M 4.5 earthquake: North Atlantic Ocean (Portugal) — May 15, 1974

M 4.5 earthquake: North Atlantic Ocean (Portugal) — May 15, 1974. Epicenter 1912 km SW of Horta, depth 33 km, 01:37 Local (1974-05-15 04:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1912 km SW, Portugal) — 27.414, -44.351

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