M 4.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 17, 1999

M 4.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 17, 1999. Epicenter 458 km N of Capitol Hill, depth 181 km, 05:37 Local (1999-12-16 19:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (458 km N, Northern Mariana Islands) — 19.305, 145.277

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