M 4.6 earthquake: North Atlantic Ocean (Portugal) — April 20, 2011

M 4.6 earthquake: North Atlantic Ocean (Portugal) — April 20, 2011. Epicenter 1456 km SW of Horta, depth 10 km, 02:21 Local (2011-04-20 05:21 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1456 km SW, Portugal) — 30.821, -41.549

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