M 5.3 earthquake: North Atlantic Ocean (Portugal) — November 30, 1997

M 5.3 earthquake: North Atlantic Ocean (Portugal) — November 30, 1997. Epicenter 1491 km SW of Horta, depth 10 km, 14:57 Local (1997-11-30 17:57 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1491 km SW, Portugal) — 30.616, -41.823

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