M 4.6 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 30, 1981

M 4.6 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 30, 1981. Epicenter 729 km N of Capitol Hill, depth 33 km, 02:11 Local (1981-12-29 16:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (729 km N of Capitol Hill, Northern Mariana Islands) — 21.438, 143.602

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