M 6.6 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 22, 1972

M 6.6 earthquake: South Atlantic Ocean (South Georgia and the Islands) — December 22, 1972. Epicenter 544 km E of Grytviken, depth 22 km, 10:19 Local (1972-12-22 12:19 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (544 km E, South Georgia and the Islands) — -55.595, -28.296

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