M 6.1 earthquake: North Atlantic Ocean (Portugal) — July 9, 1953

M 6.1 earthquake: North Atlantic Ocean (Portugal) — July 9, 1953. Epicenter 1604 km SW of Horta, depth 10 km, 18:23 Local (1953-07-09 21:23 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1604 km SW, Portugal) — 29.981, -42.746

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