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Solar flares in April 2002
C-class218
M-class16
X-class1
LargestX1.52002-04-21
Sunspot number194.9NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| April 2001 | 145 | 38 | 8 | X20.0 |
| April 2002 | 218 | 16 | 1 | X1.5 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2002-04-21 | 00:43 | 01:51 | 115 | X1.5 | S14W84 | 9906 |
| 2002-04-10 | 12:23 | 12:31 | 17 | M8.2 | N15W14 | 9893 |
| 2002-04-04 | 15:24 | 15:32 | 14 | M6.1 | – | – |
| 2002-04-12 | 17:31 | 18:02 | 46 | M4.0 | N21W26 | 9901 |
| 2002-04-14 | 23:34 | 00:14 | 51 | M3.7 | N19W60 | 9893 |
| 2002-04-17 | 07:46 | 08:24 | 131 | M2.6 | S14W34 | 9906 |
| 2002-04-16 | 12:53 | 13:19 | 37 | M2.5 | – | 9893 |
| 2002-04-09 | 00:38 | 00:42 | 12 | M2.1 | N19E46 | 9899 |
| 2002-04-24 | 21:46 | 21:56 | 15 | M1.7 | N09W49 | 9912 |
| 2002-04-10 | 18:48 | 19:07 | 27 | M1.6 | – | 9899 |
| 2002-04-04 | 10:41 | 10:48 | 13 | M1.4 | – | – |
| 2002-04-12 | 13:05 | 13:10 | 9 | M1.4 | – | – |
| 2002-04-14 | 03:21 | 03:51 | 48 | M1.4 | N22W45 | 9893 |
| 2002-04-30 | 08:17 | 08:22 | 10 | M1.3 | – | – |
| 2002-04-15 | 03:05 | 03:55 | 121 | M1.2 | S15W01 | 9906 |
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
235 flares of class C or larger in April 2002; by M/X count it ranks 178 of 565 months.