M 5.0 earthquake: North Atlantic Ocean (Portugal) — January 9, 1981

M 5.0 earthquake: North Atlantic Ocean (Portugal) — January 9, 1981. Epicenter 693 km SW of Horta, depth 10 km, 05:51 Local (1981-01-09 07:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (693 km SW, Portugal) — 35.18, -35.216

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