On the USArray website, explain how research on 'Episodic Tremor and Slip,' utilizing USArray and Plate Boundary Observatory data, has changed the understanding of strong ground motion during future Cascadia earthquakes. Additionally, identify the lead author and publication year of the cited Abers et al. work related to this finding.
Navigate to 'usarray.org'. Click on the 'Science' link. Click on the 'Episodic Tremor and Slip' link. Locate and extract the description of how the probable region of strong ground motion extends. Identify and extract the lead author and year of the Abers et al. 2009 publication.
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'. Identify 'Abers' as the lead author and '2009' as the publication year for the cited work.