M 4.9 earthquake: North Atlantic Ocean (Portugal) — January 1, 1981

M 4.9 earthquake: North Atlantic Ocean (Portugal) — January 1, 1981. Epicenter 1442 km SW of Horta, depth 10 km, 21:52 Local (1981-01-02 00:52 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1442 km SW, Portugal) — 30.922, -41.446

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