was very violent at Carson City where merchandise was thrown from shelves. Rock and landslides were reported from Pyramid Lake and Carson City. The quake was felt as far as Yreka, CA and to Utah in the east.

3 15 12 2 0 1934 41.700 -112.800 0 5.1 6 Utah

3 15 5 46 23 1941 28.500 -113.200 0 6.0 0 Gulf of California

3 15 13 21 1 1946 35.750 -117.983 16 5.2 0 Central California

3 15 13 49 36 1946 35.725 -118.055 22 6.3 0 Central California

The other event of note for today occurred in 1946 (March 15) in the Walker Pass/Coso Junction region of California. This earthquake caused moderate damage at Onyx SW of the epicenters. Damage to brick buildings, chimneys, walls and plaster occurred. Concrete was broken up. Dishes broke, windows cracked and books and pictures fell. Cracks formed in the ground and in the Los Angeles Aqueduct where boulders fell blocking the line near San Canyon. There were landslides in many of the local canyons. Pipes were broken as far away a Bakersfield. This Ms 6.4 earthquake was felt as far away as Calaveras County in the north to San Diego in the South and from San Luis Obispo to Death Valley (an area of about 65,000 square miles). The earthquake was preceded by a foreshock, felt by many but described as slight. It was followed by a strong series of

aftershocks.

3 15 19 18 54 1946 35.714 -117.977 0 5.4 0 Central California

3 15 21 54 33 1946 35.750 -118.016 16 5.2 0 Central California

3 15 2 50 12 1957 52.897 -166.881 33 6.8 0 Fox Islands, Alaska

3 15 9 21 2 1960 51.000 -174.500 0 5.2 0 Andreanof Islands, Alaska

3 15 13 35 35 1969 51.310 -179.020 44 5.5 181 Andreanof Islands, Alaska

Felt on Adak.

3 15 21 7 16 1979 34.266 -116.488 1 5.6 222 Southern California

Damage with intensity VIII at Landers. Slight damage also occurred with intensity VI at Barstow, Del Rosa, Joshua Tree, Lake Arrowhead, La Quinta, Laguna Niguel and Morongo Valle. Felt from Los Angels to San Diego and east to Las Vegas.

3 15 23 7 58 1979 34.329 -116.442 2 5.0 65 Southern California

Felt with intensity V at Redlands. Also felt at Los Angeles, Orange, Riverside and San Bernardino Counties of southern California.

3 15 14 53 12 1982 52.701 -161.990 4 5.1 149 Unimak Island, Alaska

3 15 23 56 17 1988 57.037 -142.898 10 5.0 135 Gulf of Alaska

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 14 15 0 0 1763 41.000 142.000 0 7.0 0 Hokkaido, Japan

Moderate damage in Hachinohe, Japan. A tsunami was generated.

3 14 8 45 0 1913 4.500 126.500 60 8.3 23 Southern Mindanao, Philippines

The event caused great destruction, but loss of life was minimal. The following report from Davao City Mindanao is from: Series on Seismology, Volume IV, Philippines, by Lolita Garcia et al, June 1985, Southeast Asia Association of Seismology and Earthquake Engineering. " ... very violent earthquake from SE-NW, which lasted from four to five minutes. Before the first movement there were subterranean noises from the SE which lasted two minutes. Pendulum clocks were stopped and bottles and other objects fell from the shelves in the houses, bells rang, and fissures were opened up, from which water and fine sand came. The debris fell to the SE. Several walls in the church and convent were thrown down, while in the town, the palm thatch houses rocked a good deal and many of them remained out of plumb; crockery was broken in all of them. 'This earthquakes is a sever one; from the beginning I observed some of the oscillations and movements of the church and convent to be so large that it was a marvel that they were not brought to the ground. Not being able to remain upright, I knelt down but even so I could not keep still, so I lay down on the ground till the vibrations ceased, which appeared to me to be about two minutes. The earthquake seemed to be entirely oscillatory, without vertical shocks, which was the reason so little damage was done.' (Rev. R. Poruga, S.J., Davao)" A slight tsunami was generated in lakes and rivers. The earthquake was not so notable for it's damage but for it's duration. Most buildings are built to withstand horizontal forces and did not come down when the motion was mostly horizontal. It is vertical motion combined with horizontal that usually levels buildings.

3 14 20 0 6 1914 39.200 139.800 60 7.2 19 No. Honshu, Japan

Limited damage occurred at Sakurazima and Ugo and Senhoku, Japan. More than 100 were killed.

3 14 17 11 0 1943 -22.000 169.500 60 7.1 14 Loyalty Islands

3 14 18 37 56 1943 -20.000 -69.500 150 7.2 8 Northern Chile

3 14 13 12 14 1955 52.900 -173.300 160 7.0 1 Andreanof Islands

3 14 14 47 51 1957 51.240 -176.917 33 7.2 1 Andreanof Islands

Felt at Adak and Umnak Islands.

3 14 15 53 7 1965 36.300 70.700 219 7.5 54 Hindu Kush

The Hindu Kush earthquake on this day was a Mw 7.8 and occurred on March 14, 1965. Because of the great depth of this event (about 219 km) little damage was done on the surface. This is quite typical of many large earthquakes in Hindu Kush. The event on March 3, 2002 was atypical in that it did considerable damage and was said to have killed more than 100.

3 14 11 7 11 1979 17.460 -101.460 15 7.6 262 Guerrero, Mexico

The only other deadly earthquake on this date occurred in Mexico in 1979. This Mw 7.6 killed 5 and caused severe damage throughout the Guerrero state. Slight damage was also suffered at Acapulco and Guadalajara, Monterrey and Puebla. This Mexican earthquake was followed slightly more than a day later by a swarm of earthquakes in the Lander's region of southern California in the Homestead region. These earthquakes started with a Ml 4.9 and built to a maximum size of Ml 5.7. A strong aftershock sequence lasted for more then two days. The distance between the Mexican and the subsequent So. California event is approximately 19 degrees, a distance where some believe Far-field triggering is prominent. Were the events in So. California triggered by the Mexican earthquake the day before - anybody's guess.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 14 19 1 50 1933 33.616 -118.016 16 5.1 0 Long Beach, California

3 14 13 46 18 1941 28.066 -113.600 16 6.0 0 Gulf of California

3 14 18 0 0 1947 47.200 -113.500 0 5.0 0 Montana

The only damaging earthquake in the contiguous 48-states occurred as a Mb 5.0 in northern Montana in 1947. This event cracked plaster which fell to the floor at Seeley Lake where hanging objects swung and buildings cracked and rattled. Five miles to the east persons in a log house though a heavy gust of wind had caused the building to shake.

3 14 13 12 14 1955 52.900 -173.300 160 7.0 1 Andreanof Islands, Alaska

3 14 14 47 45 1957 51.320 -176.440 0 7.2 0 Andreanof Islands, Alaska

3 14 11 58 54 1961 67.800 -164.900 78 5.0 0 Bering Sea

3 14 3 31 48 1976 60.031 -153.350 146 5.7 24 Southern Alaska

3 14 2 30 24 1978 51.967 -179.115 102 5.1 50 Andreanof Islands, Alaska

3 14 14 36 26 1979 50.114 -129.562 22 5.1 108 Vancouver Islands, B.C.

3 14 15 13 35 1979 50.078 -129.674 27 5.2 155 Vancouver Islands, B.C.

3 14 20 32 54 1984 62.550 -149.970 33 5.1 0 Southern Alaska

Felt with maximum intensity IV at Eagle River, Palmer, Sutton and Wasilla.

Also felt at Anchorage, Chugiak and Willows.

3 14 9 23 55 1987 51.611 -173.485 8 5.1 203 Andreanof Islands, Alaska

3 14 19 42 6 1989 61.138 -59.295 10 5.3 97 SE Canada

3 14 15 57 52 1991 51.794 -175.264 39 5.5 263 Andreanof Islands, Alaska

Felt with intensity IV at Adak and Atka.

