Solar flares on April 18, 2012
The most powerful solar flare in 24 hours
C8.9 (normal) flare - April 18 at 7:39 AM
Solar activity index
Value as of the end of the day on April 18, 2012
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 17, 2012 to April 18, 2012
Time zone — UTC-05 (Red Lake) — summer time
List of solar flares for April 18, 2012
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 21:54 | 22:01 | 22:05 | 1463 |
| C1.4 | 19:00 | 19:11 | 19:18 | 1460 |
| C1.3 | 13:12 | 13:15 | 13:20 | — |
| C5.3 | 11:54 | 12:06 | 12:18 | 1463 |
| C5.9 | 09:51 | 10:13 | 10:18 | 1463 |
| C8.9 | 07:32 | 07:39 | 07:50 | 1463 |
| C1.5 | 06:28 | 06:44 | 06:54 | 1463 |
| C1.1 | 00:26 | 00:30 | 00:33 | — |