M 4.7 earthquake: North Atlantic Ocean (Portugal) — April 6, 1997

M 4.7 earthquake: North Atlantic Ocean (Portugal) — April 6, 1997. Epicenter 725 km SW of Horta, depth 10 km, 15:49 Local (1997-04-06 17:49 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (725 km SW, Portugal) — 35.169, -35.631

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