M 4.7 earthquake: North Atlantic Ocean (Portugal) — November 20, 1986

M 4.7 earthquake: North Atlantic Ocean (Portugal) — November 20, 1986. Epicenter 1059 km N of Angra do Heroísmo, depth 10 km, 13:00 Local (1986-11-20 15:00 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1059 km N, Portugal) — 48.164, -27.747

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