M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — March 31, 2021

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — March 31, 2021. Epicenter 680 km N of Capitol Hill, depth 10 km, 09:58 Local (2021-03-30 23:58 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (680 km N, Northern Mariana Islands) — 21.3196, 146.1159

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