Abstract An earthquake sequence in the Storfjorden offshore area southwest of Spitsbergen Svalbard archipelago initiated with a 21 February 2008 magnitude Mw 6.1 event. This had previously not produced any significant earthquakes, but between and 2020, total ?2800 earthquakes were detected, ?16 them being moderate size (ML?4.0). Applying double-difference relocation to improve relative location...

A non-contact, wideband method of sensing dynamic fault slip in laboratory geophysical experiments employs an inexpensive magnetoresistive sensor, a small neodymium rare earth magnet, and user built application-specific wideband signal conditioning. The magnetoresistive sensor generates a voltage proportional to the changing angles of magnetic flux lines, generated by differential motion or rot...

Abstract The deformation pattern and slip partitioning related to oblique underthrusting of the Tarim Basin in eastern Tian Shan orogenic belt are not well understood because interior images lacking. Baoertu fault is an E-W–striking, ~350-km-long reactivated basement structure within Shan. In this study, we quantify its late Quaternary activity based on interpretations detailed high-resolution ...

A dataset comprised of 3946 well-located and wellconstrained earthquake focal plane mechanisms recorded in the Northwest Geysers geothermal field during the period of Jan 2005 – May 2012 was used to determine stress orientations and relative magnitudes at fine scale. The stress inversions were organized into gridblocks of varying size using a three-dimensional oct-tree gridding algorithm in whi...

S U M M A R Y We invert for the state of stress in the southern California crust using a catalogue of high quality earthquake focal mechanisms (1981–2010). The stress field is best resolved where seismicity rates are high and sufficient data are available to constrain the stress field across most of the region. From the stress field, we determine the maximum horizontal compressive stress (SHmax...

Evidence of long-term, late Cenozoic uplift, as well as strike-slip faulting, is revealed by topographic and geological features along the northern 500 km of the Dead Sea fault system (DSFS) – the transform boundary between the Arabian and African plates in the eastern Mediterranean region. Macro-geomorphic features are studied using a new, high-resolution (20 meter pixel) digital elevation mod...