Damage to fault-zone rocks during fault slip results in the formation of a channel of low seismic-wave velocities. Within such channels guided seismic waves, denoted by Fg, can propagate. Here we show with core samples, well logs and Fg-waves that such a channel is crossed by the SAFOD (San Andreas Fault Observatory at Depth) borehole at a depth of 2.7 km near Parkfield, California, USA. This l...

Physical limits on ground-motion parameters can be estimated from spontaneous-rupture earthquake models but are subject to uncertainties in model parameters. We investigate physical limits at Yucca Mountain, Nevada, and assess sensitivities due to uncertainties in fault geometry, off-fault rock strength, the seismogenic depth, fault zone structure, and undrained poroelastic response of the flui...

[1] We examine how frictional heating drives the evolution of temperature, strength, and fracture energy during earthquake slip. For small slip distances, heat and pore fluid are unable to escape the shearing fault core, and the behavior is well approximated by simple analytical models that neglect any transport. Following large slip distances, the finite width of the shear zone is small compar...

the presence of radon in drinking water causes health risks associated with exposure from both inhalation and ingestion. since the studies show that faults near the water resources have a critical effect on the concentration of radon, kouhbanan active fault zone, to find water resources  with high radon concentration was chosen for the following investigation. water samples were taken from all ...

Unique attributes in sequences of recurring, similar microearthquakes at Parkfield, California, provide a means for inferring slip rate at depth throughout the active fault surface from the time intervals between sequence events. Application of the method using an 11-year microseismicity record revealed systematic spatial and temporal changes in the slip rate that were synchronous with earthqua...

[1] The magnetotelluric dataset collected on the San Andreas Fault at Parkfield has been re-analyzed using superior inversion algorithms that have been developed in recent years. A combination of constrained inversion, forward modeling and synthetic inversion studies are used, and show that at the SAFOD site, the low resistivity fault zone extends to a depth of 2–3 km. An extended zone of low r...

[1] We studied the complex multiple-faulting pattern of the 40-km-long rupture zone of the 1999 M7.1 Hector Mine, California, earthquake with fault zone trapped waves generated by near-surface explosions and aftershocks, and recorded by linear seismic arrays deployed across the surface rupture. The explosion excited trapped waves, with relatively large amplitudes at 3–5 Hz and a long duration o...

Andrew Dick, Hedayat Rahemi, Elmars R. Krausz, Graeme R. Hanson, and Mark J. Riley School of Molecular and Microbial Sciences, University of Queensland, St. Lucia, Queensland 4072, Australia Chemistry Department, Urmia University, Urmia 57159-165, Iran Research School of Chemistry, Australian National University, Canberra 0200, Australia Centre for Magnetic Resonance, University of Queensland, ...

*Corresponding Author: Ahmadali Nikibakhsh MD, Associated professor of pediatric Nephrology Mailing Address: Nephrology and Transplantation Research Center, Motahari Hospital, Urmia University of Medical Sciences, Urmia, Iran Tel: +98 151 2233011-15 Fax: +98 151 2234506 Email: [email protected] The efficacy of rituximab in treatment of childhood steroid resistant and steroid dependent nephrot...

I. Mahdavi, Department of Industrial Engineering, Mazandaran University of Science and Technology, Babol, Iran M. M. Paydar, Department of Industrial Engineering, Iran University of Science and Technology, Tehran, Iran M. Solimanpur, Faculty of Engineering, Urmia University, Urmia, West Azerbaijan Province, Iran M. Saidi-Mehrabad, Department of Industrial Engineering, Iran University of Science...