EXTERNAL FIELDS/EFFECTS
The geomagnetic field saw quiet conditions today. The AP level was 8. High latitudes also saw quiet with AP 7. Middle latitudes were also quiet with AP 6. This appears to conclude the strongest storm at high latitudes since A 88 on February 27, 2023 and 91 on September 4, 2022 with AP 64 on that date and is expected to reach levels higher than at planetary levels in the next day. This is likely to promote enhanced seismicity in the next several days ending the current global quiet seismicity.
The geomagnetic field is is expected to see unsettled conditions on March 27-28 with quiet returning on March 29. Solar activity is expected to be at low levels March 27-29 with a small chance (10%) of an M-class flare and 1% chance of an X-class flare. A proton storm is expected with 1% probability in this time period.
The maximum disturbance in the geomagnetic field today occurred with KP 3 at 05:00 UT, March 26, 2023.
The Wolf Sunspot number today was 125. Solar radio Flux 10.7 was 159 on March 26, 2023.
SOLAR FLARE ACTIVITY
Where applicable the strongest earthquakes associated with the largest flares
are listed. This may give some indication where SFE will be most like in the
near future.
Flare # START MAX END CLASS DATE Flux (Jm-2)
#------------------------------------------------------------------------------
400 0359 0406 0416 C2.6 (March 26, 2023) 2.5E-03
420 0442 0506 0520 C2.3 (March 26, 2023) 5.1E-03
540 1435 1442 1448 C1.3 (March 26, 2023) 7.5E-04
Honshu, Japan M 4.5 14:33 UT
Honshu, Japan M 4.9 15:04 UT
610 1658 1708 1717 C2.9 (March 26, 2023) 2.5E-03
Chile M 4.7 17:26 UT
660 2137 2141 2146 C1.1 (March 26, 2023) 5.9E-04
Java M 4.4 21:46 UT
AP INDICIES
JULY 2022
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
AP: 7 19 8 21 4 5 20 19 6 7 12 18 5 5 8
DATE: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
AP: 7 5 8 26 7 22 11 17 9 6 8 9 7 4 7 11
AUGUST 2022
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
AP: 8 9 8 6 6 4 24 31 19 11 16 7 10 7 6
DATE: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
AP: 5 31 26 20 14 14 7 4 3 5 5 14 7 14 13 13
SEPTEMBER 2022
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
AP: 9 8 25 64 32 20 14 19 13 12 9 9 4 9 6
DATE: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
AP: 4 5 11 11 8 5 6 12 13 7 4 24 5 7 13
OCTOBER 2022
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
AP: 3 12 24 16 14 18 15 12 25 10 7 6 5 15 18
DATE: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
AP: 16 6 6 5 7 8 27 16 8 5 5 9 16 26 12 11
NOVEMBER 2022
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
AP: 8 14 26 16 10 4 19 12 7 2 8 4 7 4 2
DATE: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
AP: 2 2 7 5 6 10 3 3 6 20 16 15 24 25 24
DECEMBER 2022
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
AP: 28 16 10 17 8 4 18 11 11 8 10 6 4 4 5
DATE: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
AP: 9 9 4 9 6 9 12 24 23 10 22 25 5 11 31 16
JANUARY 2023
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
AP: 14 8 7 21 8 4 6 8 5 7 9 9 12 11 30
DATE: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
AP: 14 6 15 7 6 17 9 7 4 7 11 9 9 5 5 9
FEBRUARY 2023
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
AP: 6 6 9 6 5 18 20 18 21 16 11 7 4 8 29
DATE: 16 17 18 19 20 21 22 23 24 25 26 27 28
AP: 24 6 6 7 8 17 6 22 6 10 26 94 28
MARCH 2023
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
AP: 8 9 22 15 22 15 11 8 17 11 7 8 3 17 29
DATE: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
AP: 8 7 8 10 13 8 17 60 66 15
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