M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 12, 1974

M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 12, 1974. Epicenter 844 km SE of Grytviken, depth 33 km, 20:56 Local (1974-09-12 22:56 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (844 km SE, South Georgia and the Islands) — -58.646, -25.232

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