M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — January 6, 1977

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — January 6, 1977. Epicenter 389 km N of Capitol Hill, depth 136 km, 00:12 Local (1977-01-05 14:12 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (389 km N, Northern Mariana Islands) — 18.701, 145.516

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