M 4.7 earthquake: North Atlantic Ocean (Portugal) — January 27, 1977

M 4.7 earthquake: North Atlantic Ocean (Portugal) — January 27, 1977. Epicenter 1304 km N of Angra do Heroísmo, depth 33 km, 22:48 Local (1977-01-28 00:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1304 km N, Portugal) — 50.285, -29.318

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