M 4.9 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 22, 1985

M 4.9 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 22, 1985. Epicenter 357 km N of Capitol Hill, depth 165 km, 23:32 Local (1985-04-22 13:32 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (357 km N, Northern Mariana Islands) — 18.415, 145.911

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