M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — February 21, 1997

M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — February 21, 1997. Epicenter 359 km N of Capitol Hill, depth 443 km, 22:34 Local (1997-02-21 12:34 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (359 km N, Northern Mariana Islands) — 18.386, 145.143

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