M 4.6 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 3, 1973

M 4.6 earthquake: South Atlantic Ocean (South Georgia and the Islands) — September 3, 1973. Epicenter 630 km SE of Grytviken, depth 33 km, 05:14 Local (1973-09-03 07:14 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (630 km SE, South Georgia and the Islands) — -56.185, -27.137

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