M 5.4 earthquake: South Atlantic Ocean (South Georgia and the Islands) — April 21, 1973

M 5.4 earthquake: South Atlantic Ocean (South Georgia and the Islands) — April 21, 1973. Epicenter 830 km SE of Grytviken, depth 95 km, 23:47 Local (1973-04-22 01:47 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (830 km SE, South Georgia and the Islands) — -59.943, -27.518

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