CHAIN REACTION ON THE #SUN: A magnetic filament connected to #sunspot AR3229 erupted on Feb. 24th (1949 UTC), producing a chain reaction of events. First, the filament sliced through the sun's atmosphere:

Its liftoff destabilized the sunspot, sparking a long duration M3-class #solar #flare (2030 UTC). The flare, in turn, ionized the top of Earth's atmosphere, blacking out shortwave radio transmissions around the Pacific Ocean

https://spaceweather.com/