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Journal of Rock Mechanics and Geotechnical Engineering, 2022 The radiated seismic energy is an important index for the intensity assessment of microseismic (MS) events and the early warning of dynamic disasters.
Quansheng Liu, Jia-Qi Huang
exaly +3 more sources
Geomatics, Natural Hazards and Risk, 2022 Seismic energy analysis is the basis of coal burst risk assessment. The prerequisite for utilizing seismic energy to quantify coal burst hazards is the accurate understanding of seismic energy attenuation.
Anye Cao, Wenhao Guo, Yaoqi Liu
exaly +3 more sources
Seismic Attenuation Extraction From Traffic Signals Recorded by a Single Seismic Station
Geophysical Research Letters, 2023 Seismic ambient noise contains rich information about the physical properties of the critical zone. From the motor vehicle noise, we extract the daily seismic attenuation by quantifying the linear relationship between the frequency and amplitude ratio of
Bei Li +2 more
exaly +2 more sources
Numerical study on the impact of coal fractures on seismic wave dispersion and attenuation: anisotropic WIFF effects [PDF]
Scientific ReportsCoalbed methane, a key resource in natural gas exploration, is closely linked to the fracture networks within coal beds. Unlike shale or tight sandstone reservoirs, coalbed methane reservoirs feature a dual-porosity/fracture system consisting of matrix ...
Bin Li +4 more
doaj +2 more sources
Evidence for faulting and fluid-driven earthquake processes from seismic attenuation variations beneath metropolitan Los Angeles [PDF]
Scientific ReportsSeismicity in the Los Angeles metropolitan area has been primarily attributed to the regional stress loading. Below the urban areas, earthquake sequences have occurred over time showing migration off the faults and providing evidence that secondary ...
Chiara Nardoni, Patricia Persaud
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Mechanisms of geometrical seismic attenuation
Annals of Geophysics, 2011 In several recent reports, we have explained the frequency dependence of the apparent seismic quality-factor (Q) observed in many studies according to the effects of geometrical attenuation, which was defined as the zero-frequency limit of the temporal ...
Igor B. Morozov
doaj +4 more sources
Melt, fluids, and fractures beneath Ebeko Volcano (Kuril Islands) revealed by ambient noise attenuation tomography [PDF]
Scientific ReportsThe northern part of Paramushir Island (Kuril Arc) is dominated by the NNE-SSW oriented Vernadsky Ridge that hosts the presently active Ebeko Volcano, where phreatomagmatic eruptions coexist with complex hydrothermal activity.
Iván Cabrera-Pérez +4 more
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Buildings, 2022 In order to study the seismic wave attenuation characteristics of complex plate tectonics in and around the Kanto Basin, based on the focal mechanism and Slab1.0 model, the research area is divided into four regions.
Ying Zhou +5 more
doaj +1 more source
Crustal permeability changes inferred from seismic attenuation: Impacts on multi-mainshock sequences
Frontiers in Earth Science, 2022 We use amplitude ratios from narrowband-filtered earthquake seismograms to measure variations of seismic attenuation over time, providing unique insights into the dynamic state of stress in the Earth’s crust at depth.
Luca Malagnini +5 more
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Seismic attenuation in Faroe Islands basalts [PDF]
Geophysical Prospecting, 2005 ABSTRACTWe analysed vertical seismic profiling (VSP) data from two boreholes at Glyvursnes and Vestmanna on the island of Streymoy, Faroe Islands, to determine the magnitude and causes of seismic attenuation in sequences of basalt flows. The work is part of SeiFaBa, a major project integrating data from vertical and offset VSP, surface seismic surveys,
Shaw, F. +5 more
openaire +2 more sources