M 4.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 13, 1974

M 4.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 13, 1974. Epicenter 912 km SE of Grytviken, depth 33 km, 00:25 Local (1974-09-13 02:25 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (912 km SE, South Georgia and the Islands) — -58.515, -23.766

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