3 14 17 33 51 1995 54.776 -161.339 35 6.2 563 Fox Islands, Alaska

Felt with maximum intensity V at Cold Bay and Sand Point. Also felt at Akutan, King Cove and Perryville and at Chignik and False Pass.

3 14 5 43 54 1996 54.204 -166.001 5 5.3 72 Fox Islands, Alaska

Felt with intensity V on Akutan. Also felt on Unalaska.

3 14 11 56 14 1996 54.125 -165.826 5 5.0 23 Fox Islands, Alaska

Felt with intensity IV on Akutan.

3 14 15 21 31 1996 54.156 -165.906 5 5.0 58 Fox Islands, Alaska

Felt with intensity V on Akutan.

3 14 16 13 52 1996 54.134 -165.844 5 5.2 62 Fox Islands, Alaska

Felt with intensity V on Akutan.

3 14 19 27 58 1996 54.117 -166.123 5 5.0 30 Fox Islands, Alaska

Felt with intensity IV on Akutan.

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in

recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 13 15 0 0 1872 35.015 132.010 0 7.1 0 Southwestern Japan

In south- western Japan near Hamada. Damage was severe and over 600 were killed. A strong destructive tsunami was also generated with this event. This earthquake was followed less than two weeks later by one of the strongest earthquakes ever recorded in California - the Owen's Valley earthquake of March 26, 1872 (Mw 8.5). Owen's Valley is southeast of Mammoth Lakes.

3 13 14 29 0 1909 31.500 142.500 80 8.3 18 Southern Honshu, Japan

This was under the ocean at a depth of 80 km and no record of damage has been passed down.

3 13 18 31 52 1928 -5.500 153.000 100 7.0 15 New Britain

3 13 20 2 35 1948 1.500 126.500 60 7.1 23 Halmahera

3 13 16 6 54 1967 -40.120 -74.680 33 7.3 153 Southern Chile

Off the coast of Southern Chile. No damage reported.

3 13 18 45 30 1975 -21.800 170.500 85 7.1 0 Loyalty Islands

3 13 17 18 39 1992 39.720 39.630 23 7.3 0 Turkey

Over 500 were killed and 2000 injured. More than 2000 houses were damaged or destroyed at Erzincan. A large number of landslides and avalanches were recorded and blocked roads in the epicentral area. Felt over most of northeastern Turkey.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 13 13 18 28 1933 33.750 -118.083 16 5.3 0 Long Beach, California

3 13 16 20 0 1934 38.000 -118.000 0 5.0 0 California-Nevada region

3 13 2 48 20 1957 51.722 -171.214 33 6.0 0 Andreanof Islands, Alaska

3 13 15 42 13 1957 51.445 -178.729 33 6.8 0 Andreanof Islands, Alaska

3 13 19 59 23 1957 53.900 -165.400 33 6.2 0 Fox Islands, Alaska

3 13 7 33 24 1965 53.170 -162.070 36 5.5 141 Fox Islands, Alaska

3 13 14 44 7 1967 53.690 -165.250 31 5.1 105 Fox Islands, Alaska

3 13 18 43 50 1969 63.560 -128.360 18 5.0 103 Vancouver Island, B.C.

3 13 23 51 34 1971 50.611 -129.991 22 5.7 247 Vancouver Island, B.C.

3 13 9 51 34 1979 49.970 -129.733 14 5.1 114 Vancouver Island, B.C.

3 13 12 0 16 1979 49.978 -129.745 7 5.3 265 Vancouver Island, B.C.

3 13 15 2 54 1979 50.100 -129.604 14 5.0 91 Vancouver Island, B.C.

3 13 20 50 4 1979 50.028 -129.682 2 5.0 106 Vancouver Island, B.C.

3 13 22 39 8 1979 50.086 -129.652 10 5.0 77 Vancouver Island, B.C.

3 13 6 11 18 1985 51.288 -179.175 33 5.1 61 Andreanof Islands, Alaska

3 13 19 34 58 1985 43.498 -127.621 10 6.3 476 Off Coast of Oregon

Felt mildly at Cottage Grove and Portland areas in Oregon and as far north as Forks and Takeland, Washington. Neither of these events were damaging.

3 13 16 1 4 1992 52.451 -178.945 197 6.3 551 Andreanof Islands, Alaska

3 13 9 26 38 1993 71.203 -71.261 18 5.5 19 Baffin Bay, Canada

3 13 3 11 28 1994 51.343 -178.231 33 5.3 288 Andreanof Islands, Alaska

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 12 23 14 0 1909 32.000 140.000 60 7.1 18 Southern Honshu, Japan

South of Honshu, Japan.

3 12 11 44 57 1957 51.436 -177.404 33 7.3 1 Andreanof Islands, Alaska

Felt at Adak and Unmak Islands.

3 12 16 31 21 1966 24.200 122.600 48 7.6 169 Northern Taiwan

This event affected all of northern Taiwan and left 7 dead (5 in Taiwan and 2 in Okinawa) and more than 10 injured; many houses were damaged in both Taiwan and on Okinawa; the epicenter lay between Ishigaki Island and northern Taiwan; there were numerous aftershocks, including a particularly strong one on March 23.

3 12 0 21 21 1995 43.127 147.986 64 7.1 63 Southern Kuril Islands

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 12 7 15 0 1761 42.500 -71.000 0 5.0 0 New York State

Felt widely in the epicentral region.

3 12 7 0 0 1853 43.700 -75.500 0 5.0 0 New York State

Felt widely in the epicentral region.

3 12 10 30 0 1918 39.580 -120.830 0 6.3 0 Northern California

In California a Ms 6.3 hit Downieville, Sierra County on March 12 in 1918. Chimneys were knocked down but the shock was only locally felt. A strong aftershock occurred 2 hours later.

3 12 20 45 0 1933 38.800 -117.600 0 5.0 0 Nevada

3 12 15 5 48 1934 41.700 -112.800 0 6.6 0 Utah

The largest recorded earthquake to hit Utah since settlement occurred there in the 19th Century occurred on March 12, 1934 (Ms 6.6). The earthquake occurred in a sparsely populated area and killed only two people. Property damage was limited to cracked walls and downed chimneys throughout the Kosmos/Lake Bonneville areas of Utah. Rock slides were observed just north of Monument Rock and near Snowville, Utah. Several other minor rockslides were also observed. A number of ground cracks were developed in the epicentral area. Most of the cracks were in salt flats or poorly consolidated gravels. None were continuous for long distances. Four distinct fractures about 1 km apart developed across a road about 5 km north of Kosmo, UT. The vertical displacement along the fractures ranged from about 7.5 to 25.5 cm. Precise leveling surveys showed subsidence in some areas up to nearly a half meter. There was no horizontal displacement. In some areas the cracks stayed open for up to a foot and a half. One graben was noted north of Kosmo about 60 feet across with the displacement of 8 inches on the west side and 5 inches on the east side. This suggested nearly vertical motion was involved with the sinking of blocks within graben-like structures. Hansel Valley is very similar to other such grabens in Nevada and Utah being of the basin and range type. It trends north and south and has very steep slopes. No fractures were noted in bedrock, however, so what was observed may be surface expressions in unconsolidated material. Numerous springs developed in the epicentral area as a result of the earthquake. All apparently rose along well-defined fractures and most formed in salt-flats. All the water flowing from the springs had a strong salty taste, this would be expected as it flowed through salt beds. Considerable water also flowed from fractures at Monument rock, especially from two holes in salt flats northeast of there one of which had diameter of 3 meters and depth of 11 meters. In addition to the springs, water flowed from an old well, but within days had ceased. It appeared as if the water was forced from the ground under considerable pressure. Water in some wells was observed to rise up to 12 feet. Oil seeps were also observed 10 miles south of Promontory rock. In the epicentral area the ground motion was described as "bumping". A farmer near Kosmo stated that movements in his pasture resembled waves on water - an observation often made in large earthquakes. Many reported sounds of a roaring, rumbling thunderous nature like the passing of a train and these sounds were heard as far away as Salt Lake City nearly 70 km away. The area had shown seismic activity for some years prior to this earthquake.

