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X1.4 solar flare on 1990-04-15
ClassX1.4NOAA report
Peak02:551990-04-15 UTC
Duration50 min
Peak flux1.4e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 288 / 491 |
| Rank in year | 12 / 2551 |
| Other M/X flares that day | 1 |
| M/X flares that month | 24 |
| Solar cycle | Cycle 22 |
| Position on disk | N32E57 |
| Active region | AR 6022 (18 flares) |
Compared with the strongest flares of 1990
X9.3
X5.5
X3.6
X3.4
X3.0
X2.4
X2.2
X1.9
X1.8
X1.7
X1.5
X1.4
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 11:47 | 11:51 | 26 | M1.0 | S15E61 | 6021 |
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.
← M7.1 1990-04-04X2.2 1990-04-16 →
About this page
A X1.4 flare that began 1990-04-15 02:55 UTC; No. 12 of 2,551 C-class-or-larger flares in 1990.