M 5.3 earthquake: Southern Ocean (Antarctica) — December 20, 2025

M 5.3 earthquake: Southern Ocean (Antarctica) — December 20, 2025. Epicenter 1252 km N of Zucchelli Station, depth 10 km, 21:25 Local (2025-12-20 10:25 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Southern Ocean (1252 km N, Antarctica) — -63.7108, 172.3365