M 4.5 earthquake: North Atlantic Ocean (Portugal) — March 17, 1986

M 4.5 earthquake: North Atlantic Ocean (Portugal) — March 17, 1986. Epicenter 594 km SW of Horta, depth 10 km, 06:48 Local (1986-03-17 08:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (594 km SW, Portugal) — 35.807, -34.407

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