M 5.4 earthquake: North Atlantic Ocean (Portugal) — December 8, 1986

M 5.4 earthquake: North Atlantic Ocean (Portugal) — December 8, 1986. Epicenter 922 km N of Angra do Heroísmo, depth 10 km, 01:03 Local (1986-12-08 03:03 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (922 km N, Portugal) — 46.937, -27.462

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