All About Tsunamis In WA – DNR

Tsunamis have hit Washington in the past, and they will happen again in the future. Click on the icons below to learn about how and where tsunamis occur, how to recognize a tsunami, how to evacuate before a tsunami arrives, and what geologists at the Washington Geological Survey are doing to learn more about these natural hazards.


The Cascadia subduction zone produces a major earthquake every 300 to 600 years. It has already been 320 years since the last magnitude 9 earthquake struck back in 1700.

Tsunamis | WA – DNR

Anyone want to guess when the next 9.0 quake will hit?