M 5.1 earthquake: North Atlantic Ocean (Portugal) — April 18, 1972

M 5.1 earthquake: North Atlantic Ocean (Portugal) — April 18, 1972. Epicenter 251 km W of Portimão, depth 15 km, 06:51 Local (1972-04-18 05:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (251 km W, Portugal) — 36.333, -11.172

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