M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — May 13, 1983

M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — May 13, 1983. Epicenter 677 km E of Grytviken, depth 33 km, 23:58 Local (1983-05-14 01:58 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (677 km E, South Georgia and the Islands) — -54.545, -26.039

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