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M8.4 solar flare on 1989-03-15
ClassM8.4NOAA report
Peak16:531989-03-15 UTC
Duration116 min
Peak flux8.4e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 74 / 2608 |
| Other M/X flares that day | 3 |
| M/X flares that month | 100 |
| Solar cycle | Cycle 22 |
| Position on disk | N31W40 |
| Active region | AR 5395 (107 flares) |
Compared with the strongest flares of 1989
X20.0
X15.0
X13.0
X9.8
X6.5
X5.7
X4.5
X4.1
X4.0
X4.0
X3.9
X3.6
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 06:24 | 06:50 | 204 | M4.8 | N34W35 | 5395 | |
| 12:27 | 12:34 | 12 | M1.4 | N34W37 | 5395 | |
| 13:33 | 13:37 | 14 | M1.1 | N31W38 | 5395 |
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 1989-03-14X3.6 1989-03-16 →
About this page
A M8.4 flare that began 1989-03-15 16:43 UTC; No. 74 of 2,608 C-class-or-larger flares in 1989.