The intense solar flare originated from sunspot region AR3869 and unfolded over the span of an hour, reaching its peak at 11:57 p.m. EDT on Oct. 23 (0357 GMT on Oct. 24). Extreme ultraviolet radiation from the eruption triggered shortwave radio blackouts over Australia and Southeast Asia.

On3, 2024, NASA’s Solar Dynamics Observatory captured a powerful solar flare that peaked at 11:57 p.m. ET. This flare, classified as an X3.3, represents a high-intensity event capable of disrupting radio communications,