M 4.6 earthquake: Southern Ocean (Antarctica) — December 20, 2025

M 4.6 earthquake: Southern Ocean (Antarctica) — December 20, 2025. Epicenter 1266 km N of Zucchelli Station, depth 10 km, 02:50 Local (2025-12-19 14:50 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Southern Ocean (1266 km N, Antarctica) — -63.6798, 173.3616