M 4.6 earthquake: North Atlantic Ocean (Portugal) — July 1, 1973

M 4.6 earthquake: North Atlantic Ocean (Portugal) — July 1, 1973. Epicenter 1241 km N of Angra do Heroísmo, depth 33 km, 23:38 Local (1973-07-02 01:38 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1241 km N, Portugal) — 49.775, -28.429

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