M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 12, 1999

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 12, 1999. Epicenter 622 km N of Capitol Hill, depth 60 km, 10:11 Local (1999-07-12 00:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (622 km N, Northern Mariana Islands) — 20.794, 146.165

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