"Unveiling the Hidden Earthquake Threats Looming Over the US"

Scientists have used tree rings to determine that the Puget Lowlands in western Washington, which is now home to over 4 million people, is facing a serious earthquake threat. By analyzing tree rings, researchers discovered evidence of a cluster of earthquakes that occurred about 1,000 years ago, indicating the potential for a repeat event. The earthquakes were either the result of multiple shallow faults rupturing together or twin quakes occurring back-to-back. The findings highlight the need for preparedness in the region, as a significant earthquake could cause severe damage to infrastructure and trigger landslides and local tsunamis.