M 4.8 earthquake: North Atlantic Ocean (Portugal) — January 31, 1980

M 4.8 earthquake: North Atlantic Ocean (Portugal) — January 31, 1980. Epicenter 842 km SW of Horta, depth 10 km, 06:16 Local (1980-01-31 08:16 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (842 km SW, Portugal) — 34.552, -36.674

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