M 4.7 earthquake: Indian Ocean (Antarctica) — May 23, 1974

M 4.7 earthquake: Indian Ocean (Antarctica) — May 23, 1974. Epicenter 1964 km NW of Showa Station, depth 33 km, 03:45 Local (1974-05-23 01:45 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Indian Ocean (1964 km NW, Antarctica) — -53.16, 23.059

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