M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 18, 2026

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 18, 2026. Epicenter 546 km N of Capitol Hill, depth 10 km, 11:30 Local (2026-07-18 01:30 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (546 km N, Northern Mariana Islands) — 20.1169, 145.4631

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