The Cascadia Subduction Zone

The Cascadia Subduction Zone is a major fault line off the Pacific Northwest coast where the oceanic Juan de Fuca Plate is slowly sliding beneath the North American Plate. This process causes earthquakes and has the potential for a very large, earthquake, called a megathrust quake, which could impact communities in the region. The zone extends from northern California to southern British Columbia, and while it is currently quiet, it can produce significant seismic activity when stress accumulates. Understanding this zone helps prepare for possible future earthquakes, emphasizing the importance of resilient infrastructure and emergency planning.