M 4.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 28, 1999

M 4.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 28, 1999. Epicenter 528 km N of Capitol Hill, depth 33 km, 05:13 Local (1999-07-27 19:13 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (528 km N, Northern Mariana Islands) — 19.716, 147.333

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