3 12 18 20 12 1934 41.700 -112.800 0 6.0 0 Utah

3 12 7 28 54 1957 51.707 -173.591 33 6.4 0 Andreanof Islands, Alaska

3 12 11 44 57 1957 51.436 -177.404 33 7.3 1 Andreanof Islands, Alaska

In the Aleutians, aftershocks of Ms 7+ continued following the great shock of Mar. 9, 1957. An Ms 6.5 hit near these same epicenters in the central Aleutians on March 12, 1990. None of these earthquakes were damaging. A similar quake hit the Aleutians with Ms 6.4 on March 12, 1965 and with Ms 5.4 on this date in 1975 and 1980.

3 12 7 39 17 1965 51.500 -178.200 33 6.5 0 Andreanof Islands, Alaska

Felt at Adak.

3 12 10 43 32 1975 51.143 -177.527 18 5.4 171 Andreanof Islands, Alaska

Felt at Adak with intensity IV.

3 12 23 4 35 1980 52.146 -168.984 40 5.4 167 Fox Islands, Alaska

3 12 7 0 14 1983 52.231 -170.218 25 5.2 212 Andreanof Islands, Alaska

3 12 14 41 20 1990 51.448 -175.057 14 6.2 638 Andreanof Islands, Alaska

Felt with intensity IV at Adak and Atka.

3 12 14 47 17 1990 51.394 -174.991 3 5.0 66 Andreanof Islands, Alaska

3 12 15 6 33 1990 51.484 -175.004 0 5.1 170 Andreanof Islands, Alaska

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 11 20 10 0 1817 45.883 6.750 0 8.0 0 France

Since this is an unusual event, especially since it is so large for an area with normally subdued seismicity, it is suspect. The Significant earthquake catalog identifies the source as a Rothe paper from 1938 in which he stated the earthquake killed 4 and inflicted heavy damage in the Chamonix Valley in France. This event, however is not listed in the French earthquake catalog: Les tremblements de terre en France by J.Vogt. No reference can be found to it in other contemporary catalogs either, suggesting it was a local event and the Magnitude 8 assigned to it was really an MMI VIII report.

3 11 21 37 50 1945 37.000 142.000 50 7.2 19 Off E Coast Honshu, Japan

3 11 9 58 44 1957 52.584 -169.237 33 7.0 1 Fox Islands

3 11 14 55 26 1957 51.411 -178.544 33 7.1 1 Andreanof Islands

Felt at Adak and Umnak.

3 11 0 26 1 1958 24.620 124.290 77 7.5 0 Ryukyu Islands

Several killed and many injured at Okinawa. Fissures were oberved on Miyako and Ishigaki. Felt on Batan Islands.

3 11 19 22 0 1997 7.742 127.647 10 7.2 210 Mindanao, Philippines

Felt with maximum intensity V at Bislig. Damage occurred to buildings at Cagayan de Oro. Also felt at Davao, Surigao and General Santos.

TODAY IN EARTHQUAKE HISTORY

U.S.CANADA

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 11 6 52 0 1910 36.920 -121.670 0 5.5 0 Central California

Widely felt with intensity VI in the Monterey Bay, Aptos and Watsonville. Also felt from

Chittenden to Pajaro Valley. Many were alarmed.

3 11 10 17 30 1912 51.000 -131.000 0 6.5 0 Queen Charlotte Islands

3 11 1 54 8 1933 33.616 -117.966 16 6.3 0 Long Beach, California

The event occurred on March 10, local time, but time is usually referred in earthquake catalogs to UT. The following discussion is partially from "Earthquake Investigations in the Western U.S., 1931-1964" by Karl V. Steinbrugge and Vincent R. Bush, Publication 41-2, U.S. Dept. of Commerce, CGS. This earthquake (Ms 6.3) was the first strong event this century in southern California during the 20th Century and "marks a major turning point in the field of earthquake-resistive design and construction for much of California. Earthquake bracing provisions up to that time were not containeded in any of the metropolitan Los Angeles building ordinances, including that of Long Beach. There had been controversy regarding the potential earthquake hazard to the Los Angeles area. One book, authored by a prominent geologist and published in 1928, stated: 'The accumulative weight of data substantiates beyond a doubt any deduction that Los Angeles is in no danger of a great earthquake disaster.' The 1933 Long Beach disaster brought the debate to a close. The earthquake had a Richter magnitude of 6.3. The instrumental epicenter, not far from Huntington Beach was about 10 miles southeast of Long Beach in the Pacific Ocean. Property damage was estimated to be from $40 to over $50 million." It was not a huge quake from seismological considerations, however the MMI was IC and occurring in a populated area made it significant from an engineering standpoint. Until the San Fernando, Northridge and Loma Prieta earthquakes, the shock was second only in destruction to the San Francisco earthquake of 1906. Estimated loss of life was 120, higher than in any other U.S. earthquake other than the 1906 San Francisco event. Most of the loss of life was suffered by people being hit by falling debris from building cornices and parapets as they tried to leave shaking buildings. The duration of severe shaking was only about 20 seconds.

Most schools in the area were built of masonry with exterior brick covering hollow clay tile. Roofs and supported floors were wood. The destruction of this type of construction was the most spectacular. Fortunately, the earthquake occurred after school hours and a catastrophic situation was averted. However, the destruction was so extensive that the California legislature passed the "Field Law" on Apr. 10, 1933 requiring all new public schools to be highly earthquake resistant. Structures built under this law have performed excellently in subsequent shocks. Fortunately there was no major fire following the quake, but the fire department did suffer severe damage to all its fire stations and fire-alarm systems. The water mains had numerous breaks, most occurring in sand, silt or fill. Water in reservoirs fell dangerously low but never gave out. Ten gas fires were reported during the night of March 10-11, but none resulted in major losses.

3 11 2 9 0 1933 33.750 -118.083 0 5.0 0 Long Beach, California

3 11 2 30 0 1933 33.750 -118.083 0 5.1 0 Long Beach, California

3 11 3 23 0 1933 33.750 -118.083 0 5.0 0 Long Beach, California

3 11 5 10 22 1933 33.700 -118.066 16 5.1 0 Long Beach, California

3 11 5 18 4 1933 33.566 -117.983 16 5.2 0 Long Beach, California

3 11 6 58 3 1933 33.683 -118.050 0 5.5 0 Long Beach, California

3 11 8 54 57 1933 33.700 -118.066 16 5.1 0 Long Beach, California

3 11 9 10 0 1933 33.750 -118.083 0 5.1 0 Long Beach, California

3 11 14 25 0 1933 33.850 -118.266 16 5.0 0 Long Beach, California

3 11 3 12 48 1957 50.937 -177.202 33 6.9 0 Andreanof Islands, Alaska

3 11 3 35 7 1957 50.723 -176.930 33 6.2 0 Andreanof Islands, Alaska

3 11 3 55 29 1957 50.106 -176.832 33 6.1 0 Andreanof Islands, Alaska

3 11 7 8 7 1957 51.197 -177.214 33 6.0 0 Andreanof Islands, Alaska

3 11 9 58 44 1957 52.584 -169.237 33 7.0 1 Fox Islands, Alaska

3 11 14 55 26 1957 51.411 -178.544 33 7.1 1 Andreanof Islands, Alaska

3 11 15 36 0 1957 51.247 -179.027 30 6.5 0 Andreanof Islands, Alaska

3 11 14 5 54 1965 53.100 -161.900 12 5.0 16 Unimak Islands, Alaska

3 11 22 38 32 1970 57.390 -153.970 16 6.5 314 Southern Alaska

A wall cracked in Sitkinik Island in the Kodiak area.

