M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — May 7, 1975

M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — May 7, 1975. Epicenter 563 km E of Grytviken, depth 33 km, 16:34 Local (1975-05-07 18:34 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (563 km E, South Georgia and the Islands) — -55.361, -27.919

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