M 4.9 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 6, 1986

M 4.9 earthquake: North Pacific Ocean (Northern Mariana Islands) — April 6, 1986. Epicenter 400 km N of Capitol Hill, depth 203 km, 18:44 Local (1986-04-06 08:44 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (400 km N, Northern Mariana Islands) — 18.809, 145.628

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