M 4.9 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 14, 1987

M 4.9 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 14, 1987. Epicenter 418 km N of Capitol Hill, depth 47 km, 13:04 Local (1987-04-14 03:04 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (418 km N, Northern Mariana Islands) — 18.816, 146.874

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