A sunspot hiding behind the northwestern edge of the Sun threw up an M2-class solar flare. Although the flare was mostly obscured by the edge of the Sun, it still managed to cause a shortwave radio blackout over South America.
The same explosion threw a bright CME into space. The CME is not predicted to be directed toward Earth. However, immediately after the outburst, a flux of cosmic radiation was registered, which is intermittently recorded even now.