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Solar flares — March 18, 2026

March 18, 2026

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Solar flares on March 18, 2026

The most powerful solar flare in 24 hours

M2.7 (strong) flare - March 18 at 9:42 AM

Solar activity index

Value as of the end of the day on March 18, 2026

Solar activity index

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+01 (Budapest)

Solar flares
PNG API: JSON | TXT

List of solar flares for March 18, 2026

The total number of solar flares of class C and higher — 9 flares

C class — 8 | M class — 1 | X class — 0

Class begin max end region
C1.0 17:45 17:54 17:58 4392
C3.6 13:53 14:11 14:21 4392
C2.8 10:48 11:02 11:12 4392
M2.7 09:26 09:42 09:57 4392
C2.7 07:44 07:59 08:09 4392
C1.2 05:23 05:34 05:37 4397
C1.1 04:58 05:19 05:23 4397
C1.0 03:42 03:51 04:09 4393
C3.9 01:59 02:23 02:33 4392