M 4.6 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 29, 1981

M 4.6 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 29, 1981. Epicenter 730 km N of Capitol Hill, depth 33 km, 06:59 Local (1981-12-28 20:59 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (730 km N of Capitol Hill, Northern Mariana Islands) — 21.427, 143.514

EarthquakeLive.org