M 5.4 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 4, 1974

M 5.4 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 4, 1974. Epicenter 855 km SE of Grytviken, depth 33 km, 17:43 Local (1974-12-04 19:43 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (855 km SE, South Georgia and the Islands) — -56.889, -23.688

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