M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — August 8, 1979

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — August 8, 1979. Epicenter 325 km N of Capitol Hill, depth 273 km, 19:07 Local (1979-08-08 09:07 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (325 km N, Northern Mariana Islands) — 18.124, 145.482

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