M 4.9 earthquake: North Atlantic Ocean (Portugal) — December 6, 1999

M 4.9 earthquake: North Atlantic Ocean (Portugal) — December 6, 1999. Epicenter 1253 km SW of Horta, depth 10 km, 23:35 Local (1999-12-07 02:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (1253 km SW, Portugal) — 32.3, -40.185

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