Solar Flare WatchHome › Flare history › 1982
M6.4 solar flare on 1982-09-04
ClassM6.4NOAA report
Peak00:481982-09-04 UTC
Duration215 min
Peak flux6.4e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 75 / 3850 |
| Other M/X flares that day | 1 |
| M/X flares that month | 7 |
| Solar cycle | Cycle 21 |
| Position on disk | N10E36 |
| Active region | AR 3886 (21 flares) |
Compared with the strongest flares of 1982
X12.9
X12.0
X10.1
X9.8
X8.0
X7.1
X5.9
X5.0
X4.5
X3.6
X3.2
X3.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 02:00 | 03:45 | 180 | M4.0 | N11E30 | 3886 |
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.
← M7.2 1982-08-08X1.1 1982-11-12 →
About this page
A M6.4 flare that began 1982-09-04 00:01 UTC; No. 75 of 3,850 C-class-or-larger flares in 1982.