M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 30, 1973

M 4.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 30, 1973. Epicenter 424 km NE of Capitol Hill, depth 55 km, 12:15 Local (1973-12-30 02:15 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (424 km NE, Northern Mariana Islands) — 18.724, 147.298

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