How We Observe, Analyze and Model Fault Creep to Better Understand Plate Boundary Deformation and Hazards

Session ID#: 282440

Session Description:
Not all fault slip occurs during earthquakes. Faults also slip aseismically, or creep, without strong shaking. Creep is observed throughout the earthquake cycle, during interseismic and postseismic periods, through alignment arrays, offset cultural features, strainmeters, creepmeters, characteristic repeating earthquakes, Global Navigation Satellite System and high-resolution remote sensing methods such as InSAR, UAVSAR, optical image correlation and lidar differencing. We invite geologists, geodesists, seismologists and modelers studying bulk deformation, fault mechanics, earthquake dynamics, and seismic cycling to share their work on creeping faults around the world. We encourage submissions with new creep observations and insights into variable constitutive and locking behavior along fault strike and dip, between faults, and over time, as well as studies of the role of off-fault deformation and/or rheology in creep behavior. We also welcome contributions from hazard modelers and engineers highlighting how creep and creep monitoring are considered in seismic and fault displacement hazard evaluations.
Co-Sponsor(s):
  • G - Geodesy
  • NH - Natural Hazards
  • S - Seismology
Index Terms:

1209 Tectonic deformation [GEODESY AND GRAVITY]
7230 Seismicity and tectonics [SEISMOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]
Primary Convener:  Elizabeth H Madden, San Jose State University, Department of Geology, San Jose, CA, United States
Conveners:  Christopher Madugo, Pacific Gas and Electric Company, San Francisco, United States, Christie D Rowe, Nevada Seismological Laboratory, Reno, United States and Hiroki Sone, University of Wisconsin, Geological Engineering Program, Madison, United States
Student/Early Career Convener:  Catherine Hanagan, U.S. Geological Survey, Earthquake Science Center, Golden, United States
See more of: Tectonophysics