M 5.5 earthquake: North Atlantic Ocean (Portugal) — August 23, 1986

M 5.5 earthquake: North Atlantic Ocean (Portugal) — August 23, 1986. Epicenter 1352 km SW of Horta, depth 10 km, 14:11 Local (1986-08-23 17:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1352 km SW, Portugal) — 31.675, -40.938

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