M 4.5 earthquake: Indian Ocean (Antarctica) — December 20, 2025

M 4.5 earthquake: Indian Ocean (Antarctica) — December 20, 2025. Epicenter 1953 km NW of Showa Station, depth 10 km, 22:31 Local (2025-12-20 20:31 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Indian Ocean (1953 km NW, Antarctica) — -52.3544, 28.0513

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