Solar Flare Watch
🌐 English

Home › Flare history › 2012

X1.4 solar flare on 2012-07-12

ClassX1.4NOAA report
Peak16:492012-07-12 UTC
Duration113 min
Peak flux1.4e-04W/m²
ComparisonValue
Rank among X flares (1975 – Jun 2017)297 / 491
Rank in year4 / 1388
Other M/X flares that day0
M/X flares that month48
Solar cycleCycle 24
Position on diskN13W15
Active regionAR 11522 (2 flares)

Compared with the strongest flares of 2012

All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.

← M6.9 2012-07-08M7.7 2012-07-19 →

About this page

A X1.4 flare that began 2012-07-12 15:37 UTC; No. 4 of 1,388 C-class-or-larger flares in 2012.