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Solar flares in September 1993
C-class58
M-class2
X-class0
LargestM1.81993-09-27
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| September 1992 | 129 | 33 | 2 | X1.7 |
| September 1993 | 58 | 2 | 0 | M1.8 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1993-09-27 | 12:04 | 12:12 | 14 | M1.8 | – | – |
| 1993-09-27 | 22:32 | 22:47 | 61 | M1.8 | N12E76 | 7590 |
| 1993-09-27 | 00:13 | 00:15 | 9 | C7.6 | S06W31 | 7585 |
| 1993-09-28 | 02:57 | 03:06 | 23 | C6.7 | N12E73 | 7590 |
| 1993-09-16 | 17:38 | 17:42 | 66 | C6.3 | S12E55 | 7581 |
| 1993-09-27 | 10:49 | 10:52 | 8 | C5.7 | N11E80 | 7590 |
| 1993-09-26 | 21:10 | 21:59 | 120 | C5.6 | – | – |
| 1993-09-26 | 23:35 | 23:39 | 9 | C4.1 | – | – |
| 1993-09-27 | 13:53 | 13:58 | 18 | C4.0 | N12E79 | 7590 |
| 1993-09-26 | 10:21 | 10:27 | 11 | C3.4 | – | – |
| 1993-09-26 | 17:26 | 17:26 | 4 | C3.4 | N15E90 | – |
| 1993-09-27 | 01:35 | 01:37 | 9 | C3.3 | N13E90 | 7500 |
| 1993-09-30 | 01:35 | 02:14 | 64 | C2.9 | – | – |
| 1993-09-30 | 19:32 | 19:36 | 8 | C2.9 | – | – |
| 1993-09-26 | 05:48 | 05:53 | 8 | C2.7 | – | – |
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
About this page
60 flares of class C or larger in September 1993; by M/X count it ranks 391 of 565 months.