How Scientists Solved the Mystery of a 300-Year-Old Megaquake

The 1700 Cascadia earthquake and tsunami was a massive natural disaster that reshaped the Pacific Northwest. Through tree rings, soil layers, and international collaboration, scientists have pieced together the exact timing of the event. As the region braces for another quake, can we prepare in time? Find out how new models and tsunami evacuation towers are helping coastal communities face the threat. ***** PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateTerra ***** Subscribe to PBS Terra so you never miss an episode! https://bit.ly/3mOfd77 And keep up with PBS Terra on: Facebook: https://facebook.com/pbsdigitalstudios Tiktok: https://www.tiktok.com/@pbsterra Instagram: https://instagram.com/pbsterra