Room: 208A
Date: 4/20/2023
Session Time: 2:00 PM to 5:45 PM (local time)
Constraining Seismic Hazard in the Cascadia Subduction Zone
The Cascadia Subduction Zone is host to a range of significant earthquake and tsunami-related hazards, which have the potential to impact major population centers and coastal communities. Due to the historically low seismicity in this region, it has been difficult to constrain the hazard and risk to nearby communities from earthquakes and their cascading effects. However, in recent years, our understanding of seismic hazard in Cascadia has progressed thanks to advances in instrumentation and modeling and interdisciplinary collaborations. For example, the M9 Project and Cascadia Coastal Hazards Research Coordination Network have integrated geosciences and structural engineering with social science and public policy planning. These have helped to better characterize CSZ seismic hazards, both from great megathrust earthquakes and from the more frequent low-to-moderate magnitude seismicity occurring on nearby crustal faults and in the subducting slab. Additional multidisciplinary efforts are anticipated over the next few years: the draft SZ4D implementation plan calls for additional long-term instrumentation in the Cascadia Subduction Zone and collaborations resulting from a nascent earthquake science center proposal (Cascadia Region Earthquake Science Center, CRESCENT) aim to understand hazards from an interdisciplinary perspective, with stakeholder input.
This session welcomes presentations that address all aspects of earthquake and tsunami hazard in Cascadia, including seismic or geodetic modeling efforts, offshore and onshore observational studies, statistical seismology, probabilistic hazard estimation, early warning and communication and policy planning. We encourage contributions related to intraslab and crustal earthquakes as well as megathrust events.
Conveners
Leah Langer, U.S. Geological Survey (llanger@usgs.gov)
Max Schneider, U.S. Geological Survey (mschneider@usgs.gov)
Erin A. Wirth, U.S. Geological Survey (emoriarty@usgs.gov)
Diego Melgar, University of Oregon (dmelgarm@uoregon.edu)
Valerie Sahakian, University of Oregon (vjs@uoregon.edu)
Oral Presentations
| Participant Role | Details | Start Time | Minutes | Action |
|---|---|---|---|---|
| Submission | A Comparison of Foraminiferal and Diatom-Based Transfer Function Estimates of Coseismic Subsidence During the 1700 Ce Earthquake Along the Oregon and California Coast | 02:00 PM | 15 | View |
| Submission | Investigating the Earthquake Rupture History of the Northern Cascadia Subduction Zone Using Lacustrine Diatoms, Lake Ozette, Washington, Usa | 02:15 PM | 15 | View |
| Submission | Evaluating Turbidite Correlations for Paleoseismology | 02:30 PM | 15 | View |
| Submission | Searching for Empirical Links Between Shaking and Turbidity Current Generation in the Cascadia Subduction Zone | 02:45 PM | 15 | View |
| Submission | Compilation and Assessment of Data Quality for Onshore and Offshore Paleoseismic Proxies of Great Cascadia Megathrust Rupture | 03:00 PM | 15 | View |
| Other Time | Break | 03:15 PM | 75 | |
| Submission | The Role of Transient Deformation in Interseismic Coupling in Cascadia | 04:30 PM | 15 | View |
| Submission | USGS Tsunami Sources Powell Center Working Group on Tsunami Sources: Probabilistic Tsunami Hazard Assessment for the Cascadia Subduction Zone | 04:45 PM | 15 | View |
| Submission | Analyzing Recent Splay Fault Activity in the Cascadia Accretionary Wedge Using High-Resolution Seismic Reflection Data | 05:00 PM | 15 | View |
| Submission | Designing or Upgrading a Seismic Network to Meet Specific Performance Criteria Using Array Modeling, a Case Study for Puget Sound Washington State | 05:15 PM | 15 | View |
| Submission | Challenges in Assessing Site-Specific Seismic Hazards in Cascadia | 05:30 PM | 15 | View |
| Total: | 225 Minute(s) |
Constraining Seismic Hazard in the Cascadia Subduction Zone
Description