Solar Flare WatchHome › Flare history › 1991
M6.0 solar flare on 1991-03-16
ClassM6.0NOAA report
Peak21:561991-03-16 UTC
Duration36 min
Peak flux6.0e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 93 / 3297 |
| Other M/X flares that day | 4 |
| M/X flares that month | 123 |
| Solar cycle | Cycle 22 |
| Position on disk | S09W04 |
| Active region | AR 6545 (57 flares) |
Compared with the strongest flares of 1991
X12.0
X12.0
X12.0
X12.0
X12.0
X10.0
X10.0
X9.4
X7.1
X6.1
X5.5
X5.3
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 00:47 | 00:50 | 22 | X1.8 | S09E09 | 6545 | |
| 10:52 | 10:54 | 22 | M4.8 | S14E05 | 6545 | |
| 18:01 | 18:06 | 19 | M1.1 | S10W02 | 6545 | |
| 20:46 | 20:46 | 14 | M1.9 | S19W65 | 6538 |
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.
← X1.8 1991-03-16X1.0 1991-03-17 →
About this page
A M6.0 flare that began 1991-03-16 21:44 UTC; No. 93 of 3,297 C-class-or-larger flares in 1991.