M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — March 7, 1978

M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — March 7, 1978. Epicenter 730 km SE of Grytviken, depth 33 km, 16:35 Local (1978-03-07 18:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (730 km SE, South Georgia and the Islands) — -56.446, -25.589

EarthquakeLive.org