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Solar flares in October 2010
C-class15
M-class1
X-class0
LargestM2.92010-10-16
Sunspot number35.0NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| October 2009 | 11 | 0 | 0 | C2.2 |
| October 2010 | 15 | 1 | 0 | M2.9 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2010-10-16 | 19:07 | 19:12 | 8 | M2.9 | S20W26 | 11112 |
| 2010-10-31 | 04:26 | 04:31 | 10 | C5.7 | – | 11117 |
| 2010-10-18 | 15:26 | 16:43 | 110 | C2.5 | – | 11112 |
| 2010-10-04 | 16:28 | 16:35 | 13 | C2.3 | N21W77 | 11109 |
| 2010-10-25 | 22:06 | 22:12 | 12 | C2.3 | – | 11117 |
| 2010-10-31 | 03:13 | 03:18 | 8 | C1.8 | N24W67 | 11117 |
| 2010-10-17 | 08:52 | 08:59 | 16 | C1.7 | S19W31 | 11112 |
| 2010-10-17 | 17:30 | 17:39 | 14 | C1.6 | S21W42 | 11112 |
| 2010-10-20 | 11:42 | 11:50 | 12 | C1.5 | S18W70 | 11112 |
| 2010-10-19 | 06:45 | 06:51 | 12 | C1.3 | S20W57 | 11112 |
| 2010-10-18 | 11:25 | 11:40 | 27 | C1.2 | – | 11112 |
| 2010-10-18 | 21:25 | 21:39 | 22 | C1.2 | – | – |
| 2010-10-27 | 16:59 | 17:04 | 9 | C1.2 | N18W25 | 11117 |
| 2010-10-19 | 09:24 | 10:14 | 87 | C1.1 | – | 11112 |
| 2010-10-26 | 01:06 | 01:13 | 13 | C1.1 | – | – |
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.
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About this page
16 flares of class C or larger in October 2010; by M/X count it ranks 434 of 565 months.