M 4.6 earthquake: Indian Ocean (Antarctica) — September 20, 2025

M 4.6 earthquake: Indian Ocean (Antarctica) — September 20, 2025. Epicenter 2006 km NW of Showa Station, depth 10 km, 03:14 Local (2025-09-20 02:14 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Indian Ocean (2006 km NW, Antarctica) — -52.9739, 22.0891

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