M 5.1 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 28, 1988

M 5.1 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 28, 1988. Epicenter 347 km N of Capitol Hill, depth 73 km, 23:15 Local (1988-07-28 13:15 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (347 km N, Northern Mariana Islands) — 18.258, 146.465

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