M 5.3 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 12, 1977

M 5.3 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 12, 1977. Epicenter 860 km SE of Grytviken, depth 33 km, 20:39 Local (1977-09-12 22:39 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (860 km SE, South Georgia and the Islands) — -59.441, -25.928

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