M 6.6 earthquake: South Atlantic Ocean (Sierra Leone) — June 17, 2026

M 6.6 earthquake: South Atlantic Ocean (Sierra Leone) — June 17, 2026. Epicenter 1259 km SW of Freetown, depth 10 km, 17:56 Local (2026-06-17 18:56 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Atlantic Ocean (1259 km SW, Sierra Leone) — -0.5843, -20.048