Uncovering the Origins of Seattle's Deadly Fault: Implications for Predicting Future Earthquakes

A new study proposes an origin story for the Seattle fault, suggesting that around 55 million years ago, an island chain was pulled toward the continent, leading to a major ancient fault that set the geologic stage for the modern Seattle fault. The study's findings provide valuable details about the bedrock under the Seattle basin, aiding in more accurate models of future ground shaking in the area and potentially improving hazard modeling for the densely populated region.