Project Grant 2618027
- The National Science Foundation Division of Ocean Sciences awarded the University of California Santa Cruz $357,000 on September 1, 2026, under the Geosciences program (CFDA 47.050) to investigate fault slip associated with the 2011 Tohoku-Oki earthquake. The work analyzes fault-zone samples recovered from hundreds of meters below the seafloor at three core sites on the plate boundary fault. The sites are 30 meters apart but show fault-zone thickness varying from 1 to 15 meters. Using trace...
- The National Science Foundation Division of Ocean Sciences awarded The Trustees of Columbia University in the City of New York $359,522 on September 1, 2026, under the Geosciences program to investigate fault slip associated with very large earthquakes using samples recovered from the Tohoku-Oki earthquake fault zone. The project analyzes three cores extracted hundreds of meters below the seafloor from the plate boundary fault zone, with sample sites only 30 meters apart but fault zone thickness...
- The National Science Foundation Office of Integrative Activities awarded Cornell University $504,577 on September 1, 2026, under the Geosciences program (CFDA 47.050) to monitor fault zone fluid flow and earthquake hazards using subseafloor observatories in the Japan Trench subduction zone. The research analyzes data from borehole observatories installed at International Ocean Discovery Program Site C0019 during NSF-supported IODP Expedition 405 in 2024. Dense temperature sensor strings deployed...
- This Project Grant from the National Science Foundation Division of Earth Sciences, under the Geosciences federal grant program (CFDA 47.050), provides $355,358 to San Diego State University Research Foundation to develop a fully-coupled model of dynamic rupture, wedge plasticity, and tsunami for great earthquakes in the Japan Trench. Specifically, the awardee will (1) develop a dynamic rupture model of the 2011 Tohoku earthquake that can explain key observations, (2) simulate prior Sanriku...
- The National Science Foundation Office of Integrative Activities awarded $223,204 to the University of Nevada, Las Vegas on August 1, 2026, for collaborative geologic research investigating Eocene arc initiation during plate reorganization in southern Alaska under the Geosciences program. The research team will collect detailed sedimentologic and structural field data and bedrock and modern river sand samples from the ~50- to 25-million-year-old Aleutian-Meshik arc and forearc basin on the...
- Northern Arizona University received a $318,336 Project Grant award from the National Science Foundation Division of Ocean Sciences on June 15, 2021 to fund research examining the impact of horst and graben subduction on sediment flux and shallow décollement geometry in the Japan Trench. The award will support this research project through May 31, 2024. The National Science Foundation Geosciences program (CFDA #47.050) aims to strengthen the national scientific enterprise through expanding...
- The National Science Foundation Office of Integrative Activities awarded the University of New Mexico $743,813 on September 1, 2026, under the Geosciences program (CFDA 47.050) to image the plate interface across the 1964 Alaska earthquake rupture zone and determine the causes for changes in slip behavior between locked and creeping sections of the megathrust. The project will acquire long-offset multichannel seismic reflection and wide-angle ocean bottom seismometer data spanning the entire...
- This $128,052 Project Grant awarded by the National Science Foundation's Geosciences Program (CFDA 47.050) aims to estimate fault slip rates across the Japan fault system over the past 25 years. The research, led by investigators at Smith College and Harvard University, will combine 3D fault system models with statistical tracking techniques to provide a comprehensive understanding of how fault movements are interconnected over time and space, including variations in slip rates between large...
- 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 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 Ocean Sciences awarded the Board of Regents of Nevada System of Higher Education (operating as University of Nevada, Reno) $182,990 on September 1, 2026, to investigate fault slip associated with very large earthquakes, specifically the 2011 Tohoku-Oki earthquake. The award funds analysis of fault zone samples recovered from hundreds of meters below the seafloor at three core sites on the plate boundary fault, sites separated by 30 meters but exhibiting fault zone thickness ranging from 1 to 15 meters. The research employs trace element geochemistry to match lithologies within the fault zones to sedimentary units on the incoming plate, organic biomarker thermal maturity analysis to map localized temperature rise and identify which fault strands experienced earthquake slip and the magnitude of that slip, and potassium/argon dating to determine whether all faults failed during the Tohoku earthquake or whether some strands remain inactive. The work addresses three questions: how structural complexity affects spatial distribution of earthquake slip within a plate boundary fault, how that complexity evolves over time, and whether structural complexity acts as an energy sink that inhibits rupture propagation. The research will provide training for undergraduate and graduate students. Performance occurs in Reno, Nevada with a period of performance from September 1, 2026, through August 31, 2029. The award is a Project Grant under the NSF Geosciences program (CFDA 47.050), which supports fundamental research in atmospheric, earth, and ocean sciences.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | $183.0k | 7/27/26 |