On the USArray website, find the 'Episodic Tremor and Slip' research. What key finding did this research, utilizing USArray and Plate Boundary Observatory data, reveal about the probable region of strong ground motion during future Cascadia earthquakes?
Navigate to 'usarray.org'. Click on the 'Science' link. Click on the 'Episodic Tremor and Slip' link. Locate and extract the key finding regarding the probable region of strong ground motion during future Cascadia earthquakes.
State that the understanding has changed such that the probable region of strong ground motion during future earthquakes extends 'significantly further inland than had been thought, closer to the large population centers of Cascadia'.