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X3.4 solar flare on 1990-05-10
ClassX3.4NOAA report
Peak19:301990-05-10 UTC
Duration70 min
Peak flux3.4e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 91 / 491 |
| Rank in year | 4 / 2551 |
| Other M/X flares that day | 2 |
| M/X flares that month | 36 |
| Solar cycle | Cycle 22 |
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 |
|---|---|---|---|---|---|---|
| 15:21 | 15:39 | 65 | M3.9 | – | – | |
| 23:50 | 23:57 | 42 | M2.1 | – | – |
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.
← X2.2 1990-04-16X2.4 1990-05-11 →
About this page
A X3.4 flare that began 1990-05-10 19:18 UTC; No. 4 of 2,551 C-class-or-larger flares in 1990.