M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 16, 1975

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 16, 1975. Epicenter 330 km N of Capitol Hill, depth 83 km, 23:32 Local (1975-12-16 13:32 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (330 km N, Northern Mariana Islands) — 18.123, 146.346

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