The National Science Foundation (NSF) awarded a $274,364 Project Grant to the University of North Carolina at Wilmington (UNCW) under its Geosciences program (CFDA 47.050). The objective of this 3-year award, commencing on May 1, 2024, is to conduct a comprehensive study of the Cascadia subduction zone, focusing on seismic and tsunami activity around the year 1700 CE.
UNCW will carry out high-resolution mapping of paleotsunami deposits at two key locations along the Cascadia subduction zone and execute thousands of advanced tsunami inundation models. This research aims to test hypotheses about earthquake slip distributions that can explain field observations, addressing gaps in the current understanding of tsunami deposit distribution. The results will delineate the full extent of past tsunami inundation with high resolution, helping to validate or exclude different earthquake scenarios and contribute to a more precise understanding of the Cascadia subduction zone's seismic behavior. This work is fundamental for accurate seismic and tsunami hazard mapping, with wide-ranging implications for public safety and emergency preparedness in the Pacific Northwest region.
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