Earthquake expert whose research enhanced public safety dies at 85

Wilfred D. “Bill” Iwan, an ASCE Distinguished Member who was an innovator in engineering seismology and professor emeritus of civil engineering at California Institute of Technology, has died. He was 85.

If a single person can be said to have ensured that we knew when or where an earthquake could strike, it was he.


Iwan, Ph.D., Dist.M.ASCE, NAE, began and ended his career at Caltech. After earning three degrees from the school, he joined its faculty in 1964. Iwan served as the executive officer for Civil Engineering and Applied Mechanics in the Division of Engineering and Applied Science

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