M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 28, 1979

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 28, 1979. Epicenter 569 km N of Capitol Hill, depth 96 km, 01:50 Local (1979-07-27 15:50 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (569 km N, Northern Mariana Islands) — 20.322, 145.469

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