M 4.6 earthquake: South Pacific Ocean (Samoa) — March 21, 2026

M 4.6 earthquake: South Pacific Ocean (Samoa) — March 21, 2026. Epicenter 251 km SW of Apia, depth 10 km, 23:52 Local (2026-03-21 10:52 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (251 km SW, Samoa) — -14.9596, -173.7662

EarthquakeLive.org