Solar flares on May 4, 2026
The most powerful solar flare in 24 hours
M1.8 (strong) flare - May 4 at 1:33 AM
Solar activity index
Value as of the end of the day on May 4, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 3, 2026 to May 4, 2026
Time zone — UTC+00
List of solar flares for May 4, 2026
The total number of solar flares of class C and higher — 4 flares
C class — 3 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 22:00 | 22:06 | 22:14 | 4435 |
| C1.5 | 11:33 | 11:39 | 11:42 | 4425 |
| C1.2 | 10:39 | 10:51 | 11:03 | 4429 |
| M1.8 | 01:13 | 01:33 | 01:44 | 4424 |