M 4.5 earthquake: North Pacific Ocean (Mexico) — February 20, 1983

M 4.5 earthquake: North Pacific Ocean (Mexico) — February 20, 1983. Epicenter 383 km W of Manzanillo, depth 10 km, 20:42 Local (1983-02-21 03:42 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (383 km W, Mexico) — 17.746, -107.68

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