Solar Flare WatchHome › Flare history › 1991
M5.4 solar flare on 1991-06-13
ClassM5.4NOAA report
Peak18:031991-06-13 UTC
Duration46 min
Peak flux5.4e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 101 / 3297 |
| Other M/X flares that day | 5 |
| M/X flares that month | 72 |
| Solar cycle | Cycle 22 |
| Position on disk | N31W55 |
| Active region | AR 6659 (72 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 |
|---|---|---|---|---|---|---|
| 04:20 | 05:40 | 156 | M1.5 | N28W50 | 6659 | |
| 09:29 | 09:39 | 47 | M1.8 | N28W52 | 6659 | |
| 20:42 | 20:47 | 23 | M1.1 | – | – | |
| 21:59 | 22:07 | 25 | M2.2 | N31W60 | 6659 | |
| 23:28 | 00:01 | 87 | M1.6 | N30W61 | 6659 |
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.
← M5.3 1991-06-11M7.3 1991-06-14 →
About this page
A M5.4 flare that began 1991-06-13 17:40 UTC; No. 101 of 3,297 C-class-or-larger flares in 1991.