M 4.5 earthquake: North Atlantic Ocean (Portugal) — September 25, 1989

M 4.5 earthquake: North Atlantic Ocean (Portugal) — September 25, 1989. Epicenter 646 km N of Angra do Heroísmo, depth 10 km, 21:23 Local (1989-09-25 23:23 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (646 km N, Portugal) — 44.398, -28.333

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