3 11 15 25 46 1971 59.350 -146.590 18 5.1 82 Southern Alaska

Felt with intensity II on Middleton Island.

3 11 12 17 51 1977 44.820 -111.479 5 5.2 26 Yellowstone, Montana

3 11 23 57 46 1978 32.290 -115.081 5 5.0 33 Baja California

Slight damage at Yuma, Arizona and Mexicali, Mexico. Also felt at Imperial, CA.

3 11 3 47 5 1980 52.240 -169.119 38 5.1 229 Fox Islands, Alaska

3 11 6 16 33 1991 50.810 -179.210 47 5.4 0 Andreanof Islands, Alaska

3 11 6 10 18 1996 54.231 -166.087 5 5.1 71 Fox Islands, Alaska

Felt with intensity IV on Akutan.

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in

recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 10 0 0 0 1681 -18.500 -70.350 0 7.3 0 Southern Peru

Felt with intensity X in the epicentral area.

3 10 15 0 0 1763 41.000 142.000 0 7.3 0 Hokkaido, Japan

3 10 21 57 29 1951 -15.000 167.500 130 7.2 14 Vanuatu

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 10 11 21 20 1922 35.750 -120.250 0 6.5 0 Central California

One of the most noteworthy earthquake in the U.S. on March 10 occurred as a Mw 6.5 in the Parkfield, California region. Houses were damaged severely along the San Andreas fault zone in Monterey and San Luis Obispo Counties. Chimneys fell at Parkfield and in southern Cholame Valley. One house was jolted from foundations and another was twisted into two parts. A water tank was knowed down on a ranch and oil pipelines broke between Shandon and Antelope, CA. There were 3 breaks in the Producers Transportation Line, one close to a 1934 bread in a nearby oil pipeline. A ground crack 15-30 cm wide and about 800 m long was observed in Cholame Valley but smaller cracks formed throughout the San Andreas fault zone. This was the earliest Parkfield shock for which seismograms exist. A comparison of the Berkeley recordings implied that the 1922 epicenter was located 6 km NW of the 1934 epicenter. Later studies suggested that the magnitude of this quake was identical to that of June 8, 1934.

3 10 15 4 50 1926 66.500 -130.000 0 5.0 0 Northern Alaska

3 10 3 28 53 1931 40.000 -125.000 0 5.6 0 Off Coast No. California

3 10 3 32 0 1931 41.000 -125.000 0 5.6 0 Off Coast No. California

3 10 18 1 53 1940 37.389 -114.937 8 5.0 0 Nevada

3 10 3 9 6 1957 51.684 -174.513 33 6.6 0 Andreanof Islands

Aftershocks of the Aleutian Island earthquake of 1957 were the strongest events recorded in the U.S. or Canada on this date.

3 10 11 20 46 1957 51.881 -170.862 33 6.3 0 Andreanof Islands

3 10 12 36 6 1957 51.300 -170.700 33 6.0 0 Andreanof Islands

3 10 12 45 38 1957 50.504 -176.934 33 6.0 0 Andreanof Islands

3 10 13 28 37 1957 51.348 -178.713 30 6.2 0 Andreanof Islands

3 10 15 26 24 1957 52.200 -172.400 33 6.5 0 Andreanof Islands

3 10 16 37 54 1957 51.663 -173.312 33 6.0 0 Andreanof Islands

3 10 1 26 4 1963 56.300 -153.600 29 5.1 50 Alaska Peninsula

3 10 21 52 58 1965 56.300 -155.600 33 5.0 20 Alaska Peninsula

3 10 3 49 25 1968 52.080 -177.320 7 5.4 180 Andreanof Islands

3 10 15 38 26 1971 49.348 -127.461 8 5.0 66 Vancouver Island, B.C.

3 10 6 30 1 1976 51.143 -179.115 53 5.0 125 Andreanof Islands

3 10 11 7 16 1979 51.560 -173.290 26 5.0 224 Andreanof Islands

3 10 14 3 36 1983 62.894 -149.685 90 5.2 30 Southern Alaska

Felt at Fairbanks and Ester with intensity III.

3 10 13 30 30 1985 66.122 -150.141 10 5.5 221

Felt at Fairbanks.

3 10 7 43 51 1987 51.772 -175.261 60 5.0 66 Andreanof Islands

Felt with intensity IV at Adak.

3 10 4 16 32 1988 59.431 -144.566 10 5.4 225 Gulf of Alaska

3 10 14 25 15 1988 57.290 -143.530 3 5.1 0 Gulf of Alaska

3 10 10 38 18 1989 56.120 -153.850 50 5.3 0 Alaska Peninsula

3 10 2 10 54 1990 60.240 -152.180 44 5.3 0 Southern Alaska

TODAY IN SEISMIC HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 9 18 5 27 1928 -2.500 88.500 60 8.1 33 South of Sumatra

Since this area is unpopulated, no damage occurred. There is no record of a tsunami with this event, although it is likely that one was produced.

3 9 3 48 50 1931 40.500 142.500 60 7.7 19 Hokkaido, Japan

On March 9, 1931 and again on March 9, 1952 large earthquakes occurred off the coast of northern Japan/Hokkaido of Ms 7.7 and 7.3 respectively. Neither of these events is known to have inflicted great damage on the region.

3 9 9 48 55 1943 -60.000 -27.000 0 7.3 0 South Sandwich Islands

3 9 22 12 58 1944 44.000 84.000 60 7.2 28 Central China

3 9 17 3 47 1952 41.700 143.500 40 7.3 202 Hokkaido, Japan

3 9 14 22 32 1957 51.477 -175.720 33 8.6 1 Andreanof Islands

By far the largest earthquake to occur on March 9 occurred in 1957 in the Central Aleutian Islands. This was part of an 28 to 29-year recurrence interval in great earthquakes (see history note from March 7, 2003). Large or great earthquakes have occurred from the Fox Isl. to the Central Andreanoff Islands in the years 1872, 1901, 1929, 1957, and 1986. The largest of these was the event on March 9 which ruptured the Aleutians arc from the Fox Islands to the western Andreanoffs, a rupture length of more than 1,000 km from 160W to 180W. After a few preliminary shocks in January and February, two of which were important (Ml 6.4 and 6.5 on Jan 2, 1957). The great earthquake occurred on March 9. Over 600 strong aftershocks were recorded including at least 6 of Ms>=7. It should be noted that the large number of shocks recorded are not, strictly speaking, aftershocks, for the epicenters are spread over a huge area 200 km wide by about 1,000 km long covering the entire central portion of the Aleutians. Thus energy was not released always at the same point, but sometimes at one, sometimes at another, along the seismic zone. The mainshock caused a tsunami which spread across the Pacific and reached the Hawaiian Islands and then northern Japan. Thanks to a warning system set up in the United States to prevent a repetition of tsunami catastrophes like the one on 1 April, 1946, the people of Hawaii living along the coast were evacuated in time. However, there was important material damage, approximately $3 million on Oahu and Kauai. In Japan the waves were about 10 feet (3 meters) high and submerged several villages on the island of Hokkaido, though fortunately without loss of life. A forty-foot wall of water smashed into the coastline at Scotch Cap, Fox Islands. At Sand Bay, Alaska a 26-foot wave washed away many buildings and did extensive damage to oil lines. At Adak, 15-foot wide cracks appeared in the road and two bridges were destroyed. At Umnak the earthquake destroyed part of the dock, flipping the piling on the road like matches. A cement mixer was turned upside down and other equipment scattered about. Mount Vsevidof, on Umnak, dormant for 200 years erupted. Other volcanic activity was reported on the Alaska Peninsula where Mount Trident was observed sending up smoke and steam.

