M 5.8 earthquake: Indian Ocean (Antarctica) — September 1, 1983

M 5.8 earthquake: Indian Ocean (Antarctica) — September 1, 1983. Epicenter 1978 km NW of Showa Station, depth 10 km, 19:59 Local (1983-09-01 17:59 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Indian Ocean (1978 km NW, Antarctica) — -52.484, 25.838

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