Project Grant 2618837
- The National Science Foundation Office of Integrative Activities awarded Utah State University $355,007 on January 1, 2027, under the Geosciences program (CFDA 47.050) to conduct integrated experimental and modeling research on subduction zone earthquake controls through December 31, 2029. The project develops a system to distinguish whether subduction zone faults build energy for infrequent large earthquakes and tsunamis or release stress through small events and slow sliding. Research measures...
- The National Science Foundation Division of Earth Sciences awarded the University of Texas at Austin $320,400 on August 1, 2026, under the Geosciences program (CFDA 47.050) to investigate why earthquake foreshocks are rare in nature. The research uses meter-scale fault experiments with arrays of strain gauges and fault slip sensors to detect and measure nucleation zone expansion and couple its evolution to spatiotemporal changes in foreshocks. The project will quantify the coupling between...
- The National Science Foundation Office of Integrative Activities awarded the University of Texas at Austin $425,000 on August 1, 2026, under the Geosciences program (CFDA 47.050) to develop a probabilistic fault system model based on a cross-validated, second-order damage evolution framework for large continental fault systems. The project develops a new modeling approach to capture uncertainty in fault network behavior, treating faults not merely as fixed geometric features but as systems...
- The National Science Foundation awarded a $167,851 project grant to the University of Texas at Austin under the Geosciences program (CFDA 47.050) for research titled "Collaborative Research: The Role of Subducting Seamounts in Fault Stability and Slip Behavior Throughout the Seismic Cycle." The two-year award beginning September 1, 2021 will support basic research into understanding the integrated Earth system through studying the influence of underwater volcanoes on fault behavior and...
- The National Science Foundation (NSF), through its Geosciences program (CFDA 47.050), awarded a $272,664 project grant to the University of Texas at Austin to conduct collaborative research on subduction megathrust rheology. The research aims to quantify how the deformation behavior and spatial heterogeneity of subduction zone rocks affect fault slip behavior, including the occurrence of slow earthquakes and slip events. The project will involve new laboratory experiments on subduction zone...
- This Project Grant from the National Science Foundation's Geosciences program (CFDA 47.050) provides $352,839 to the University of Texas at El Paso from April 2021 through September 2023. The funding supports analysis of a high-quality aftershock data set from the 2017 Tehuantepec (M8.2) offshore Mexico earthquake. As part of basic research into integrated earth systems, the University will leverage the unique data to gain insights into seismic processes within subduction zones. Results from the...
- The National Science Foundation Office of Integrative Activities awarded Woods Hole Oceanographic Institution $428,486 on September 1, 2026, under the Geosciences program (CFDA 47.050) to establish relationships between tectonic features and seismic hazards at subduction zones. The research uses state-of-the-art plate tectonics models and mathematical methods to map connections between seafloor tectonic structures and earthquake locations at subduction zones, with initial focus on the Aleutians,...
- This two-year, $354,309 project grant from the National Science Foundation's Geosciences program (CFDA 47.050) supports research to develop a new three-dimensional subsurface framework model of the Cascadia subduction zone in the Pacific Northwest. The awardee, the University of Texas at Austin, will analyze seismic data collected during the 2021 Cascadia Seismic Imaging Experiment to study the geometry of the plate interface along the margin, variations in plate interface properties, the...
- This $518,605 National Science Foundation project grant under the Geosciences program (CFDA 47.050) will fund collaborative research to quantify strain and fluid flow along subduction interfaces. Penn State University will lead efforts to characterize chemical and mechanical processes controlling the healing of subduction zones between large earthquakes. Researchers will study ancient subduction exposures in Japan and Alaska spanning depths of 8-20 km and temperatures of 150-350°C. Electron...
- The University of Texas at Austin received a two-year, $292,433 Project Grant award from the National Science Foundation Division of Earth Sciences. The grant funds basic research examining the impact of upper-plate splay faults on stress state and strength of the megathrust and fluid budgets in accreting sediments. This research directly supports the goals of the NSF's Geosciences program (CFDA 47.050) to strengthen understanding of the integrated Earth system through support of basic...
The National Science Foundation Office of Integrative Activities awarded the University of Texas at Austin $454,855 on January 1, 2027 under the Geosciences program (CFDA 47.050) to conduct integrated experimental and modeling research on subduction zone earthquake controls. The project will develop a system to distinguish whether shallow subduction faults build energy for infrequent large earthquakes and tsunamis or release stress through small events by measuring the rates of fault healing relative to tectonic loading. The work integrates laboratory frictional healing experiments with finite element modeling to test whether competition between these two processes explains observed global diversity in shallow interseismic locking versus creep behavior. Results will inform interpretation of seafloor measurements and contribute to seismic and tsunami hazard assessments. The research will support training of multiple graduate and undergraduate students, with undergraduate participants designing an interactive exhibit on subduction earthquakes for the Utah State University Geosciences Museum to communicate the science to the public. Performance takes place in Austin, Texas, with a period of performance from January 1, 2027 through December 31, 2029. The project addresses controls on near-trench strain accumulation, potential for coseismic slip to the trench, and tsunamigenesis along shallow subduction megathrusts.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | $454.9k | 7/20/26 |