M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 17, 1983

M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 17, 1983. Epicenter 765 km E of Grytviken, depth 38 km, 20:25 Local (1983-09-17 22:25 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (765 km E, South Georgia and the Islands) — -55.953, -24.83

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