M 5.1 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 27, 1978

M 5.1 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 27, 1978. Epicenter 312 km NE of Capitol Hill, depth 54 km, 22:48 Local (1978-12-27 12:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (312 km NE, Northern Mariana Islands) — 17.739, 147.026

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