Results 51 to 60 of about 21,163 (257)

Fluid‐induced slip on a rate‐and‐state fault during co‐ and post‐injection: The interplay of fluid pressure diffusion and poroelastic stress

Deep Underground Science and Engineering, EarlyView.
Fault slip can occur ahead of the injection pressure front due to poroelastic stress. Our model captures the interaction of pressure, stress, and friction, providing new insights into injection‐induced seismicity and post‐injection fault slip. Shut‐in operations can either mitigate or accelerate seismic events depending on fault conditions and ...
Qifeng Xie, Lei Wang, Qi Li
wiley   +1 more source

Analysis of Stress Variation Characteristics of Jiangling Depression, Hubei, China, Based on Jingzhou Well Water Level and GNSS Data

Geofluids
There have been many M≥3.0 earthquakes in and around the Jiangling Depression in history, and the stress variation can directly affect the preparation of surrounding earthquakes. This paper innovatively uses the variation characteristics of Jingzhou well
Cheng Weng, Jiansheng Yu, Jie Wang, Pinji Lv, Xiaoxiao Song, Xiaocheng Zhou   +5 more
doaj   +1 more source

Influence of crustal layering and thickness on co-seismic effects of Wenchuan earthquake

Geodesy and Geodynamics, 2011
Using the PSGRN/PSCMP software and the fault model offered by USGS and on the basis of finite rectangular dislocation theory and the local layered wave velocity structures of the crust-upper-mantle, the influences of crustal layering and thickness on co ...
Tan Hongbo, Shen Chongyang, Xuan Songbai, Yang Guangliang   +3 more
doaj   +1 more source

Appraisal of seismic noise scenario at national seismological network of India in COVID-19 lockdown situation

Geomatics, Natural Hazards & Risk, 2020
We evaluated seismic background noise at national network in India using PSD, Fourier spectra, Spectrogram, and HVSR approach, before and during the nationwide lockdown declared due to COVID-19 pandemic.
Ajeet P. Pandey, A. P. Singh, Brijesh K. Bansal, G. Suresh, Sanjay K. Prajapati   +4 more
doaj   +1 more source

Models of the macroseismic field earthquakes and their influence on seismic hazard assessment values for Central Asia

Геодинамика и тектонофизика, 2020
Seismic intensity assessment in points of a macroseismic scale plays an important role for researching the seismic history of areas characterized by active seismicity, as well as for construction (and updating) of seismic zoning maps in various scales ...
T. U. Artikov, R. S. Ibragimov, T. L. Ibragimova, M. A. Mirzaev   +3 more
doaj   +1 more source

Surface Consistent Seismic Hazard Assessment in the Shillong Plateau, Northeast India: A Probabilistic Approach Using Multiple Source Models and a Logic Tree Framework

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT We perform probabilistic seismic hazard analysis (PSHA) in the Shillong Plateau by clubbing the up‐to‐date earthquake data and seismotectonic properties of the study area. Twenty‐one areal seismic sources are delineated based on the updated earthquake catalog, tectonic, and fault plane solutions.
Mohd Shahabuddin, William Kumar Mohanty, Eleftheria Papadimitriou   +2 more
wiley   +1 more source

Seismological aspects of intermediate and small-scale upper mantle structure : considerations on a global and regional scale [PDF]

, 1996
Seismology can be defined as the mathematical and physical study of earthquakes. It is also the study of how the earth's vibrations, generated by earthquakes, can be used to make statements about the internal structure of the earth.
Seismology, IVAU: Instituut voor Aardwetenschappen Utrecht, Passier, M.L.   +2 more
core  

AdriaArray – a Passive Seismic Experiment to Study Structure, Geodynamics and Geohazards of the Adriatic Plate [PDF]

AdriaArray is a multinational initiative to cover the Adriatic Plate and its tectonically active surroundings – including units of Adriatic origin – with a dense regional array of seismic stations.
Kolínský, Petr, the AdriaArray Seismology Group, Tiira, Timo Ensio   +2 more
core   +1 more source

Observations of exotic inner core waves [PDF]

, 2015
The seismic structure of Earth’s inner core is highly complex, displaying strong anisotropy and further regional variations. However, few seismic waves are sensitive to the inner core and fundamental questions regarding the origin of the observed seismic
Deuss, Arwen, Seismology, Deuss, A.F., Waszek, Lauren   +3 more
core   +1 more source

Research on the Critical Mechanical Criterion for Stick‐Slip Instability of Mining‐Affected Normal Faults Based on the Rate‐and‐State Friction Law

Energy Science &Engineering, EarlyView.
Mining disturbance tends to trigger fault stick‐slip instability and induce disasters. This paper establishes a mechanical model to propose a critical criterion, which is verified to be reliable via FLAC3D, providing a theoretical basis for early warning of fault slip disasters.
Bowen Wu, Yanhui Li
wiley   +1 more source