M 5.1 earthquake: North Pacific Ocean (Northern Mariana Islands) — October 11, 1978

M 5.1 earthquake: North Pacific Ocean (Northern Mariana Islands) — October 11, 1978. Epicenter 716 km N of Capitol Hill, depth 33 km, 03:22 Local (1978-10-10 17:22 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (716 km N, Northern Mariana Islands) — 21.647, 145.867

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