M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 22, 1975

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 22, 1975. Epicenter 619 km N of Capitol Hill, depth 109 km, 03:51 Local (1975-12-21 17:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (619 km N, Northern Mariana Islands) — 20.759, 145.26

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