Greg S. Hardy
Senior Principal
Simpson Gumpertz & Heger
Los Angeles, California



Greg Hardy investigates the effects of earthquakes and the risk potential of future earthquakes using computer simulations, particularly in the case of nuclear power plants. These models help fill out our understanding of safety and structure, alongside laboratory measurements and tests.

Hardy was hired to investigate seismic risk assessment for the Darlington Nuclear Generating Station in Toronto, Canada and the effects of the 2007 Niigataken Chuetsu Oki earthquake on the Kashiwazaki-Kariwa Nuclear Power Plant, the world’s largest nuclear power plant. That quake measured 6.8 on the Richter scale.

“The Japanese fell behind,” Mr. Hardy said after a tsunami of unanticipated size damaged the Fukushima Daichii nuclear plant, according to a March 2011 story in The New York Times. “Once they made the proclamation that this was the maximum earthquake, they had a hard time re-evaluating that as new data came in.”

Hardy heads his firm’s Los Angeles Structural Mechanics division and has more than 30 years of experience in engineering mechanics, a career that’s included natural hazards probabilistic risk assessments, earthquake studies, as well as stress and aircraft impact analysis. He has consulted for the Electric Power Research Institute, the International Atomic Energy Agency, and the U.S. Nuclear Regulatory Commission.