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 406 km N of Capitol Hill, depth 33 km, 13:51 Local (1987-04-14 03:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (406 km N, Northern Mariana Islands) — 18.742, 146.709

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