Results 41 to 50 of about 22,222 (295)

Fault Interactions Enhance High‐Frequency Earthquake Radiation

Geophysical Research Letters, 2021
Fault complexity has been linked to high‐frequency earthquake radiation, although the underlying physical mechanisms are not well understood. Fault complexity is commonly modeled with rough single faults; however, real‐world faults are additionally ...
Shanna X. Chu, Victor C. Tsai, Daniel T. Trugman, Greg Hirth   +3 more
doaj   +1 more source

Earthquake recurrence as a record breaking process

, 2005
Extending the central concept of recurrence times for a point process to recurrent events in space-time allows us to characterize seismicity as a record breaking process using only spatiotemporal relations among events.
Jörn Davidsen, Maya Paczuski, Peter Grassberger, Shearer P., Wells D. L.   +4 more
core   +1 more source

A way to synchronize models with seismic faults for earthquake forecasting: Insights from a simple stochastic model

, 2006
Numerical models are starting to be used for determining the future behaviour of seismic faults and fault networks. Their final goal would be to forecast future large earthquakes.
Aki, Amalio F. Pacheco, Baba, Bak, Ben-Zion, Boness, Bowman, Castellaro, Dahmen, Das, Das, Dowrick, Drossel, Fitzenz, Goltz, González, González, Grant, Gutenberg, Gutenberg, Gómez, Hainzl, Hainzl, Hainzl, Harris, Hashimoto, Heimpel, Helmstetter, Henley, Hickman, Houghton, Ikeda, Ishimoto, Javier B. Gómez, Kanamori, Kanamori, Kato, Keilis-Borok, Kisslinger, Kossobokov, Kuroki, Lei, López-Ruiz, Main, Mason, Michael, Miguel Vázquez-Prada, Miller, Molchan, Moreno, Newman, Okada, Olami, Palmer, Pepke, Preston, Reasenberg, Robinson, Robinson, Rubin, Rundle, Rundle, Rundle, Rundle, Rundle, Scholz, Scholz, Schorlemmer, Schwartz, Seeber, Sieh, Soloviev, Steacy, Stirling, Stirling, Tanioka, Tiampo, Tsukahara, Turcotte, Vázquez-Prada, Vázquez-Prada, Ward, Wells, Wesnousky, Wesnousky, Wyss, Yabuki, Yagi, Yamamoto, Yeats, Youngs, Zoback, Zöller, Álvaro González   +93 more
core   +1 more source

Current challenges for preseismic electromagnetic emissions: shedding light from micro-scale plastic flow, granular packings, phase transitions and self-affinity notion of fracture process [PDF]

, 2013
Are there credible electromagnetic (EM) EQ precursors? This a question debated in the scientific community and there may be legitimate reasons for the critical views.
Eftaxias, K., Potirakis, S. M.
core   +2 more sources

Machine Learning Approach to Earthquake Rupture Dynamics

, 2019
Simulating dynamic rupture propagation is challenging due to the uncertainties involved in the underlying physics of fault slip, stress conditions, and frictional properties of the fault. A trial and error approach is often used to determine the unknown parameters describing rupture, but running many simulations usually requires human review to ...
Ahamed, Sabber, Daub, Eric G.
openaire   +2 more sources

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

Deep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley   +1 more source

Mechanism of 2003, 2007 and 2009 earthquakes (S. Vicente Cape) and implications for the 1755 Lisbon earthquake [PDF]

, 2012
The San Vicente Cape region (SW Iberia) is of great seismological interest due to its tectonic complexity and for the occurrence of the 1755 Lisbon mega-earthquake.
Bezzeghoud, M., Buforn, E., Pro, C., Udias, A.   +3 more
core  

Networks of Recurrent Events, a Theory of Records, and an Application to Finding Causal Signatures in Seismicity [PDF]

, 2007
We propose a method to search for signs of causal structure in spatiotemporal data making minimal a priori assumptions about the underlying dynamics. To this end, we generalize the elementary concept of recurrence for a point process in time to recurrent
B. B. Mandelbrot, D. L. Turcotte, D. L. Wells, F. Omori, G. C. P. King, J. P. Crutchfield, Jörn Davidsen, M. Baiesi, Maya Paczuski, P. Bak, P. Shearer, Peter Grassberger, S. Stein, T. Mikumo, V. B. Nevzorov   +14 more
core   +2 more sources

Shear behavior of bolt–grout interfaces under constant normal stiffness: Influence of grout strength and thickness

Deep Underground Science and Engineering, EarlyView.
The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang, Dongqi Shang, Yujing Jiang, Jinge Zhang, Hongbin Chen, Tianqi Jiang   +5 more
wiley   +1 more source

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

Deep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, David Healy   +4 more
wiley   +1 more source