M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 18, 1985

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 18, 1985. Epicenter 341 km N of Capitol Hill, depth 460 km, 02:04 Local (1985-04-17 16:04 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (341 km N, Northern Mariana Islands) — 18.255, 145.356

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