the latest incident was in early August of 1972, when a powerful but highly localized eruption created a massive EMP that heavily affected Earth. Compasses in planes and boats jumped wildly, long-distance wireless communications failed, the sky shone with dazzling red lights in high northern latitudes, electric lights flickered in villages as if they were in the center of a thunderstorm. The reactions continued for more than a week.
It's true.
