Project Grant 2618026
- 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 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 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...
- The National Science Foundation Division of Ocean Sciences awarded The Trustees of Columbia University in the City of New York $118,653 on September 1, 2026, under the Geosciences program (CFDA 47.050) to image the plate interface across the 1964 Alaska earthquake rupture zone. The project will acquire long-offset multi-channel seismic reflection and wide-angle ocean bottom seismometer data spanning the entire rupture zone of the magnitude 9.2 1964 Alaska subduction zone earthquake—the largest...
- 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 Division of Earth Sciences awarded the University of Washington $410,900 on August 1, 2026, through the Geosciences program (CFDA 47.050) to investigate the structure and properties of the Cascadia plate interface by analyzing exhumed paleo-megathrust fault systems in the Olympic Mountains of Washington State. The research team will examine fossil fault rocks to characterize the signature of earthquake processes and map fault geometry in detail, focusing on...
- 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 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...
- This $358,605 Project Grant awarded by the National Science Foundation's Geosciences Program (CFDA 47.050) will support research to elucidate the links between the material properties of oceanic transform faults and their variable slip behavior, which can involve both aseismic and seismic slip. The project will analyze rock samples from two contrasting transform faults - the slow-slipping Chain Fault and the fast-slipping Gofar Fault - to determine how fault zone composition, hydrothermal...
- The National Science Foundation Division of Earth Sciences awarded Massachusetts Institute of Technology $220,796 on August 1, 2026, under the Geosciences program (CFDA 47.050) to conduct laboratory experiments simulating deformation in subduction zones and connecting material failure to seismic signals. The recipient will conduct experimental work that mixes brittle and ductile materials to model subduction-zone deformation, recording acoustic emissions when material breaks during controlled...
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 varying from 1 to 15 meters. Trace element geochemistry 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 faults failed during the Tohoku earthquake or whether some strands remain inactive after long periods without failure. The work addresses three core questions: how structural complexity affects spatial distribution of earthquake slip within the plate boundary fault; how that complexity evolves over time; and whether it acts as an energy sink that potentially inhibits rupture propagation. The project will provide research opportunities and training for undergraduate and graduate students. Work is performed in New York, New York, with a period of performance from September 1, 2026, through August 31, 2029.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | $359.5k | 7/27/26 |