Recent studies have examined the potential consequences of a large earthquake occurring along the Cascadia Subduction Zone, a tectonic boundary off the Pacific Northwest coast of the United States. According to the research, such an earthquake could generate a tsunami as high as 1,000 feet, which would pose a serious threat to coastal communities in states such as Washington, Oregon, and Northern California. The study indicates that the earthquake could cause parts of the coastline to subside by as much as 6.5 feet, making the affected areas more vulnerable to flooding and tsunami damage. The Cascadia Subduction Zone is known for its potential to produce very large earthquakes, with historical records and geological evidence suggesting that major seismic events have occurred there in the past. Emergency management agencies have developed response plans for such scenarios, but the scale of a 1,000-foot tsunami would present unprecedented challenges for disaster preparedness and response.