M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — May 7, 1988

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — May 7, 1988. Epicenter 336 km N of Capitol Hill, depth 135 km, 14:10 Local (1988-05-07 04:10 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (336 km N, Northern Mariana Islands) — 18.225, 146.027

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