M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — March 7, 1978

M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — March 7, 1978. Epicenter 580 km E of Grytviken, depth 33 km, 14:34 Local (1978-03-07 16:34 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (580 km E, South Georgia and the Islands) — -55.627, -27.721

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