Evolution of fault zone properties through the seismic cycle
Evolution of fault zone properties through the seismic cycle
Session ID#: 282148
Session Description:
Fault zone frictional and transport properties evolve throughout the seismic cycle, with rapid changes during earthquakes and longer-term modification through healing and rock alteration during post- to interseismic periods. This session focuses on spatio-temporal evolution of fault zone properties, emphasizing both frictional and cohesive healing within the fault core and the surrounding damage zone. We highlight processes operating over coseismic to interseismic timescales and across the full range of crustal depths, from shallow brittle environments to deeper ductile regimes. Contributions exploring hydro-thermo-chemo-mechanical interactions—including fluid flow, fluid-rock reactions, mineral precipitation, microstructural recovery, and off-fault deformation—are particularly encouraged. We invite interdisciplinary and multiscale studies integrating field observations, laboratory experiments, seismology, geodesy, remote sensing, and numerical modeling to advance understanding of how healing processes influence fault strength, permeability, and earthquake recurrence. This session aims to bridge spatial and temporal scales to better constrain how fault zones recover, evolve, and condition future seismic behavior.
Co-Sponsor(s):
- G - Geodesy
- MR - Mineral and Rock Physics
- S - Seismology
Index Terms:
5104 Fracture and flow [PHYSICAL PROPERTIES OF ROCKS]
7209 Earthquake dynamics [SEISMOLOGY]
8045 Role of fluids [STRUCTURAL GEOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
Primary Convener: Zachary Daniel Smith, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States
Conveners: Simone Masoch, University of Nevada Reno, Nevada Seismological Laboratory, Reno, United States, Caroline Seyler, University of Southern California, Department of Earth Sciences, Los Angeles, United States and Jared Thomas Bryan, Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, United States
See more of: Tectonophysics