[1] We estimate the current slip rates on active conjugate strike-slip faults in central Tibet using repeat-pass synthetic aperture radar interferometry (InSAR). The conjugate fault systems are centered along the east trending Late Jurassic–Early Cretaceous Bangong-Nujiang suture zone and are composed of NE striking left-slip faults to the north and NW striking right-slip faults to the south. T...

There is strong evidence that the 11 March 2011 Tohoku earthquake rupture reached the seafloor. This is surprising because the shallow portion of the plate interface in subduction zones is thought to be frictionally stable, leading to the widely held view that coseismic rupture would stop several tens of kilometers downdip of the seafloor. Various explanations have been proposed to reconcile th...

We present a catalog of accurate epicenter coordinates of earthquakes located in the Gulf of California (GoC) in the period 2002-2014 that permits us to analyze the seismotectonics and to estimate the depth of the seismogenic zone of this region. For the period April 2002 to December 2014 we use body-wave arrival times from regional stations of the Broadband Seismological Network of the GoC (RE...

Catastrophic megaearthquakes (M > 8) occurring in the subduction zones are among most devastating hazards on planet. In this paper we discuss seismic cycles of megathrust earthquakes and propose a blockwise geomechanical model explaining certain features stress-deformation cycle revealed recent decades from seismological satellite geodesy (GNSS) observations. Starting with an overview so-cal...

In several examples of subduction zones, we compared pairs quartz veins formed either at the lower temperatures seismogenic zone (260°C or below), higher its downdip limit (∼330°C). All analyzed here are mode I cracks that contemporaneously with host-rock main stage deformation peak burial conditions. Lower-temperature show crystals euhedral shapes and growth rims, while higher-temperature cont...

Quiescent faults may be capable of creating catastrophic earthquakes in locations with moderate and/or low seismic activity, such as Egypt. This study combines structural, remote sensing (RS), geophysical, and activity data to examine analyze the relationship between tectonic structures seismotectonic In a new seismo-lineaments map Egypt, lineaments Egyptian mainland were delineated classified....

Fluid intrusions into seismic zones play a fundamental role in the initiation of earthquakes and rupture processes, yet mechanisms that control these interactions are enigmatic widely debated. Here, we present series signatures for new velocities (Vp, Vs) Vp/Vs ratio imaging stress simulations reveal impact fluids, including partial melting, on seismogenesis 2008 Wenchuan earthquake occurred ea...

Abstract Monitoring the hydraulic properties within subsurface fractures is vitally important in contexts of geoengineering developments and seismicity. Geophysical observations are promising tools for remote determination properties; however, quantitative interpretations hampered by paucity relevant geophysical data fractured rock masses. This study explores simultaneous changes natural with i...

Whether tectonic convergence at subduction zones is accommodated predominantly through seismic or aseismic deformation, the former potentially generating large earthquakes, varies considerably between margins. This margin-scale variability has previously been linked to overriding plate trench migration, and their influence on interface stress state. While these processes are mantle-scale dynami...