John G. Parrish, Ph.D.

John G. Parrish, Ph.D., was appointed the California State Geologist in April 2005. The State Geologist provides technical information and advice to the Governor, State agencies, the professional community, and the public on all issues pertaining to California geology, geologic hazards, engineering geology, and the State's mineral resources. He is the chief administrator of the California Geological Survey (CGS) within the Department of Conservation. In that c​​apacity he ensures that CGS maintains its partnership with the people of California in fulfilling its mission of providing the highest quality geological and engineering expertise and information for the betterment of the State's economy, environment, and its public’s safety.

Dr. Parrish came to the State Geologist position directly from the State Mining and Geology Board (SMGB) where he served for over a decade as the Board's Executive Officer.

Prior to his term at SMGB he was Executive Officer for the State Board of Registration for Geologists and Geophysicists, Department of Consumer Affairs. He has spent twenty years in the private sector in the natural resources industries, most prominently with major international petroleum companies. He has managed geological projects around the world in places such as the United Kingdom, Western Europe, Texas, Colorado, Oklahoma, and California.

Dr. Parrish obtained his Ph. D. in geology from the University of Wales, United Kingdom. He earned a M.S. degree in geology from the University of Houston, Texas and a M.B.A. degree in finance through the California State University system. His B.S. degree in geology is from the University of Redlands, California. Dr. Parrish is a California Registered Geologist. He is a Certified Petroleum Geologist by the American Association of Petroleum Geologists, member of the American Institute of Professional Geologists, the Society for Mining, Metallurgy & Exploration, and is a former President of the Association of American State Geologists. Parrish currently serves on the Board of the Consortium of Organizations for Strong Motion Observational Systems (COSMOS), and is the Chair of the California Earthquake Prediction Evaluation Council (CEPEC).

Contact the California State Geologist

Office of the State Geologist
California Geological Survey

801 K Street, MS 12-30
Sacramento, CA 95814

Phone: (916) 445-1825
Fax: (916) 445-5718