M 4.7 earthquake: North Atlantic Ocean (Portugal) — September 23, 1975

M 4.7 earthquake: North Atlantic Ocean (Portugal) — September 23, 1975. Epicenter 379 km N of Funchal, depth 33 km, 17:21 Local (1975-09-23 18:21 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (379 km N, Portugal) — 35.953, -17.905

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