M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 21, 2021

M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 21, 2021. Epicenter 364 km N of Capitol Hill, depth 51 km, 03:47 Local (2021-12-20 17:47 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (364 km N, Northern Mariana Islands) — 18.3476, 146.7198

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