M 4.6 earthquake: North Atlantic Ocean (Portugal) — June 18, 1986

M 4.6 earthquake: North Atlantic Ocean (Portugal) — June 18, 1986. Epicenter 761 km N of Angra do Heroísmo, depth 10 km, 01:54 Local (1986-06-18 03:54 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (761 km N, Portugal) — 45.467, -28.05

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