M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — June 18, 1983

M 4.9 earthquake: South Atlantic Ocean (South Georgia and the Islands) — June 18, 1983. Epicenter 934 km SE of Grytviken, depth 33 km, 00:01 Local (1983-06-18 02:01 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (934 km SE, South Georgia and the Islands) — -59.509, -24.429

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