M 4.5 earthquake: North Atlantic Ocean (Portugal) — March 28, 2026

M 4.5 earthquake: North Atlantic Ocean (Portugal) — March 28, 2026. Epicenter 414 km W of Horta, depth 10 km, 14:21 Local (2026-03-28 16:21 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (414 km W, Portugal) — 37.119, -33.0034

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