- Tree-ring analysis from ancient Douglas fir trees in Oregon offers valuable insights into the occurrence of past tsunami events along the Pacific Northwest coastline.

- Research conducted by scientists suggests that the region has experienced around 42 major tsunami events in the past 10,000 years.

- These tsunamis often originated from distant sources, such as earthquakes in Japan and Alaska.

- The findings contribute to a better comprehension of the region's tsunami hazard risks.