Author Archives: Chesley Williams

About Chesley Williams

Senior Director, Product Management

Chesley manages the commercial development of the RMS earthquake and tsunami models for the Asia-Pacific region with a focus on Japan, Taiwan, and South Korea. Chesley joined the Model Development Group at RMS in 1995, with expertise in developing seismic source models and the study of earthquake ground motion.

Through her tenure at RMS, Chesley was the model development lead for key products including the 2009 RMS North American Earthquake Models and the earthquake models for Europe, Japan, and Chile. Chesley has recently shifted roles from model development to product management to use her years of experience at RMS to facilitate strategic product development, product marketing and product management.

Chesley holds a MS in geophysics from Stanford University, where she specialized in ground deformation associated with the 1989 Loma Prieta earthquake.

2018: The Year of the Earthquake Apocalypse?

You may have noticed recent headlines making some scary apocalyptic 2018 earthquake predictions. Scientific thinking generally evolves slowly and thoughtfully. A headline that proclaims a revolutionary or shocking change in our understanding of earthquakes is likely overstating the certainty of a hypothesis, or may be a misinterpretation that is sensationalized by the media. In such cases, it is always best to go back to the original source of information.

These headlines are based on an article published back in August in Geophysical Research Letters entitled Do Weak Global Stresses Synchronize Earthquakes?

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