M 4.5 earthquake: North Atlantic Ocean (Portugal) — September 1, 1979

M 4.5 earthquake: North Atlantic Ocean (Portugal) — September 1, 1979. Epicenter 441 km N of Horta, depth 10 km, 11:35 Local (1979-09-01 13:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (441 km N, Portugal) — 42.451, -29.467

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