M 4.8 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 28, 1983

M 4.8 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 28, 1983. Epicenter 722 km E of Grytviken, depth 33 km, 22:54 Local (1983-12-29 00:54 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (722 km E, South Georgia and the Islands) — -56.282, -25.647

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