Solar flares on March 18, 2026
The most powerful solar flare in 24 hours
M2.7 (strong) flare - March 18 at 2:42 AM
Solar activity index
Value as of the end of the day on March 18, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from March 17, 2026 to March 18, 2026
Time zone — UTC-06 (Red deer) — summer time
List of solar flares for March 18, 2026
The total number of solar flares of class C and higher — 6 flares
C class — 5 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.3 | 23:44 | 23:58 | 00:10 | 4392 |
| C1.0 | 10:45 | 10:54 | 10:58 | 4392 |
| C3.6 | 06:53 | 07:11 | 07:21 | 4392 |
| C2.8 | 03:48 | 04:02 | 04:12 | 4392 |
| M2.7 | 02:26 | 02:42 | 02:57 | 4392 |
| C2.7 | 00:44 | 00:59 | 01:09 | 4392 |