M 5.5 earthquake: North Atlantic Ocean (Portugal) — March 21, 2023

M 5.5 earthquake: North Atlantic Ocean (Portugal) — March 21, 2023. Epicenter 1774 km SW of Horta, depth 10 km, 17:41 Local (2023-03-21 20:41 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1774 km SW, Portugal) — 28.5073, -43.5932

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