Introducing the Science Goals for the Cascadia Region Earthquake Science Center (Crescent) Cascadia Paleoseismology Working Group (Cpal)
Description:
Funded in 2023 by the National Science Foundation, the Cascadia Region Earthquake Science Center (CRESCENT) is the nation’s first subduction zone earthquake hazards center. The goals of CRESCENT are todevelop a better foundational understanding of Cascadia subduction zone earthquakes, promote diversity and train the next generation of geoscientists, and provide a systematic approach to collaboration between researchers in academia and government agencies with mandates to provide hazard information to the public. A fundamental challenge in characterizing hazards along the Cascadia subduction zone is the lack of an instrumentally recorded megathrust earthquake. Due to this limitation, we must rely on paleoseismic studies to characterize the frequency, timing, and associated coseismic displacement of prehistoric Cascadia earthquakes. Under CRESCENT, the Cascadia Paleoseismology Working Group (CPAL) will employ detailed stratigraphic mapping of subsidence and tsunami evidence and new high-resolution analysis of cores including CT scanning, geochemical, and microfossil analyses to reconstruct coseismic land-level change and tsunami inundation during past Cascadia subduction zone earthquakes. To help build larger quantitative paleoseismic datasets of subsidence along the Cascadia subduction zone, CPAL will develop a shared, community-built diatom and foraminifera database that will increase accessibility and standardize microfossil analysis. CPAL will also work with the members of the USGS Powell Center Cascadia Earthquake Hazards group to develop and expand an online database of geologic observations that provide evidence for subsidence, shaking, and ground failure from past Cascadia subduction zone earthquakes and inundation from associated tsunamis. CPAL will directly collaborate with modelers to integrate the new and improved quantitative paleoseismic datasets and utilize the database of geologic observations to validate numerical models of subduction zone earthquakes and tsunamis and better assess hazards along the Cascadia subduction zone.
Session: From Faults to Fjords: Earthquake Evidence in Terrestrial and Subaqueous Environments [Poster Session]
Type: Poster
Date: 5/1/2024
Presentation Time: 08:00 AM (local time)
Presenting Author: Tina
Student Presenter: No
Invited Presentation:
Authors
Tina Dura Presenting Author Corresponding Author tinadura@vt.edu Virginia Tech |
Andrea Hawkes hawkesa@uncw.edu University of North Carolina Wilmington |
Robert Witter rwitter@usgs.gov U.S. Geological Survey |
Lydia Staisch lstaisch@usgs.gov U.S. Geological Survey |
Harvey Kelsey Harvey.Kelsey@humboldt.edu California State Polytechnic University, Humboldt |
Eileen Hemphill-Haley Eileen.Hemphill-Haley@humboldt.edu California State Polytechnic University, Humboldt |
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Introducing the Science Goals for the Cascadia Region Earthquake Science Center (Crescent) Cascadia Paleoseismology Working Group (Cpal)
Session
From Faults to Fjords: Earthquake Evidence in Terrestrial and Subaqueous Environments