Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 6734
C24
M2
X3
LargestX1.01991-07-18
Span13 days
Flares by day
2
1
3
2
4
3
2
3
2
7
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1991-07-18 | 13:32 | 13:32 | 32 | C3.1 | N06E90 | 6734 |
| 1991-07-18 | 14:16 | 14:28 | 87 | X1.0 | N06E88 | 6734 |
| 1991-07-20 | 01:36 | 01:42 | 93 | X1.0 | N05E80 | 6734 |
| 1991-07-22 | 09:46 | 10:03 | 27 | X1.0 | N08E47 | 6734 |
| 1991-07-22 | 22:14 | 22:17 | 11 | C4.7 | N08E40 | 6734 |
| 1991-07-22 | 23:22 | 23:27 | 11 | C4.6 | N08E47 | 6734 |
| 1991-07-23 | 05:41 | 05:49 | 32 | C4.8 | N06E39 | 6734 |
| 1991-07-23 | 09:18 | 09:24 | 32 | C3.1 | N09E36 | 6734 |
| 1991-07-24 | 00:34 | 00:37 | 10 | C2.0 | N08E23 | 6734 |
| 1991-07-24 | 11:37 | 11:45 | 52 | C9.8 | N07E18 | 6734 |
| 1991-07-24 | 13:02 | 13:03 | 8 | C4.4 | N09E20 | 6734 |
| 1991-07-24 | 17:26 | 17:26 | 53 | C7.1 | N10E16 | 6734 |
| 1991-07-25 | 01:56 | 01:58 | 6 | C1.9 | N05E11 | 6734 |
| 1991-07-25 | 05:30 | 05:35 | 22 | C2.7 | N09E10 | 6734 |
| 1991-07-25 | 18:00 | 18:01 | 9 | C1.8 | N06E05 | 6734 |
| 1991-07-27 | 07:00 | 07:05 | 23 | C1.2 | N11W20 | 6734 |
| 1991-07-27 | 13:09 | 13:17 | 13 | C1.2 | N06W21 | 6734 |
| 1991-07-28 | 03:25 | 03:29 | 23 | C1.8 | N10W23 | 6734 |
| 1991-07-28 | 06:31 | 06:33 | 12 | C2.0 | N07W29 | 6734 |
| 1991-07-28 | 07:26 | 07:38 | 41 | C4.1 | N09W32 | 6734 |
| 1991-07-29 | 17:24 | 17:26 | 4 | C1.7 | N07W51 | 6734 |
| 1991-07-29 | 22:24 | 22:26 | 8 | C3.8 | N09W55 | 6734 |
| 1991-07-30 | 02:24 | 02:27 | 10 | C2.9 | N10W57 | 6734 |
| 1991-07-30 | 07:06 | 07:12 | 27 | M7.2 | N14W58 | 6734 |
| 1991-07-30 | 08:30 | 08:39 | 19 | C3.9 | N13W60 | 6734 |
| 1991-07-30 | 13:29 | 13:30 | 5 | C1.9 | N16W62 | 6734 |
| 1991-07-30 | 14:54 | 15:03 | 13 | C2.5 | N10W61 | 6734 |
| 1991-07-30 | 15:41 | 15:45 | 9 | C2.9 | N11W65 | 6734 |
| 1991-07-30 | 16:00 | 16:31 | 42 | M1.8 | N08W59 | 6734 |
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 6734 produced 29 C+ flares between 1991-07-18 and 1991-07-30.