M 4.6 earthquake: North Atlantic Ocean (Portugal) — May 25, 1974

M 4.6 earthquake: North Atlantic Ocean (Portugal) — May 25, 1974. Epicenter 1913 km SW of Horta, depth 33 km, 12:46 Local (1974-05-25 15:46 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1913 km SW, Portugal) — 27.377, -44.329

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