M 4.6 earthquake near North Pacific Ocean (Northern Mariana Islands) — 1991-12-28

Magnitude 4.6 earthquake near North Pacific Ocean (343 km N, Northern Mariana Islands), depth 100 km, 21:45 Local (1991-12-28 11:45 UTC). Shaking felt by 0 people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (343 km N, Northern Mariana Islands) — 18.131, 146.798

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