M 5.1 earthquake: North Atlantic Ocean (Portugal) — October 3, 2025

M 5.1 earthquake: North Atlantic Ocean (Portugal) — October 3, 2025. Epicenter 1807 km SW of Horta, depth 10 km, 01:17 Local (2025-10-03 04:17 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1807 km SW, Portugal) — 28.2537, -43.7754

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