Solar Flare WatchHome › Flare history › 1991
M5.0 solar flare on 1991-06-30
ClassM5.0NOAA report
Peak02:461991-06-30 UTC
Duration37 min
Peak flux5.0e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 112 / 3297 |
| Other M/X flares that day | 1 |
| M/X flares that month | 72 |
| Solar cycle | Cycle 22 |
| Position on disk | S06W19 |
| Active region | AR 6693 (12 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 |
|---|---|---|---|---|---|---|
| 15:29 | 15:34 | 68 | M1.1 | N13E39 | 6699 |
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.
← M6.0 1991-06-28M5.8 1991-07-01 →
About this page
A M5.0 flare that began 1991-06-30 02:43 UTC; No. 112 of 3,297 C-class-or-larger flares in 1991.