The basaltic lava flows produced from four monogenetic vents near Mount Jefferson indicate that the local region could produce future eruptions and could be considered active. Mount Jefferson itself is listed with a Low/Very Low threat potential by the United States Geological Survey, but the agency has noted that it may be too soon to regard Mount Jefferson as extinct. In a 1987 report, Richard P. Hoblitt and other USGS scientists estimated that the yearly likelihood for a major explosive eruption at Jefferson does not exceed 1 in 100,000. However, given the incomplete geologic record, imprecise dating of its known deposits, and its lack of relatively recent activity, scientists from the United States Geological Survey have commented that It is almost impossible to estimate the probability of future eruptions at Mount Jefferson. They have designated proximal and distal hazard zones for the volcano, which extend and several tens of miles, respectively.