M 4.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — March 12, 1983

M 4.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — March 12, 1983. Epicenter 629 km N of Capitol Hill, depth 33 km, 10:08 Local (1983-03-12 00:08 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (629 km N, Northern Mariana Islands) — 20.865, 146.051

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