Results 71 to 80 of about 9,177 (222)

Observations of the seasonality of the Antarctic microseismic signal, and its association to sea ice variability [PDF]

, 2011
International audienceSeismic noise spectra at all seismic stations display two peaks in the 1-20 s period band, called primary and secondary microseisms. They are caused by the coupling of ocean waves into Rayleigh waves. At most locations, microseismic
Grob, Mélanie, Maggi, Alessia, Stutzmann, Eléonore   +2 more
core   +4 more sources

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

A prototype-based rockburst types and risk prediction algorithm considering intra-class variance and inter-class distance of microseismic data

Frontiers in Earth Science
The prediction and classification of rockburst risk based on microseismic data is the premise of preventing rockbursts during deep mine excavation. By reviewing previous studies, this paper finds two problems that hinder the rockburst prediction: 1 ...
Xiufeng Zhang, Guoying Li, Yang Chen, Hao Wang, Haikuan Zhang, Haitao Li, Weisheng Du, Xiao Li, Xuewei Xu, Yuze He   +9 more
doaj   +1 more source

Salt Precipitation‐Driven Rock Failure Mode Transition During Geological CO2 Sequestration

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Salt precipitation has emerged as a critical factor affecting injectivity, reservoir stability, and the potential to trigger near‐wellbore microseismic activity during geological CO2 sequestration. While previous studies have primarily focused on the brine acidification induced by CO2 injection, triggering geochemical reactions in carbonate ...
Senyou An, Junjie Ju, Ji Kong, Ying Teng, Lifei Yan, Pengfei Wang, Jianbo Zhu, Heping Xie   +7 more
wiley   +1 more source

Fracture Quality From Integrating Time-Lapse VSP and Microseismic Data [PDF]

, 2007
Tight gas reservoirs are problematic to produce, often requiring multiple stages of hydraulic fracturing in order to create connected pathways through which hydrocarbons may flow. In this paper, we propose a new methodology to characterize the quality of
Burns, Daniel R., House, Nancy J., Lu, Rongrong, Toksoz, M. Nafi, Willis, Mark E.   +4 more
core   +1 more source

Ambient‐Noise Multicomponent Multimodal Dispersion Characteristics in Thick Sedimentary Basins

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Ambient noise cross‐correlations enable the extraction of multimodal surface waves, yet resolving their complex dispersion characteristics is essential for robust subsurface imaging. Using dense array data from the North China Plain, we resolve multicomponent multimodal Rayleigh and Love wave dispersion with unprecedented detail.
Gongheng Zhang, Chunquan Yu, Zhengbo Li, Xiaofei Chen, Caiwang Shi, Xuping Feng, Fanchang Meng, Bo Li   +7 more
wiley   +1 more source

Multi-channel waveform clustering: a first look at microseismic multiplets from coalbed methane stimulation

Geoscience Letters, 2019
Interpreting microseismic events triggered by reservoir stimulation (especially hydraulic fracturing) has become a common practice to understand fracture dimension and geometry.
Tepy Septyana, Andri Dian Nugraha, Sri Widiyantoro, Supriyono   +3 more
doaj   +1 more source

Near‐Field Acoustic Imaging Using Fiber‐Optic Distributed Acoustic Sensing and Beamforming Techniques

Advanced Science, Volume 13, Issue 6, 30 January 2026.
This work introduces a beamforming‐based method to generate acoustic images from fiber‐optic distributed acoustic sensing (DAS) data. By performing 2D scanning around the sensing fiber, the approach enables near‐field imaging and localization of acoustic sources, even in regions distant from the fiber. A data‐driven DAS channel selection improves image
Marcelo A. Soto, Diego Badillo‐San‐Juan   +1 more
wiley   +1 more source

Mine microseismic signal denoising method and application based on Adaboost_LSTM prediction

Meitan xuebao
Microseismic early warning is of great significance for ensuring mine safety, where a good denoising and accurate P-wave arrival picking of a microseismic signal is fundamental to the reliability of microseismic monitoring. By observing a large amount of
Xueyi SHANG, Yong CHEN, Jie CHEN, Linlin CHEN, Yuanyuan PU   +4 more
doaj   +1 more source

Automatic Classification of Microseismic Signals Based on MFCC and GMM-HMM in Underground Mines

Shock and Vibration, 2019
In order to mitigate economic and safety risks during mine life, a microseismic monitoring system is installed in a number of underground mines. The basic step for successfully analyzing those microseismic data is the correct detection of various event ...
Pingan Peng, Zhengxiang He, Liguan Wang
doaj   +1 more source