3 9 20 39 17 1957 52.558 -169.650 33 7.2 1 Fox Islands

3 9 14 27 57 1977 41.667 131.417 600 7.2 0 Sea of Japan

3 9 22 3 2 1981 -2.120 -80.231 63 7.9 30 Ecuador

3 9 23 28 7 1994 -18.039 -178.413 563 7.6 655 Tonga/Fiji

Felt at Suva and Lautoka on Viti Levu, Fiji Islands.

TODAY IN SEISMIC HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 9 5 44 36 1937 40.470 -84.280 3 5.0 0 Ohio

An earthquake at Anna, western Ohio where chimneys fell. In a church organ pipes were twisted. Churches and schools developed cracks. Felt as far as Chicago, Milwaukee, Toronto, Canada. Also felt in Kentucky, Michigan, Missouri, West Virginia and Pennsylvania. A loud earthquake noise was heard.

3 9 12 28 38 1949 36.017 -121.483 0 5.2 0 Central California

This event occured near Hollister where considerable damage occurred. Structural damage included fallen chimneys, cracked walls, broken windows and sprung elevator shafts. Many well-built businesses and homes suffered considerable damage. Many stores closed because of damaged good on the floor. All pendulum clocks stopped.

3 9 20 0 17 1952 59.110 -136.680 0 6.0 87 SE Alaska

Felt along the Alaska-Canada border. Felt strongly at Juneau, AK. Windows cracked and doors rattled. Felt also in Angoon and Sitka.

3 9 0 32 40 1956 31.750 -115.916 16 5.0 0 Baja California

3 9 14 22 28 1957 51.300 -175.800 33 8.6 0 Andreanof Islands

3 9 17 10 19 1957 51.619 -172.977 33 6.3 0 Andreanof Islands

3 9 19 37 37 1957 51.688 -173.913 33 6.0 0 Andreanof Islands

3 9 20 39 17 1957 52.558 -169.650 33 7.2 1 Fox Islands

3 9 14 2 10 1966 27.700 -114.900 3 5.5 29 Gulf of California

3 9 21 23 9 1966 35.400 -118.400 0 5.0 0 Central California

3 9 14 8 5 1985 66.219 -149.981 12 6.1 466 Northern Alaska

Felt with maximum intensity V at Bettles and Fairbanks. Felt with lesser intensity at Alyeska Pump Station Six, Ester, Manley Hot Springs. Also felt at Nenana, Wasilla and Willow.

3 9 14 16 26 1985 66.280 -150.223 10 5.1 139 Northern Alaska

Felt at Bettles, Alyeska Pump Station Six and Fairbanks.

3 9 22 34 38 1985 64.900 -150.900 0 5.0 0 Central Alaska

3 9 1 55 18 1986 51.300 -169.300 0 5.0 0 Fox Islands, Alaska

3 9 13 49 28 1986 54.249 -167.996 35 5.5 252 Fox Islands, Alaska

Felt at Unalaska and Dutch Harbor.

3 9 1 25 1 1989 52.020 -170.050 52 5.1 0 Andreanof Islands, Alaska

3 9 12 34 1 1990 60.407 -152.491 98 5.1 273 Southern Alaska

3 9 17 3 21 1990 63.736 -152.487 15 5.1 112 Southern Alaska

3 9 4 50 45 1997 51.200 -178.000 33 5.1 0 Andreanof Islands

Felt with intensity III at Adak.

3 9 14 33 24 1997 66.300 -136.000 10 5.1 0 Yukon Territory, Canada

3 9 17 48 43 1999 43.454 -127.074 10 5.2 213 Off coast of Oregon

3 9 7 10 21 2001 64.220 -130.920 1 5.2 153 Yukon/NW Territories, Canada

TODAY IN SEISMIC HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 8 0 0 0 1812 43.700 83.000 0 7.5 0 China

No damage or deaths were recorded, however it is quite likely that they occurred.

3 8 15 29 43 1915 39.000 142.000 60 7.0 19 Hokkaido, Japan

3 8 12 21 13 1957 39.300 22.600 33 7.0 0 Greece

This event and a foreshock caused moderate property damage in Larisa and Magnesia provinces while killing two and leaving many injured.

3 8 16 33 38 1960 -16.500 168.500 250 7.2 14 Vanuatu

Felt at Port Vila.

3 8 22 12 10 1980 -22.673 171.357 38 7.1 99 Loyalty Islands

3 8 11 36 29 1991 60.900 167.080 32 7.0 44 Siberia

This is the largest earthquake ever located in this area of eastern Siberia.

3 8 12 25 49 1999 52.056 159.520 57 7.0 430 Kamchatka

Felt with intensity V at Petropavlovsk and Kamchatskiy. Also felt at Severo- Kurilsk and Paramushir.

TODAY IN SEISMIC HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 8 4 29 30 1932 51.500 -178.000 25 6.0 0 Andreanof Islands

Felt at Adak.

3 8 0 14 16 1963 76.600 -94.330 33 5.7 0 Nunavut, Canada

3 8 1 36 0 1963 44.800 -110.200 0 5.0 0 Yellowstone, Wyoming

Plaster cracked and broke at Canyon, Yellowstone National Park. Cracks appeared in walls and ceilings of some homes.

3 8 18 52 14 1970 55.041 -116.623 9 5.1 29 Alberta

Felt in northwest Alberta. The first earthquake instrumentally located in this region.

3 8 5 20 34 1975 79.820 -94.070 18 5.2 110 Nunavut, Canada

3 8 2 28 47 1976 51.252 -178.049 49 5.0 105 Andreanof Islands

Felt with intensity III at Adak.

3 8 8 13 23 1987 52.600 -166.000 0 5.3 0 Fox Islands

3 8 7 25 33 1989 51.236 -179.016 43 5.0 161 Andreanof Islands

Felt with intensity IV at Adak.

3 8 15 36 59 1989 51.718 -175.249 65 5.0 97 Andreanof Islands

Felt with intensity IV at Adak.

3 8 9 47 44 1990 58.507 -153.078 55 5.9 595 Southern Alaska

The largest earthquake to occur in the U.S. or Canada on March 8 was a Mb 6.2 in the Kodiak Island area of Alaska in 1990. This event was felt (IV) at Kodiak, Larsen Bay and Port Lions and with lesser effects at Homer, Pedro Bay and Seldovia. The second largest earthquake in the U.S. on this date occurred in the same Kodiak location exactly 10 years later with Ms 5.6.

3 8 3 43 4 1992 40.228 -124.290 13 5.3 291 Off Coast of Oregon

3 8 14 20 58 2000 57.407 -154.266 46 5.6 542 Alaska Peninsula

Felt with maximum intensity IV on Kodiak.

3 8 23 7 13 2000 62.307 -151.370 90 5.4 410 Southern Alaska

Felt with maximum intensity V at Talkeetna. Also felt from Anchorage and Fairbanks.

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 7 15 0 0 1766 40.070 140.050 0 7.3 0 Northern Honshu, Japan

This earthquake killed 1334 people add did extreme damage in the Hirosaki area of northern Japan/Hokkaido. and at Oshiu, Aeomori and Tsuruga.

3 7 22 0 0 1829 51.400 104.100 40 7.5 0 Lake Baykal

Felt with intensity X at Lake Baykal.

3 7 0 55 0 1899 34.100 136.100 60 7.0 0 Central Japan

3 7 1 34 39 1929 51.000 -170.000 60 8.6 1 Fox Islands

Felt with intensity V in the Fox Islands. A tsunami was generated. At Mw 8.6, the earthquake on March 7, 1929 in the Fox Islands, Aleutians was one of the largest ever to hit the U.S. or Canada. This earthquake was felt aboard a number of ships at sea and at Dutch Harbor in the Aleutian Islands. Two Japanese ships were near the Island of Four Mountains. They reported shocks as severe and lasting nearly a minute. The steamer Shihara Maru reported that strong vibrations caused the belief that the ship had struck bottom at 41.2N 171.3W. The Yokohama Maru felt the earthquake strongly at 51.5N 169.5W and the President Madison felt the shock at 50N 165W. A small tsunami was generated and observed at Hilo Hawaii, however no damage occurred from this earthquake.

