M 4.7 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 15, 1983

M 4.7 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 15, 1983. Epicenter 668 km E of Grytviken, depth 33 km, 03:45 Local (1983-09-15 05:45 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (668 km E, South Georgia and the Islands) — -55.513, -26.268

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