M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — March 30, 1979

M 5.5 earthquake: South Atlantic Ocean (South Georgia and the Islands) — March 30, 1979. Epicenter 623 km SE of Grytviken, depth 132 km, 15:10 Local (1979-03-30 17:10 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (623 km SE, South Georgia and the Islands) — -56.171, -27.254

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