#X-CLASS #SOLAR #FLARE: Active sunspot AR3878 erupted again on Oct. 31st (2120 UTC), producing an X2-class solar flare. NASA's Solar Dynamics Observatory captured a spray of hot plasma emerging from the blast site:

X-ray Solar Flares
6-hr max: C5 0810 UT Nov01
24-hr: #X1 2120 UT Oct31

A pulse of extreme ultraviolet radiation from the flare ionized the top of Earth's atmosphere, causing a shortwave radio blackout over the Pacific Ocean. Ham radio operators may have noticed loss of signal below 25 MHz for as much as 45 minutes after the flare.

We don't yet know if the explosion produced a CME. Initial guess: No.

https://spaceweather.com/

#om namah shivaya

ANOTHER #X-FLARE: Old sunspot AR3664 (now AR3697) isn't as big as it used to be, but it is still very active. Today at 1437 UT, it produced an #X1.4-class #solarflare:

Note: The jiggling of the #sun in this movie is not caused by the X-flare. Calibration offsets were underway during the flare.

Extreme ultraviolet radiation produced a deep shortwave radio blackout over the Americas. Ham radio operators may have noticed loss of signal at all frequencies below 30 MHz.

This long-duration flare almost certainly hurled a CME into space. The US Air Force is reporting a Type II solar radio burst most likely produced by shock waves in the leading edge of a CME. Within the radio burst, frequency drift rates suggest an expansion velocity near 900 km/s (2 million mph). Confirmation awaits fresh data from SOHO coronagraphs.

https://spaceweather.com/