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The Odaesan earthquake (ML= 4.8) occurred near Mt. Odae, Jinbu-Myon, Pyongchang-Gun, Kangwon Provinceon January 20, 207. It has a shalow focal depth about 10 km. Its felt area covers most of the southern peninsula exceptsome southern and western inland area. The maximum M intensity was VI in the areas including Jinbu, Doam,Kangreung, Jumunjin, and Pyongchang. In these areas, there was a very strong shaking that caused several cracks on thewalls of buildings and houses, slates falling of the roof, tiles being off the wall, things falling of the desk, and rockP-wave first-motion polarities and SH/P amplitude ratios for each event. The results showed that the main shockrepresented right-lateral strike-slip sense and two aftershocks, reverse sense. It sems that the seismogenic fault may bethe NNE-SSW trending Weoljeongsa fault near the epicenter based on the distribution of epicenters (foreshock, mainshock, and aftershocks), damage area, and fault plane solution. The distribution of the epicenters indicates that the lengthof the subsurface rupture is estimated to be about 2 km.......... Odaesan earthquake, intensity, fault plane solution, strike-slip sense, seismogenic fault. . : 2007. 1. 20. ... ... ... .... ... ... .. (ML=4.8). .... (.... . 10 km)