M 4.7 earthquake: North Atlantic Ocean (Portugal) — September 6, 2025

M 4.7 earthquake: North Atlantic Ocean (Portugal) — September 6, 2025. Epicenter 528 km N of Horta, depth 10 km, 09:02 Local (2025-09-06 11:02 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (528 km N, Portugal) — 43.2761, -28.9956

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