3 7 8 3 0 1950 -8.000 -71.000 550 8.6 0 Central Peru

This Peru quake occurred at 550 km depth and did little damage to surface facilities, although it was felt with MMI V along the Peru-Brazil border.

3 7 10 10 39 1961 -28.300 -175.700 43 7.5 12 Tonga

3 7 11 1 5 1962 19.200 145.100 685 7.0 81 Northern Mariana Islands

3 7 2 48 49 1978 32.133 137.733 440 7.6 0 Southern Honshu, Japan

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 7 1 34 39 1929 51.000 -170.000 60 8.6 1 Fox Islands

3 7 6 9 18 1944 44.700 -129.000 0 5.4 0 Off Coast of Oregon

3 7 6 50 0 1949 40.749 -111.849 0 5.0 6 Utah

The most damaging earthquake in the western U.S. to fall on March 7 occurred in 1949 near Salt Lake City, Utah. This sharp local event (Mb 5.0) broke a pipeline, cracked walls and broke windows at Salt Lake City. The shock, located on the Wasatch Fault, also moved furniture and caused dishes to fall from shelves.

3 7 23 53 26 1963 44.520 -122.440 33 5.4 0 Oregon

Felt from Portland to Eugene and along the coastal areas. At West Salem plaster cracked and dishes broke.

3 7 9 43 20 1976 44.432 -130.001 33 5.2 41 Vancouver, B.C.

3 7 20 51 0 1982 35.750 -117.767 2 5.0 9 Central California

Felt at China Lake, Inyokern and Ridgecrest.

3 7 0 36 47 1998 36.076 -117.618 2 5.0 137 Central California

Felt at Death Valley Junction, CA and at Amargosa Valley, NV.

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 6 11 3 42 1913 30.000 83.000 60 7.3 26 Xizang, China

3 6 2 15 57 1966 31.600 80.500 44 7.0 0 Xizang, Ghina

3 6 2 17 20 1984 29.338 139.205 452 7.9 0 Izu Islands, Japan

One person was killed and one injured. Felt with maximum intensity IV on Honshu.

3 6 4 10 42 1987 0.151 -77.821 10 7.0 344 Ecuador

This event may have been triggered from an earthquake off northern Chile about 12 hours earlier. The Ecuador earthquake killed about 1,000 and left 4,000 missing and presumed dead along with an additional 20,000 homeless. Extensive damage, landslides, and ground cracks were observed in Napa province and in the Guilo-Tulcan area, Ecuador. About 27 km of the oil pipeline in Ecuador between Lago Agria and Balao, were destroyed or badly damaged. Landslides occurred in the Pasto-Macoa area, Colombia. The earthquake was felt strongly in many parts of Ecuador and Colombia and in southwestern Colombia to northern Peru.

3 6 22 35 38 1988 56.953 -143.032 10 7.6 699 Southern Alaska

Felt with maximum intensity in the Anchorage, Homer, Juneau, Sitka and Valdez areas with intensity V. Also felt with intensity V at Whitehorse, Yukon Territory, Canada. Some damage was done to ships. Also felt at Kodiak, Craig and Ketchikan. A tsunami was generated with maximum height 38 cm at Yakutat.

3 6 3 5 50 1993 -10.972 164.181 20 7.2 304 Solomon Islands

Felt with intensity III at Honiara.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 6 17 3 0 1893 46.000 -119.000 0 5.3 0 Oregon

Damage to buildings at Umatilla, Oregon.

3 6 20 9 8 1944 44.500 -129.000 0 5.8 0 Off Coast of Oregon

3 6 23 16 30 1944 45.000 -129.000 0 5.7 0 Off Coast of Oregon

3 6 21 8 50 1965 37.400 -91.100 18 5.3 16 Illinois

3 6 22 19 33 1973 27.540 -112.451 33 5.1 45 Gulf of California

3 6 9 2 22 1975 58.739 -154.556 89 5.7 29 Alaska Peninsula

3 6 3 41 36 1986 56.245 -153.638 33 5.1 177 Alaska Peninsula

3 6 4 8 17 1986 56.252 -153.647 23 5.2 272 Alaska Peninsula

3 6 16 54 49 1987 50.800 -179.100 33 5.2 0 Andreanof Islands

3 6 22 35 38 1988 56.953 -143.032 10 7.6 699 Southern Alaska

3 6 23 5 54 1988 57.071 -143.061 10 5.1 48 Southern Alaska

3 6 23 14 36 1988 57.741 -142.937 10 6.1 405 Southern Alaska

3 6 19 19 24 1989 52.564 -168.629 33 5.0 23 Fox Islands

3 6 5 47 40 1998 36.067 -117.638 2 5.2 133 Central California

Felt at Fresno, Ivanhoe, Ridgecrest and Visalia, CA. Also felt in western Nevada at Beatty.

TODAY IN EARTHQUAKE HISTORY

GLOBAL

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 4 5 5 0 1896 37.000 76.000 40 7.1 0 Tajikistan

3 4 23 17 30 1905 -4.000 149.000 60 7.2 16 New Guinea

3 4 13 7 38 1922 53.100 158.300 220 7.4 78 Kamchatka

3 4 10 7 42 1924 9.800 -84.000 60 7.0 6 Costa Rica

3 4 10 19 25 1949 36.000 70.500 230 7.5 53 Hindu Kush

This earthquake did considerable damage in West Punjab and was felt at Intensity VIII in the Hindu Kush region.

3 4 1 22 46 1952 41.900 143.700 50 8.3 218 Hokkaido, Japan

3 4 6 3 0 1952 42.500 143.000 50 8.3 0 Hokkaido, Japan

This earthquake measuring Mw 8.6 killed 31 and injured 572. The number of houses destroyed was 713 while nearly 6,000 were damaged. 28 were and warehouses were destroyed in Kushiro. 3 were killed and 309 houses destroyed at Kiratapu. 1,000 houses were destroyed or damaged at Shiranuka and 400 houses were destroyed at Hamanka. 4 schools collapsed at Sapporo. The earthquake triggered a 10-foot tsunami and was followed by and aftershock of Ms 7.1 on March 9 which injured 17 more and destroyed 113 additional houses. The tsunami affected areas around the Pacific including Crescent City, CA where there was a 36 cm tsunami recorded. Due to the efficient warning system in Japan at the time, however, no fatalities were caused by the tsunami. The March 4 earthquake off Hokkaido was appears to have begun a chain reaction of great earthquakes in the Kuril chain. This can happen when a segment ruptures, putting strain on the adjoining segments. The following is a quote from "Earthquakes and the Deep structure of the South Kuril Arc" by S.A. Fedotov, A.M. Badasarova, I.P Kuzin and R.Z. Tarakanov, 1971

NOAA/Dept of Commerce. "The earthquake of 4 March 1952 marked the beginning of a series of disastrous Kurile-Kamchatka earthquakes in March and November 1952

[Kamchatka Mw 8.3], November 1958 [Mw 8.2 in the next segment of the Kurile arc to the north - the Etorofu quake], May 1959 [Kamchatka Mw 8.0]; and October 1963 [Mw 8.2 in the next segment of the Kuril Arc north of the Etorofu quake]. These were probably interrelated events of a single high-seismicity period." These were the strongest earthquakes in the southern Kurils since 1843. The area has an average interevent occurrence interval of great shocks of about 140 +/- 40 years. At Mw>=7.5, the interval is around 40+/- 5 years. The largest earthquakes off Hokkaido in 1910 (Ms 7.5) then 42 years later in 1952 (Mw 8.6) and then again 42 years later in 1994 (Mw 8.1).

3 4 17 58 6 1967 39.200 24.600 60 7.1 0 Greece

Forty houses damaged at Skyros Island. Felt at Athens, Greece, Sofia, Bulgaria and in western Turkey.

