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

M 4.5 earthquake: North Atlantic Ocean (Portugal) — May 15, 1974. Epicenter 1903 km SW of Horta, depth 33 km, 07:05 Local (1974-05-15 10:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1903 km SW, Portugal) — 27.465, -44.277

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