M 4.6 earthquake: North Atlantic Ocean (Portugal) — April 29, 1987

M 4.6 earthquake: North Atlantic Ocean (Portugal) — April 29, 1987. Epicenter 1201 km N of Angra do Heroísmo, depth 10 km, 22:38 Local (1987-04-30 00:38 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1201 km N, Portugal) — 49.406, -28.638

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