M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 20, 1989

M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 20, 1989. Epicenter 839 km SE of Grytviken, depth 33 km, 21:45 Local (1989-12-20 23:45 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (839 km SE, South Georgia and the Islands) — -58.775, -25.485

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