3 4 19 21 54 1977 45.772 26.761 94 7.2 301 Romania

The most damaging recent earthquake in Romania occurred on March 4, 1977 and was centered near today's epicenter. It killed about 1500 and injured more than 10,000 causing extensive damage in Bucharest. Up to 20 were also killed in Bulgaria. Injuries and damage were also reported from Yugoslavia and Moldavia. The quake was felt from Rome to Moscow and from Sweden to Turkey.

3 4 8 52 2 1999 5.397 121.937 33 7.1 251 Mindanao, Philippines

Minor damage occurred at Zamboanga, Mindanao with maximum intensity V. Also felt at Basilan, Cagayande Oro and in much of Mindanao, Panay and Negros, Philippines.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 4 2 15 56 1960 50.500 -177.000 33 5.9 0 Andreanof Islands, Alaska

3 4 11 40 20 1962 67.340 -172.070 0 5.5 29 Andreanof Islands, Alaska

3 4 18 17 34 1974 43.541 -126.892 33 5.0 21 Off coast of Oregon

3 4 8 47 15 1986 51.457 -167.052 38 5.6 346 Fox Islands, Alaska

3 4 10 30 25 1986 51.649 -166.883 33 5.1 79 Fox Islands, Alaska

3 4 0 42 20 1991 51.090 -179.040 33 5.1 0 Andreanof Islands, Alaska

3 4 12 26 55 1999 54.849 -164.233 33 5.5 183 Fox Islands, Alaska

Felt at Cold Bay.

3 4 2 33 26 2001 57.788 -156.571 134 5.0 87 Alaska Peninsula.

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 3 1 5 9 1927 -6.000 122.000 60 7.0 24 Ceram

3 3 0 0 0 1933 39.100 144.700 0 8.3 0 Off Northern Honshu, Japan

This event, often referred as the great Sanriki earthquake and tsunami killed more than 3,000 people and caused severe damage throughout the region of the northeast coastline of Honshu. A giant tsunami was triggered by the earthquake which occurred offshore in the trench. The Bulletin of the Earthquake Research Institute, University of Tokyo published an entire volumne on the earthquake and tsunami (Suppl. Vol. 1, March 1934). Some interesting observations were also made relating to earthquake and tsunami lights during this event (see above).

3 3 9 9 54 1948 18.500 119.000 60 7.2 22 Northern Philippines

3 3 11 27 59 1953 -20.600 169.000 33 7.0 0 Loyalty Islands

3 3 6 2 56 1954 -5.700 142.700 33 7.0 0 Papua New Guinea

3 3 22 47 7 1985 -33.135 -71.871 33 7.8 146 Central Chile

This earthquake (Ms 7.8) injured at least 2,500 people, killed about 175 and did extensive damage throughout the cities of Valparaiso, Santiago and San Antonio, Chile. The maximum felt intensity occurred at MMI VIII in the Valparaiso, Chile area. Liquefaction occurred along dune sands in the San Antonio area. There were reports of extensive ground cracking and subsidence throughout most of the region. It was felt as far away as Buenos Aires, Argentina and Sao Paulo, Brazil. A tsunami was generated which was one of the few Pacific-wide events in the past 20 years, reaching Alaska, Hawaii and the islands of Japan. The earthquake was followed less than an hour later by a Ms 7.0 aftershock.

3 3 23 38 31 1985 -32.738 -71.215 33 7.0 127 Central Chile

Felt with intensity IV at Santiago, Chile.

3 3 12 16 27 1990 -22.071 175.164 33 7.4 666 Fiji

3 3 12 08 20 2002 36.502 70.482 226 7.4 138 Hindu Kush

At least 150 people were killed and up to 400 homes damaged or destroyed in a landslide that dammed and flooded Surkundara Valley, Samangan Province. At least 13 killed at Kabul and Rostaq and an additional 3 at Bajaur, Pakistan. Felt throughout Pakistan, Afghanistan and into India, Uzbekistan, Xinjiang.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 3 7 45 0 1901 36.080 -120.570 0 5.5 0 Central California

Hundreds of cracks appeared in the ground in Monterey County with length up to hundreds of length. Vertical displacement up to 1 foot in Stone Canyon. Chimneys fell at Parkfield and Stone Canyon. Damage was also observed at Estrella, Paso Robles, San Miguel and Adlaida.

3 3 12 0 0 1909 39.250 -121.000 0 5.0 0 Northern California

Located in noarthcentral Sierra. Buildings and dishes were shaken at Nevada City. No damage reported but people rushed from homes. Felt at Downieville, Iowa Hill, Magalia, Pilot Creek and as far as Sacramento.

3 3 16 0 0 1917 40.830 -124.170 0 5.0 0 Off coast of No. Calif.

Felt with intensity VI+ at Table Bluff, Humboldt County. Broke mantle in the lighthouse and threw the pedestal out of alignment. Woke people.

3 3 1 3 24 1942 34.000 -115.750 0 5.0 0 Southern California

Felt at Coachella Hemet and Twentynine Palms. Strongest at Twentynine Palms where objects were shifted.

3 3 20 46 10 1954 61.600 -146.400 64 6.2 0 Central Alaska

This earthquake of Ms 6.2 tumbled stock from local grocery stores. The weather Bureau Office in Anchorage reported movement of bookcases against the wall, and at the peak of the quake there appeared to be a rotating or wobbling of the building which was enough to cause persons in the next room to stand in the doorway.

3 3 18 23 13 1956 31.583 -115.666 16 5.1 0 Southern California

3 3 17 30 13 1963 36.700 -90.100 18 5.5 0 New Madrid, Missouri

The most unusual earthquake on this date in the U.S. occurred in the New Madrid Seismic zone in Missouri with Ms 5.5. This was the last large earthquake felt in this zone, although more are expected in the future. The earthquake was felt from Arkansas to Indiana and from Kansas to Mississippi. Plaster cracked and fell; bricks fell from chimneys and cracks formed in walls, foundations, sidewalks and chimneys. In Poplar Bluff MO. water lines were damaged and many basements were flooded. Great earthquakes occur with interevent times of about 500+ years in this area as shown by trenching research.

3 3 20 2 34 1964 40.370 -125.000 33 5.0 31 Off coast of No. California

3 3 14 46 31 1971 25.913 -109.930 34 5.4 64 Northern Mexico

3 3 3 0 3 1973 41.810 -118.480 0 5.3 69 Nevada

3 3 11 37 36 1974 41.700 -125.690 0 5.1 52 Off coast of No. California

3 3 14 17 2 1980 40.371 -125.059 5 5.0 158 Off coast of No. California

Felt with intensity IV at Loleta. Also felt at Rio Dell, Miranda, Scotia, Honeydew and Eureka.

3 3 13 38 40 1985 59.880 -152.750 33 5.5 0 Southern Alaska

3 3 0 6 4 1987 52.713 -174.613 162 5.0 157 Andreanof Islands

3 3 7 3 14 1989 34.617 -127.890 10 5.4 36 Off coast of So. California

This Mw 5.4 earthquake had it's epicenter at 34.6N 127.9W - the largest earthquake ever recorded this far off shore from Southern California. This location is about 800 km due west of Los Angeles.

3 3 8 18 21 1993 50.930 -175.550 38 5.0 8 Andreanof Islands

3 3 23 44 36 1996 56.553 -152.354 33 5.2 291 Alaska Peninsula

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 2 6 15 15 1906 43.000 80.000 60 7.3 28 China

3 2 3 26 50 1919 -41.000 -73.500 40 7.2 9 Southern Chile

3 2 11 45 17 1919 -41.000 -73.500 40 7.3 9 Southern Chile

3 2 16 48 52 1923 6.500 124.000 60 7.2 22 Mindanao, Philippines

Felt violently at Cotabato. A tsunami was generated which hit the coasts of Rio Grande at Cotabato. Also felt in Cebu, Bohol and Negros Islands as far as 500 km from the epicenter.

