M 4.7 earthquake: North Atlantic Ocean (Portugal) — January 27, 1991

M 4.7 earthquake: North Atlantic Ocean (Portugal) — January 27, 1991. Epicenter 1973 km SW of Horta, depth 10 km, 23:58 Local (1991-01-28 02:58 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1973 km SW, Portugal) — 26.837, -44.579

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