M 5.0 earthquake: North Pacific Ocean (Northern Mariana Islands) — February 28, 1977

M 5.0 earthquake: North Pacific Ocean (Northern Mariana Islands) — February 28, 1977. Epicenter 385 km N of Capitol Hill, depth 579 km, 04:34 Local (1977-02-27 18:34 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (385 km N, Northern Mariana Islands) — 18.647, 145.293

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