M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — July 4, 1983

M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — July 4, 1983. Epicenter 562 km E of Grytviken, depth 33 km, 09:32 Local (1983-07-04 11:32 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (562 km E, South Georgia and the Islands) — -55.575, -27.994

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