George Mader

“I’ve seen terrible destruction from earthquakes. Over and over. It’s very sobering,” says George Mader. He became involved with GeoHazards International 25 years ago, because of its focus on planning and disaster prevention. Mr. Mader served on the Board of Advisors prior to joining the Board of Trustees in 2007.


George Mader was president of Spangle Associates Inc., Urban Planning and Research, where since 1962 he pioneered the use of geologic hazard data in land-use planning. He collaborated with earth scientists to develop ways of mitigating risk. It included research funded by USGS, NSF and FEMA. His work took him to Turkey, Yugoslavia, Algeria, China, Japan, Italy, Mexico, and Ecuador. For 45 years, he was also the town planner for Portola Valley, a community crossed by the San Andreas Fault.


His public service has included: the California Earthquake Safety Foundation, 1985-2001; the Policy Advisory Board for the Bay Area Regional Earthquake Preparedness Project, 1984-1992; and the Seismic Safety Commission of California, 1975-1984 (chairman 1979-1981). He chaired the Land Use Advisory Group, Joint-Legislative Committee on Seismic Safety for California, 1969-1974. He received the “1992 Award for Excellence in Teaching” from the School of Earth Sciences, Stanford University, where he was a Senior Lecturer for thirty years (1970-2000), and in 2003 he was elected to the College of Fellows of the American Institute of Planners. In 2014, Earthquake Engineering Research Institute published a book about Mr. Mader’s contributions to the field in “Connections, the EERI Oral History Series: George G. Mader.”

For the George Mader Fund for a Safer Environment, see

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GeoHazards International

687 Bay Road, Menlo Park,

California 94025, USA

(650) 614-9050

We are a 501(c)(3) nonprofit organization



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