[1] Paleoseismic exposures excavated across relatively straight sections of major faults in southern California display a high degree of localization at depths of only a few meters below the surface. In some cases, the width of the slip zone in events with multimeter displacement is on the order of 1–2 mm to a cm, which is the resolution of the observations. Repetitive slip events in the same z...

[1] Previous Caribbean GPS studies have shown that the rigid interior of the Caribbean plate is moving eastnortheastward (070 ) at a rate of 18–20 ± 3 mm/yr relative to North America. This direction implies maximum oblique convergence between the island of Hispaniola on the Caribbean plate and the 22–27-kmthick crust of the Bahama carbonate platform on the adjacent North America plate. We prese...

Determining the relationship between crustal movement and faulting in thrust belts is essential for understanding the growth of geological structures and addressing the proposed models of a potential earthquake hazard. A Mw 5.9 earthquake occurred on 21 January 2016 in Menyuan, NE Qinghai Tibetan plateau. We combined satellite interferometry from Sentinel-1A Terrain Observation with Progressive...

The evolution of rift basins is often influenced by the reactivation pre-existing structures, a response that partly controlled angular relationship between fault strike and subsequent extension/compression axes. In Celtic Sea basins, offshore Ireland, Caledonian Variscan structures form heterogeneous basement for rifting in Triassic–Jurassic Cretaceous later Pyrenean inversion Paleogene. Using...

Fault slip distributions provide important insight into the earthquake process. We analyze high-resolution along-strike co-seismic slip profiles of the 1992 Mw = 7.3 Landers and 1999 Mw = 7.1 Hector Mine earthquakes, finding a spatial correlation between fluctuations of the slip distribution and geometrical fault structure. Using a spectral analysis, we demonstrate that the observed variation o...

[1] We measure an average slip rate of 4 ± 1 mm yr 1 along the Karakorum fault, heretofore considered one of Earth’s greatest strike-slip faults and thought by many to play a key role in Asian deformation kinematics. Levees of a debris flow, and contours of the fan on which it was deposited, have been displaced 40 ± 5 m. Concentrations of Be in boulders from the debris flow yield ages of 11–14 ...

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...