Solar Flare WatchHome › Flare history › 1992
M7.8 solar flare on 1992-03-15
ClassM7.8NOAA report
Peak01:461992-03-15 UTC
Duration149 min
Peak flux7.8e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 11 / 2134 |
| Other M/X flares that day | 0 |
| M/X flares that month | 4 |
| Solar cycle | Cycle 22 |
| Position on disk | S14E29 |
| Active region | AR 7100 (6 flares) |
Compared with the strongest flares of 1992
X9.0
X3.9
X3.3
X1.8
X1.7
X1.7
X1.4
X1.3
X1.2
X1.0
M7.8
M7.6
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.
← X3.3 1992-02-27M5.6 1992-04-01 →
About this page
A M7.8 flare that began 1992-03-15 01:21 UTC; No. 11 of 2,134 C-class-or-larger flares in 1992.