M 5.0 earthquake: North Pacific Ocean (Northern Mariana Islands) — October 4, 1983

M 5.0 earthquake: North Pacific Ocean (Northern Mariana Islands) — October 4, 1983. Epicenter 540 km N of Capitol Hill, depth 121 km, 00:20 Local (1983-10-03 14:20 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (540 km N, Northern Mariana Islands) — 20.071, 145.658

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