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X2.5 solar flare on 1988-10-12
ClassX2.5NOAA report
Peak05:021988-10-12 UTC
Duration73 min
Peak flux2.5e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 147 / 491 |
| Rank in year | 4 / 1845 |
| Other M/X flares that day | 1 |
| M/X flares that month | 21 |
| Solar cycle | Cycle 22 |
| Position on disk | S20W66 |
| Active region | AR 5175 (14 flares) |
Compared with the strongest flares of 1988
X5.6
X4.7
X3.2
X2.5
X2.4
X1.6
X1.4
X1.4
X1.3
X1.2
X1.1
X1.1
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 12:07 | 12:12 | 9 | M1.4 | – | – |
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.
← X1.1 1988-10-03M6.4 1988-10-13 →
About this page
A X2.5 flare that began 1988-10-12 04:57 UTC; No. 4 of 1,845 C-class-or-larger flares in 1988.