M 4.5 earthquake: North Atlantic Ocean (Portugal) — September 5, 2023

M 4.5 earthquake: North Atlantic Ocean (Portugal) — September 5, 2023. Epicenter 422 km SW of Horta, depth 10 km, 17:33 Local (2023-09-05 19:33 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (422 km SW, Portugal) — 36.9534, -33.0038

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