M 4.6 earthquake: South Atlantic Ocean (Antarctica) — September 20, 2026

M 4.6 earthquake: South Atlantic Ocean (Antarctica) — September 20, 2026. Epicenter 1381 km N of Neumayer Station III, depth 10 km, 22:36 Local (2026-09-20 23:36 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (1381 km N, Antarctica) — -58.8153, -14.8256

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