M 5.1 earthquake: North Pacific Ocean (Northern Mariana Islands) — August 1, 1983

M 5.1 earthquake: North Pacific Ocean (Northern Mariana Islands) — August 1, 1983. Epicenter 449 km N of Capitol Hill, depth 164 km, 07:05 Local (1983-07-31 21:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (449 km N, Northern Mariana Islands) — 19.234, 145.423

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