M 4.7 earthquake: North Atlantic Ocean (Portugal) — September 1, 1984

M 4.7 earthquake: North Atlantic Ocean (Portugal) — September 1, 1984. Epicenter 1015 km N of Angra do Heroísmo, depth 10 km, 09:38 Local (1984-09-01 11:38 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1015 km N, Portugal) — 47.775, -27.605

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