M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 1, 1997

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 1, 1997. Epicenter 423 km N of Capitol Hill, depth 33 km, 21:42 Local (1997-07-01 11:42 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (423 km N, Northern Mariana Islands) — 18.842, 146.943

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