M 5.5 earthquake: Indian Ocean (Antarctica) — May 4, 1973

M 5.5 earthquake: Indian Ocean (Antarctica) — May 4, 1973. Epicenter 2465 km N of Mawson Station, depth 33 km, 04:11 Local (1973-05-03 23:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Indian Ocean (2465 km N, Antarctica) — -46.102, 73.202

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