Abstract Recent field studies provide evidence of fault slip-rate variability over time periods 10–100 k.y., yet researchers do not know how processes internal to the system (e.g., reorganization) impact records slip rates. In this study, we directly observed fault-system evolution and measured histories within a scaled physical experiment dextral strike-slip 15° restraining bend representative...

s related to this work Cooke, Michele and Susan Owen, Comparing Mechanical and Geodetic Models of Los AngelesBasin Faults, SCEC Annual Meeting, Oxnard, 2001. ReferencesArgus, D. F., M. Heflin, A. Donnellan, F. Webb, D. Dong, K. Hurst, D. Jefferson, G. Lyzenga, M.Watkins, and J. Zumberge, Shortening and thickening of metropolitan Los Angeles measuredand inferred by using geodesy,...

Inversions of InSAR ground deformation in the Delaware Basin have revealed an aseismic slip on semi-optimally oriented normal faults located close to disposal wells. The slip, occurring over 3–5 years, extends approximately 1 km down-dip, 10 along strike, and reaches 25 cm. We develop calibrate 2D pseudo-3D coupled pore pressure diffusion rate-state models with velocity-strengthening friction t...

The trifurcation area of the San Jacinto fault zone has produced more than 10% of all earthquakes in southern California since 2000, including the June 2016 Mw (moment magnitude) 5.2 Borrego Springs earthquake. In this area, the fault splits into three subparallel strands and is associated with broad VP /VS anomalies. We synthesize spatiotemporal properties of historical background seismicity a...

Lake Urmia in northwestern Iran is one of the hypersaline lakes of world. In the Urmia region a Cenozoic island arc was formed by northeastward subduction of Neo-Tethyan oceanic plate beneath central Iran; the lake is therefore located in the fore-arc basin tectonic setting. Satellite imagery of the Urmia region illustrates that the trend of faults are in two main NE-SW and NW-SE directions. Th...