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M6.9 solar flare on 2014-12-18

ClassM6.9NOAA report
Peak21:582014-12-18 UTC
Duration44 min
Peak flux6.9e-05W/m²
ComparisonValue
Rank in year26 / 2016
Other M/X flares that day0
M/X flares that month18
Solar cycleCycle 24
Position on diskS11E15
Active regionAR 12241 (16 flares)

Compared with the strongest flares of 2014

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.

← M8.7 2014-12-17X1.8 2014-12-20 →

About this page

A M6.9 flare that began 2014-12-18 21:41 UTC; No. 26 of 2,016 C-class-or-larger flares in 2014.