M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — August 17, 1983

M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — August 17, 1983. Epicenter 386 km N of Capitol Hill, depth 220 km, 11:11 Local (1983-08-17 01:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (386 km N, Northern Mariana Islands) — 18.667, 145.402

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