M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 18, 1990

M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 18, 1990. Epicenter 1978 km NE of Grytviken, depth 12 km, 01:49 Local (1990-12-18 02:49 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (1978 km NE, South Georgia and the Islands) — -42.667, -15.948

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