M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — April 18, 1974

M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — April 18, 1974. Epicenter 591 km E of Grytviken, depth 33 km, 06:59 Local (1974-04-18 08:59 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (591 km E, South Georgia and the Islands) — -55.786, -27.606

EarthquakeLive.org