On May 22, 1960: Chile Struck by the Most Powerful Earthquake Ever Recorded SANTIAGO — On May 22, 1960, at 3:11 p.m. local time, a massive earthquake struck off the coast of southern Chile, registering a magnitude of 9.5 — the strongest ever instrumentally recorded. The quake devastated [...] The post On May 22, 1960: Chile Struck by the Most Powerful Earthquake Ever Recorded appeared first on The Santiago Times .