M 5.4 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 16, 1977

M 5.4 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 16, 1977. Epicenter 744 km SE of Grytviken, depth 33 km, 05:29 Local (1977-12-16 07:29 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (744 km SE, South Georgia and the Islands) — -56.531, -25.389

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