M 4.7 earthquake: Southern Ocean (Antarctica) — December 15, 2025

M 4.7 earthquake: Southern Ocean (Antarctica) — December 15, 2025. Epicenter 343 km W of Signy Research Station, depth 10 km, 11:52 Local (2025-12-15 14:52 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Southern Ocean (343 km W, Antarctica) — -60.7713, -51.9006