M 4.8 earthquake: North Atlantic Ocean (Portugal) — April 9, 1973

M 4.8 earthquake: North Atlantic Ocean (Portugal) — April 9, 1973. Epicenter 816 km N of Angra do Heroísmo, depth 33 km, 06:41 Local (1973-04-09 08:41 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (816 km N, Portugal) — 45.978, -27.67

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