Project Grant 2618836
- 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...
- The National Science Foundation Division of Earth Sciences awarded the University of Utah $210,713 on January 1, 2026, under the Geosciences program (CFDA 47.050) to conduct experimental research assessing the roles of wear and roughness on dynamic fault friction. The project will advance earthquake physics through controlled laboratory experiments using a specialized deformation apparatus to explore mechanisms regulating fault friction during seismic slip. The work includes experimental...
- 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 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,...
- The National Science Foundation Division of Earth Sciences awarded the University of California Santa Cruz $406,808 on March 1, 2027, under the Geosciences program (CFDA 47.050) to conduct friction experiments on clay-rich materials from the Cascadia subduction zone under in situ pressure-temperature-fluid chemistry conditions. The research pairs laboratory friction testing using Ocean Drilling Program core samples with numerical quasidynamic earthquake cycle models to evaluate long-term...
- This National Science Foundation (NSF) Division of Earth Sciences Project Grant, awarded to the University of California Santa Cruz (UCSC), aims to advance the understanding of subduction fault and earthquake mechanics. Through a combination of new experiments on subduction zone rocks and numerical modeling, the project will investigate how the rheology (deformation behavior) of the megathrust fault zone, and the heterogeneity within it, affect fault slip behavior. Additionally, the project will...
- The National Science Foundation Division of Earth Sciences awarded Iowa State University of Science and Technology $402,989 on August 1, 2026, under the Geosciences program (CFDA 47.050) to conduct laboratory experiments simulating deformation in subduction zones. The research will combine brittle and ductile materials in controlled experiments to replicate the conditions where tectonic plates move beneath one another, recording acoustic emissions when material fractures during deformation. By...
- 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 $174,000 two-year project grant from the National Science Foundation Division of Earth Sciences aims to advance understanding of episodic tremor and slip in subduction zones. Funded under the Geosciences program (CFDA 47.050), which supports basic research to strengthen knowledge of the integrated Earth system, this award will fund research into the role of metasomatic alteration in subduction zone seismic phenomena from September 2021 through August 2023. The grantee, located in Seattle,...
- The National Science Foundation (NSF) awarded a Project Grant of $158,159 to the University of Hawaii at Manoa on January 15, 2024 through its Integrative Activities (CFDA 47.083) program. The grant will fund a collaborative research project to investigate the relationship between the structure of the Alaska-Aleutian subduction zone and megathrust earthquake characteristics. The project will utilize seismic data from community experiments to develop high-resolution models of the plate interface,...
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 relative rates of fault healing versus tectonic loading to predict shallow interseismic locking behavior globally. The work integrates laboratory frictional healing experiments with finite element modeling to test the hypothesis that competition between fault healing and tectonic loading explains observed differences in shallow interseismic locking versus creep. Results interpret seafloor measurements and contribute to subduction hazard assessments. The project supports training of graduate and undergraduate students; undergraduate participants help design an interactive exhibit on subduction earthquakes for the Utah State University Geosciences Museum for public education. Performance occurs in Logan, Utah.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | $355.0k | 7/20/26 |