Results 61 to 70 of about 13,531 (202)

Multi-parameter monitoring of a solution mining cavity collapse : first insight of precursors [PDF]

, 2011
International audienceIn order to improve our understanding of the large-scale ground failure phenomena caused by old underground mining works, a solution mine was instrumented in 2004 prior to its collapse as part of the mining scheme.
Al Heib, Allen, Amitrano, Bérest, Contrucci, Driad-Lebeau, Dris, Emmanuelle Klein, Gutenberg, Isabelle Contrucci, Klein, Klein, Lomax, Mercerat, Mercerat, Ngoc-Tuyen Cao, Nothnagel, Pascal Bigarré, Piwakowski, Scholz, Spillmann, Tastet, Urbancic, Weiss, Xavier Daupley   +24 more
core   +4 more sources

Tide‐Modulated Ocean‐to‐Earth Energy Conversion Quantified With Coastal Fiber Sensing

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Quantifying how incident ocean waves transfer energy into seismic surface waves along the nearshore is essential for understanding coastal hazards and Earth–ocean coupling, yet time‐resolved in situ estimates have been scarce. Here we use a beach‐deployed distributed acoustic sensing array co‐located with an ocean‐bottom node to directly ...
Justin Yen‐Ting Ko, Kun‐Chi Ho, Chun‐Hung Lin, Hsin‐Hua Huang, Ho‐Han Hsu, Chen‐Fen Huang, Hao Kuo‐Chen, Hou‐Sheng Cheng, Yao Hsu, En‐Shi Wu, Hsi‐An Chen, Yu‐Fang Ma, Hung‐Yi Wu, Po‐Yin Lin, Yu‐Hsian Chen, Wei‐Jong Tien, Bo‐Yu Siao, Hui‐Yu Wu   +17 more
wiley   +1 more source

Machine Learning Based Identification of Microseismic Signals Using Characteristic Parameters

Sensors, 2021
Microseismic monitoring system is one of the effective means to monitor ground stress in deep mines. The accuracy and speed of microseismic signal identification directly affect the stability analysis in rock engineering.
Kang Peng, Zheng Tang, Longjun Dong, Daoyuan Sun   +3 more
doaj   +1 more source

Microseismic joint location and anisotropic velocity inversion for hydraulic fracturing in a tight Bakken reservoir [PDF]

, 2014
To improve the accuracy of microseismic event locations, we developed a new inversion method with double-difference constraints for determining the hypocenters and the anisotropic velocity model for unconventional reservoirs.
Castellanos F., Chang Li, Dreger D., Junlun Li, Keith Katahara, Levenberg K., M. Nafi Toksöz, Scott A. Morton, Ted Dohmen   +8 more
core   +1 more source

On the Construction of Moho Reflected Shear Wave Phases From Ambient Noise

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Shear waves reflected from the Moho (SmS) are frequently identified in ambient noise cross‐correlation functions. Despite their consistent appearance across various arrays and studies, the physical origin and generation mechanisms of these SmS phases remain poorly understood.
Jinyun Xie, Yinhe Luo, Yingjie Yang, Ping Tong, Yanan Xie   +4 more
wiley   +1 more source

Time difference of arrival estimation of microseismic signals based on alpha-stable distribution [PDF]

Nonlinear Processes in Geophysics, 2018
Microseismic signals are generally considered to follow the Gauss distribution. A comparison of the dynamic characteristics of sample variance and the symmetry of microseismic signals with the signals which follow α-stable distribution reveals that ...
R.-S. Jia, R.-S. Jia, Y. Gong, Y. Gong, Y.-J. Peng, Y.-J. Peng, H.-M. Sun, H.-M. Sun, X.-L. Zhang, X.-L. Zhang, X.-M. Lu, X.-M. Lu   +11 more
doaj   +1 more source

A deterministic algorithm for experimental design applied to tomographic and microseismic monitoring surveys [PDF]

, 2004
SUMMARY Most general experimental design algorithms are either: (i) stochastic and hence give different designs each time they are run with finite computing power, or (ii) deterministic but converge to results that depend on an initial or reference ...
Alberto Michelini, Andrew Curtis, Anthony Lomax, Atkinson, Curtis, Curtis, Curtis, Curtis, Curtis, Curtis, David Leslie, Kijko, Maurer, Maurer, Menke, Mitchell, Rabinowitz, Sabatier, Silvey, Smith, Steinberg, Tarantola, Tarantola, van den Berg   +23 more
core   +1 more source

The Role of Normal Stress and Shear Stress Heterogeneity in the Inferred Depth‐Independence of Stress Drop

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Earthquake stress drops are inferred to be independent of source depth, contradicting linear scaling predictions for earthquakes as frictional stick‐slip instabilities that assume increasing fault normal stress due to overburden. Here, we examine the scaling between averaged stress drops and increasing normal stress for simulated earthquake ...
Minghan Yang, Valère Lambert, Emily E. Brodsky   +2 more
wiley   +1 more source

Comparison of geomechanical deformation induced by megatonne-scale CO2 storage at Sleipner, Weyburn, and In Salah [PDF]

, 2013
Geological storage of CO2 that has been captured at large, point source emitters represents a key potential method for reduction of anthropogenic greenhouse gas emissions. However, this technology will only be viable if it can be guaranteed that injected
Bissell, Rob C., Chadwick, R. Andrew, Kendall, J.-Michael, Stork, Anna L., Verdon, James P., White, Don J.   +5 more
core   +1 more source

Cycled Fluid Injection Limits Maximum Earthquake Size by Controlling the Cadence of Seismic Moment Release

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Controlling fluid injection is widely considered a key to limiting the size of injection‐induced seismicity, yet whether and how it limits earthquake size remains debated. We perform injection‐reactivation experiments on critically stressed faults to test how different injection strategies shape slip and seismic moment release.
Zhi Geng, Lei Wang, Quansheng Liu, Junpeng Wang, Pengliang Yu, Yuan Zhou, Youqi Huang, Yongshui Kang, Bin Liu, Derek Elsworth   +9 more
wiley   +1 more source