M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — August 18, 1999

M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — August 18, 1999. Epicenter 414 km N of Capitol Hill, depth 229 km, 01:06 Local (1999-08-17 15:06 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (414 km N, Northern Mariana Islands) — 18.923, 145.485

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