M 4.5 earthquake near North Pacific Ocean (Northern Mariana Islands) — 1981-06-20

Magnitude 4.5 earthquake near North Pacific Ocean (421 km N, Northern Mariana Islands), depth 199 km, 01:11 Local (1981-06-20 15:11 UTC). Shaking felt by 0 people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (421 km N, Northern Mariana Islands) — 18.978, 145.445

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