John Cassidy (seismologist)

John Cassidy is a Canadian seismologist specializing in earthquake hazards and seismotectonics, primarily focusing on Western Canada. He is currently a seismologist with Natural Resources Canada (NRCan), working at the Pacific Geoscience Centre (PGC) in Sidney, British Columbia.

Cassidy's research involves studying the seismicity of the Cascadia subduction zone, the Queen Charlotte Fault, and other areas of seismic activity in British Columbia and Yukon. His work contributes to understanding the potential for large earthquakes in the region, including the megathrust earthquakes that could occur along the Cascadia subduction zone. He is involved in earthquake monitoring, data analysis, and public education about earthquake preparedness.

His expertise is frequently sought by media outlets for explanations of earthquakes occurring in the region, their potential impacts, and earthquake safety measures. He is also actively engaged in communicating earthquake risks to the public and working with emergency management organizations to improve community resilience to seismic events.

Cassidy has authored and co-authored numerous scientific publications related to seismology and earthquake hazards in Canada. He holds advanced degrees in geophysics.