@article {morton_newly_2018, title = {Newly detected earthquakes in the Cascadia subduction zone linked to seamount subduction and deformed upper plate}, journal = {Geology}, volume = {46}, number = {11}, year = {2018}, month = {09/2018}, pages = {943{\textendash}946}, abstract = {Data from an amphibious seismic network in Cascadia (northwest North America) provide unique near-source observations to assess the influence of subducting topography on seismicity. Using subspace detection, we detect and locate 222 events in two separate clusters, near a subducted seamount and a possibly accreted seamount. Seismicity in both clusters is largely shallower than the plate interface and exhibits occasional swarm-like behavior. This implies that the seamount is subducting aseismically via weak coupling with the overriding plate, while earthquakes in the upper plate arise from a high degree of fracturing due to seamount interaction, and the accreted seamount induced similar fracturing before off-scraping.}, issn = {0091-7613}, doi = {10.1130/G45354.1}, url = {https://doi.org/10.1130/G45354.1}, author = {Morton, Emily A. and Bilek, Susan L. and Rowe, Charlotte A.} }