M 5.3 earthquake: South Atlantic Ocean (South Georgia and the Islands) — May 20, 1977

M 5.3 earthquake: South Atlantic Ocean (South Georgia and the Islands) — May 20, 1977. Epicenter 626 km E of Grytviken, depth 33 km, 20:51 Local (1977-05-20 22:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (626 km E, South Georgia and the Islands) — -56.009, -27.118

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