M 4.7 earthquake: North Atlantic Ocean (Portugal) — September 13, 1988

M 4.7 earthquake: North Atlantic Ocean (Portugal) — September 13, 1988. Epicenter 1255 km N of Angra do Heroísmo, depth 10 km, 22:37 Local (1988-09-14 00:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1255 km N, Portugal) — 49.88, -28.786

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