M 4.6 earthquake: North Atlantic Ocean (Ecuador) — September 20, 1991

M 4.6 earthquake: North Atlantic Ocean (Ecuador) — September 20, 1991. Epicenter 948 km NW of Puerto Villamil, depth 10 km, 05:11 Local (1991-09-20 12:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (948 km NW, Ecuador) — 2.43, -98.857

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