M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 26, 1978

M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 26, 1978. Epicenter 634 km E of Grytviken, depth 33 km, 21:44 Local (1978-09-26 23:44 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (634 km E, South Georgia and the Islands) — -55.609, -26.848

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