M 4.8 earthquake: North Pacific Ocean (Northern Mariana Islands) — March 15, 1987

M 4.8 earthquake: North Pacific Ocean (Northern Mariana Islands) — March 15, 1987. Epicenter 423 km N of Capitol Hill, depth 43 km, 18:06 Local (1987-03-15 08:06 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (423 km N, Northern Mariana Islands) — 18.818, 147.005

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