3 2 2 18 34 1931 -22.000 172.000 110 7.1 14 Loyalty Islands

3 2 17 31 54 1933 39.233 144.517 10 8.9 0 Northern Honshu, Japan

This event, often referred as the great Sanriki earthquake and tsunami killed more than 3,000 people and caused severe damage throughout the region of the northeast coastline of Honshu. A giant tsunami was triggered by the earthquake which occurred offshore in the trench. The Bulletin of the Earthquake Research Institute, University of Tokyo published an entire volume on the earthquake and tsunami (Suppl. Vol. 1, March 1934). Some interesting observations were also made relating to earthquake and tsunami lights during this event (see above).

3 2 19 9 26 1947 -5.000 144.500 50 7.0 16 Papua New Guinea

3 2 12 29 39 1992 53.050 159.770 42 7.2 35 Kamchatka

Felt with intensity V at Petropavlovsk and Kamchatsky, Russia.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 2 21 5 0 1871 40.400 -124.200 0 6.2 0 Off Coast of No. California

Off the coast of Northern California, this was damaging as it knocked down nearly every chimney near Mattole, CA. The earthquake also ruined chimneys over other areas of northern California. At Eureka the earthquake shook down cornices and damage to the lightkeeper's house was observed at Mendocino.

3 2 17 14 36 1932 40.200 -127.000 1 5.6 0 Off Coast of No. California

3 2 17 40 48 1932 43.000 -131.000 0 6.0 0 Off Coast of Oregon

3 2 14 48 0 1937 40.700 -84.000 0 5.3 0 Ohio

One of the largest earthquakes to be recorded in Ohio. Damage occurred in western Ohio near Anna county consisting of fallen chimneys and plaster and cracked walls. The public school at Anna was damaged so badly it was declared unsafe. Two churches also sustained damage. Plaster fell in buildings as far away as Indianapolis, IN and Fort Wayne, IN. The shock was felt in Indiana, Kentucky, Michigan, and West Virginia and Ontario, Canada. An aftershock occurred on March 9 which was larger than the March 2 event. This later event further damaged the schoolhouse and churches in Anna, OH. These events caused some wells to go dry and to increase the flow of water in other wells - water, oil and gas. This shock was felt from Chicago to Toronto and from Missouri to West Virginia (Ms 5.5).

3 2 15 59 1 1955 36.000 -120.930 0 5.1 0 Central California

Felt over an area of about 7000 sq. miles of west central California. Slightly felt with some damage at Adelaida where plaster cracked (intensity VI). Objects shifted. Maximum shaking at Indian Valley, San Ardo, San Lucas and Templeton.

3 2 11 56 23 1956 63.600 -149.300 79 5.5 0 Southern Alaska

Felt with maximum intensity IV at Fairbanks. OBjects fell and houses shook. Windows and dishes rattled. Also felt at College, McKinley Park, Summit and Talkeetna.

3 2 23 27 17 1959 36.983 -121.583 0 5.3 0 Central California

Felt over and area of about 8000 sq. mi. Damage including cracked plaster, broken windows and falling objects and merchandise. A minor earthslide occurred on the Chittenden Pass Road. Chimneys fell. Windowpanes broke in buildings at San Francisco. Maximum intensity VI.

3 2 3 14 45 1968 49.160 -129.250 33 5.1 109 Vancouver, B.C.

3 2 11 28 41 1973 41.810 -118.480 0 5.1 45 Nevada

3 2 14 41 40 1978 56.380 -158.340 83 5.4 91 Alaska Peninsula

3 2 9 34 49 1979 60.384 -140.775 28 5.3 216 SE Alaska

Felt at Cape Yakataga and Icy Bay Lumber Camp.

3 2 5 40 34 1986 51.066 178.616 20 5.4 0 Rat Islands

3 2 9 1 27 1986 61.896 -124.187 10 5.0 70 Alberta

3 2 20 42 29 1986 51.598 -176.780 55 5.1 167 Andreanof Islands

Felt at Adak.

3 2 17 39 22 1997 53.543 -166.593 57 5.5 298 Fox Islands

Felt with intensity IV at Unalaska. Also felt at Dutch Harbor.

TODAY IN EARTHQUAKE HISTORY

GLOBAL:

The following events of Mw>=7 have occurred on this date in recorded history:

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 1 2 19 20 1925 47.800 -69.800 0 7.0 34 Quebec

The earthquake at Mw 7.0 was the strongest to occur in the U.S. or Canada on March 1 (U.T). It occurred at 02:19 on March 1st (21:19 EST on Feb. 28). It was felt strongly over eastern Canada and the New England states. Tremors were felt as far south as Virginia and as far west as the Mississippi River. Damage was confined to a narrow belt, approximately twenty miles long, covering both sides of the St. Lawrence, somewhat less than a hundred miles below the city of Quebec.

3 1 21 45 25 1934 -40.000 -72.500 120 7.1 8 Southern Chile

3 1 1 12 28 1948 -3.000 127.500 60 7.9 23 Ceram

At Seram, Indonesia.

3 1 9 5 40 1958 -13.500 -76.500 0 7.0 0 Central Peru

3 1 16 49 13 1959 -0.500 134.500 100 7.0 16 Papua New Guinea

Slight damage at Manokwari where cracks and warping occurred in the harbor walls.

TODAY IN EARTHQUAKE HISTORY

U.S./CANADA

Following are events of Mb>=5 which have occurred in this region on this date.

MO DA HR MN SC YEAR LATIT LONGIT DEP MW LOCATION

3 1 2 19 0 1925 47.760 -69.850 8 6.6 0 Quebec

3 1 4 30 42 1925 47.800 -69.800 0 5.0 0 Quebec

3 1 7 31 13 1929 51.500 -130.700 0 6.1 0 Vancouver, B.C.

This event was felt but did not inflict any damage.

3 1 10 59 44 1935 40.300 -96.200 0 5.3 0 Nebraska

Windows cracked and broke at Tecumseh, Nebraska. Walls and plaster cracked. Damage also at Saint Mary. Also felt in Missouri, Kansas and Iowa.

3 1 4 43 1 1955 65.280 -132.810 15 6.6 170 Yukon, Canada

An Mw 6.6 in the Yukon late on Feb. 28 (March 1 UT), was felt throughout the Yukon and Northwest Territories. Light fixtures were seen swaying as far away as Northway, Alaska. This was one of the largest events recorded in the Yukon Territory.

3 1 0 25 58 1963 34.916 -118.966 14 5.0 0 Southern California

This event was felt over approximately 8,000 square miles of southern California where the maximum damage was near Taft where plaster cracked and cans and cereal boxes fell from shelves in grocery stores. The shock was felt for 40 seconds at Fort Tejon State Historical Monument.

3 1 22 16 35 1967 51.244 -179.267 79 5.3 85 Andreanof Islands

3 1 9 28 53 1972 40.463 -125.321 4 5.5 194 Off Coast No. California

Felt with intensity V along the coast of Northern California. Felt in Trinidad, Fort Bragg. Woke many at Ferndale, Honeydew and Rio Dell.

3 1 7 8 54 1979 60.628 -141.235 11 5.4 177 Eastern Alaska

Felt at Lake Yakataga.

3 1 7 35 20 1990 51.510 -175.370 27 5.0 0 Eastern Andreanof Is.

Felt at Adak.

3 1 13 25 37 1990 51.913 -176.018 70 5.2 132 Eastern Andreanof Is.

Felt at Adak.

3 1 16 7 1 1995 65.838 -135.050 10 5.0 101 Yukon Terr. Canada

3 1 23 5 14 2000 60.167 -145.887 20 5.5 406 Southern Alaska

Felt with maximum intensity IV at Cordova. Also felt at Anchorage and Valdez.

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