Jonathan is an Emeritus at the Tucson office of the Geology, Minerals, Energy, and Geophysics Science Center. He received a PhD degree in geology from Stanford University in 1978. Since joining the USGS in 1977, he has performed a variety of applied- and basic-research investigations.
Among these, his research into the long-term history of the San Andreas Fault in southern California stands out.
Education and Certifications
Ph.D., Geology, Stanford University, 1978
M.S., Geology, University of California, Riverside, 1971
B.S., Geology, University of California, Riverside, 1969
Affiliations and Memberships*
San Bernardino National Forest
San Gorgonio Pass Water Agency
San Bernardino Valley Municipal Water Agency
U.S. Bureau of Land Management
Joshua Tree National Park,
San Bernardino County Geologist
Riverside County Geologist
Southern California Earthquake Center (SCEC)
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government