Solar flares — Oct 18, 2025
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The strongest solar flare in the day
Flare of M1.5 level (strong) — in 11:51
Solar activity index
Value for Oct 18, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Oct 17, 2025 to Oct 18, 2025
Time zone — UTC+01 (London) - summer time
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Oct 18, 2025
Total number of flares of class C and higher — 12 flares
C type — 7 | M type — 5 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C8.02
|
22:40 | 22:54 | 23:01 | — |
|
C3.0
|
18:32 | 18:37 | 18:51 | 4246 |
|
M1.5
|
11:37 | 11:51 | 11:59 | 4246 |
|
C6.0
|
08:35 | 08:48 | 08:55 | 4246 |
|
M1.3
|
07:49 | 07:58 | 08:04 | 4246 |
|
M1.2
|
07:32 | 07:39 | 07:44 | 4246 |
|
C9.9
|
06:43 | 07:05 | 07:19 | 4246 |
|
M1.1
|
03:26 | 03:39 | 03:47 | 4246 |
|
C9.5
|
03:18 | 03:24 | 03:26 | 4246 |
|
C2.9
|
03:05 | 03:09 | 03:14 | 4246 |
|
M1.0
|
01:23 | 01:40 | 01:49 | 4246 |
|
C9.0
|
00:21 | 00:30 | 00:36 | 4256 |