M 4.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — March 15, 1987

M 4.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — March 15, 1987. Epicenter 414 km N of Capitol Hill, depth 58 km, 17:40 Local (1987-03-15 07:40 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (414 km N, Northern Mariana Islands) — 18.764, 146.923

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