Project Grant 2618025
- 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 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...
- 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...
- 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 $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...
- This National Science Foundation (NSF) Project Grant award under the Geosciences program (CFDA 47.050) supports a collaborative research project between the University of California, Santa Cruz (UCSC) and Hebrew University to directly measure fault rupture dynamics and seismic wave propagation in a laboratory setting. The $399,601 award, effective from August 1, 2024 to July 31, 2027, will leverage specialized laboratory equipment to conduct high-speed imaging and in-situ seismogram...
- The National Science Foundation Office of Integrative Activities awarded $537,000 to the University of California San Diego's Scripps Institution of Oceanography on August 15, 2026, under the Geosciences program to develop new approaches to earthquake stress drop estimation and quantify variations in high-frequency seismic radiation. The research will improve systematic analysis of earthquake behavior by addressing inconsistencies in stress-drop measurements across scientific groups and...
- 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 awarded the University of California Santa Cruz a $101,601 project grant under the Geosciences federal grant program (CFDA 47.050) from July 2023 to June 2026. The grant will fund collaborative research to determine the influence of temperature on the strength and stability of fault zone materials through deformation experiments and high-resolution microscopy. Researchers will examine how microscopic mechanisms control fault material strength at high...
- The National Science Foundation Division of Earth Sciences awarded the University of Southern California $281,089 on August 1, 2026, under the Geosciences program (CFDA 47.050) to document system-level behavior of the Pacific-North America plate boundary fault network in Southern California through detailed incremental fault slip rate records for the San Andreas, San Jacinto, and Elsinore Faults, which collectively accommodate 75–80 percent of total North America-Pacific relative plate motion....
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 element geochemistry, the project will fingerprint and match lithologies within the fault zones to sedimentary units on the incoming plate. Organic biomarker thermal maturity analysis will map localized temperature rises to determine which fault strands experienced earthquake slip, the magnitude of slip, and frictional energy expended. Potassium/argon dating will establish whether all fault strands failed during the Tohoku earthquake or whether some remain inactive. The research 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 complexity acts as an energy sink inhibiting rupture propagation. The project will provide research opportunities and training for undergraduate and graduate students. Performance occurs at Santa Cruz, California, with a period of performance from September 1, 2026 through August 31, 2029.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | $357.0k | 7/27/26 |