M 4.9 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 29, 1981

M 4.9 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 29, 1981. Epicenter 734 km N of Capitol Hill, depth 59 km, 01:40 Local (1981-12-28 15:40 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (734 km N of Capitol Hill, Northern Mariana Islands) — 21.5, 143.643

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