New dates for landslides reveal past Seattle fault earthquakes
New maps of more than 1,000 deep-seated landslides in the Puget Lowlands of Washington State provide evidence of the last major earthquake along the Seattle Fault about 1,100 years ago -- and may also hold traces of older earthquakes along the fault.
https://www.sciencedaily.com/releases/2023/11/231107172613.htm