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Solar flares in April 2004
C-class56
M-class7
X-class0
LargestM2.42004-04-06
Sunspot number59.3NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| April 2003 | 124 | 14 | 0 | M7.0 |
| April 2004 | 56 | 7 | 0 | M2.4 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2004-04-06 | 12:30 | 13:28 | 76 | M2.4 | – | 10588 |
| 2004-04-25 | 05:02 | 05:37 | 40 | M2.2 | N15E37 | 10599 |
| 2004-04-05 | 05:37 | 05:55 | 36 | M1.7 | – | 10588 |
| 2004-04-23 | 11:41 | 11:50 | 11 | M1.5 | S08W90 | 10597 |
| 2004-04-15 | 16:37 | 16:44 | 11 | M1.2 | S15W38 | 10591 |
| 2004-04-22 | 02:03 | 02:19 | 21 | M1.2 | S07E18 | 10596 |
| 2004-04-23 | 21:02 | 21:12 | 12 | M1.1 | S08W90 | 10597 |
| 2004-04-11 | 03:54 | 04:19 | 41 | C9.6 | S16W46 | 10588 |
| 2004-04-25 | 01:38 | 01:44 | 11 | C9.0 | N15E40 | 10599 |
| 2004-04-08 | 09:53 | 10:19 | 54 | C7.4 | – | 10588 |
| 2004-04-23 | 07:43 | 07:56 | 18 | C6.1 | S07W90 | 10597 |
| 2004-04-23 | 11:59 | 12:03 | 6 | C5.1 | S07W90 | 10597 |
| 2004-04-25 | 10:06 | 10:15 | 17 | C5.0 | N15E35 | 10599 |
| 2004-04-23 | 17:21 | 17:31 | 13 | C4.8 | S08W90 | 10597 |
| 2004-04-19 | 18:20 | 18:30 | 20 | C4.7 | – | 10596 |
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
63 flares of class C or larger in April 2004; by M/X count it ranks 281 of 565 months.