M 4.8 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 29, 1981
M 4.8 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 29, 1981. Epicenter 730 km N of Capitol Hill, depth 33 km, 04:54 Local (1981-12-28 18:54 UTC). Readings from every reporting agency, affected towns, aftershock sequence.
Philippine Sea (730 km N of Capitol Hill, Northern Mariana Islands) — 21.436, 143.551
