Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 6718
C18
M4
X0
LargestM3.61991-07-10
Span9 days
Flares by day
1
2
2
6
5
6
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1991-07-06 | 17:00 | 17:02 | 29 | C9.8 | S27E79 | 6718 |
| 1991-07-09 | 14:56 | 15:04 | 21 | M1.2 | S23E43 | 6718 |
| 1991-07-09 | 17:25 | 17:30 | 16 | C1.7 | S21E46 | 6718 |
| 1991-07-10 | 06:39 | 06:42 | 27 | C5.9 | S22E45 | 6718 |
| 1991-07-10 | 11:59 | 12:26 | 143 | M3.6 | S22E34 | 6718 |
| 1991-07-12 | 09:39 | 09:46 | 19 | C3.5 | S24E14 | 6718 |
| 1991-07-12 | 12:16 | 12:23 | 35 | C5.0 | S24E09 | 6718 |
| 1991-07-12 | 14:04 | 14:09 | 23 | C4.4 | S22E08 | 6718 |
| 1991-07-12 | 15:18 | 15:22 | 19 | C2.6 | S23E10 | 6718 |
| 1991-07-12 | 16:03 | 16:13 | 25 | C2.0 | S25E09 | 6718 |
| 1991-07-12 | 17:32 | 17:37 | 28 | C6.0 | S23E06 | 6718 |
| 1991-07-13 | 00:51 | 01:09 | 37 | C3.0 | S26E05 | 6718 |
| 1991-07-13 | 01:54 | 03:05 | 91 | C3.0 | S24W00 | 6718 |
| 1991-07-13 | 06:10 | 06:22 | 13 | C1.9 | S25W02 | 6718 |
| 1991-07-13 | 10:12 | 10:14 | 24 | C3.4 | S22W01 | 6718 |
| 1991-07-13 | 21:43 | 21:44 | 11 | C7.7 | S24W08 | 6718 |
| 1991-07-14 | 03:08 | 03:28 | 56 | M1.0 | S25W16 | 6718 |
| 1991-07-14 | 06:36 | 06:38 | 29 | C5.9 | S25W11 | 6718 |
| 1991-07-14 | 07:34 | 07:36 | 19 | M1.2 | S25W06 | 6718 |
| 1991-07-14 | 19:24 | 19:34 | 20 | C2.6 | S24W20 | 6718 |
| 1991-07-14 | 19:39 | 19:41 | 25 | C3.5 | S25W18 | 6718 |
| 1991-07-14 | 22:18 | 22:18 | 6 | C1.5 | S23W25 | 6718 |
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.
About this page
NOAA active region 6718 produced 22 C+ flares between 1991-07-06 and 1991-07-14.