M 4.7 Earthquake: South Atlantic Ocean (South Georgia and the Islands) — October 23, 1986

M 4.7 Earthquake: South Atlantic Ocean (South Georgia and the Islands) — October 23, 1986. Epicenter 499 km E of Grytviken, depth 33 km, 16:43 Local (1986-10-23 18:43 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (499 km E, South Georgia and the Islands) — -55.138, -28.887

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