M 4.8 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 21, 1981

M 4.8 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 21, 1981. Epicenter 638 km E of Grytviken, depth 98 km, 07:05 Local (1981-09-21 09:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (638 km E, South Georgia and the Islands) — -56.086, -26.957

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