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X2.1 solar flare on 2013-10-25
ClassX2.1NOAA report
Peak15:032013-10-25 UTC
Duration21 min
Peak flux2.1e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 193 / 491 |
| Rank in year | 5 / 1467 |
| Other M/X flares that day | 6 |
| M/X flares that month | 37 |
| Solar cycle | Cycle 24 |
Compared with the strongest flares of 2013
X3.3
X3.2
X2.8
X2.3
X2.1
X1.7
X1.7
X1.2
X1.1
X1.1
X1.0
X1.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 02:48 | 03:02 | 24 | M2.9 | – | – | |
| 07:53 | 08:01 | 16 | X1.7 | – | – | |
| 09:43 | 10:12 | 42 | M1.0 | S03E68 | 11882 | |
| 17:02 | 17:09 | 14 | M1.3 | – | – | |
| 19:05 | 19:21 | 19 | M2.3 | S06E66 | 11882 | |
| 20:54 | 20:58 | 19 | M1.9 | S07E64 | 11882 |
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.
← X1.7 2013-10-25X1.0 2013-10-28 →
About this page
A X2.1 flare that began 2013-10-25 14:51 UTC; No. 5 of 1,467 C-class-or-larger flares in 2013.