Following the devastating 2008 Wenchuan earthquake that ruptured the central–northern segments of the Longmenshan fault in Sichuan, China, many studies assessed its impact on other major faults in this region (e.g., Parsons et al., 2008; Toda et al., 2008). On 20 April 2013, theMw 6.6 Lushan earthquake ruptured the southern segment of the Longmenshan fault, allowing these assessments to be test...

We modeled the source rupture process of the 20 September 1999 ChiChi, Taiwan, earthquake (Mw 7.6) using an integrated dataset of near-field strong ground motion and Global Positioning System observations. This large inland thrust earthquake produced a surface break more than 80 km long along the Chelungpu fault. The event triggered over 700 strong-motion instruments on the island of Taiwan. Th...

[1] Harris and Day [2005] (hereinafter referred to as HD) concluded from some numerical simulations and low resolution analysis of 8 M4-M6 earthquakes near Parkfield, CA, that material contrast in fault zone structures is not important for earthquake propagation direction. The limited theoretical and observational results of HD do not justify such a general conclusion. Considerations of a large...

Our research focuses on computational techniques to understand the dynamics of space-time patterns in driven threshold systems, particularly on earthquake fault systems. We discuss the scientific and computational formulation of strategies for understanding such spacetime patterns, leading optimistically to earthquake forecasting and prediction. In particular, we describe pattern dynamics techn...

The Landers earthquake, which had a moment magnitude (M(w)) of 7.3, was the largest earthquake to strike the contiguous United States in 40 years. This earthquake resulted from the rupture of five major and many minor right-lateral faults near the southern end of the eastern California shear zone, just north of the San Andreas fault. Its M(w) 6.1 preshock and M(w) 6.2 aftershock had their own a...

Coseismic surface deformation in large earthquakes is typically measured using field mapping and with a range of geodetic methods (e.g., InSAR, lidar differencing, and GPS). Current methods, however, either fail to capture patterns of near-field coseismic surface deformation or lack preevent data. Consequently, the characteristics of off-fault deformation and the parameters that control it rema...

Strong strain and pore pressure changes are observed after three Mw 4.5+ local one 7.2 regional earthquake during 2010–2017 in borehole strainmeters near Anza, California. The change emerges immediately the earthquakes lasts 40–100 days with amplitudes up to 10−7, larger than coseismic offsets. exhibits at some boreholes a delay of 4–10 others. A joint analysis postseismic suggests that strains...

[1] The 1999 Chi-Chi earthquake, Mw = 7.6, broke a major thrust fault along the western foothills of the Central Range of Taiwan. We have measured the horizontal coseismic displacement field by correlating optical satellite images acquired before and after the earthquake. These data reveal the fault trace and a clockwise rotation of surface displacements toward the north with much larger displa...

The Mw 7.3 1995 Aqaba earthquake is the largest instrumental earthquake along the Dead Sea Fault. We complement previous seismological studies by analyzing co-seismic ground displacement from differential interferometry computed from ERS images spanning 3 different areas. They are compared with a synthetic model derived from seismological study. Only far-field deformation related to the main su...