Results 41 to 50 of about 5,445,515 (146)

Stress state along the western Nankai Trough subduction zone inferred from b-values, long-term slow-slip events, and low-frequency earthquakes

Earth, Planets and Space, 2020
The b-value of the Gutenberg–Richter law represents the ratio of earthquake magnitude to frequency of occurrence and is inversely proportional to differential stress.
Keita Chiba
doaj   +1 more source

IDENTIFICATION OF TSUNAMIGENIC EARTHQUAKE ZONES IN OCEANIC RIDGES AND TRENCHES [PDF]

Science of Tsunami Hazards, 2019
Tsunamigenic earthquakes have been known for their near and far field catastrophic impacts on coastal areas near oceanic ridges and trenches, as well as near tectonic faults in closed and semi- enclosed seas.
O.S. Hammed, T.A. Adagunodo, M.O. Awoyemi, A.B. Arogundade, O.D. Ajama, F.O. Sapele, M.R. Usikalu, A.M. Olanrewaju, S.A. Akinwumi, E.I. Ogunwale   +9 more
doaj  

Source analysis of acoustic emissions during granite strain burst

Geomatics, Natural Hazards & Risk, 2019
The acoustic emission (AE) location technique and fault-plane solution method were used to evaluate the temporal-spatial evolution, released energy variation of micro-cracks, and the difference in b-values for different types of micro-cracks during ...
Yang Wang, Manchao He, Fuqiang Ren, Chun Zhu, Lohrasb Faramarzi   +4 more
doaj   +1 more source

Fracture behavior of sandstone with partial filling flaw under mixed-mode loading: Three-point bending tests and discrete element method

Journal of Rock Mechanics and Geotechnical Engineering
The fracture behavior of natural fracture in the geological reservoir subjected to filling property, affects the crack initiation and propagation under stress perturbation.
Dongdong Ma, Yu Wu, Xiao Ma, Xunjian Hu, Wenbao Dong, Decheng Li, Lingyu Li   +6 more
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Spatiotemporal Distribution of the Magnitude of Completeness and b-Values in Mainland China Based on a Fused Multi-Source Earthquake Catalog

Entropy
The b-value is a critical parameter for gauging seismic activity and is essential for seismic hazard assessment, monitoring stress evolution in focal zones, and forecasting major earthquakes. The minimum magnitude of completeness (Mc), a key indicator of
Chen Li, Ziyi Li, Mengqiao Duan, Lianqing Zhou   +3 more
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Positively closed Sh(B)-valued models

Annals of Pure and Applied Logic
We study positively closed and strongly positively closed topos-valued models of coherent theories. Positively closed is a global notion (it is defined in terms of all possible outgoing homomorphisms), while strongly positively closed is a local notion (it only concerns the definable sets inside the model).
openaire   +2 more sources

Variation of b Value for Axial DWI Prostate MR Imaging in Cancer: Which b Value is Optimal?

Proceedings Series on Health & Medical Sciences
Background: Diffusion Weighted Imaging (DWI) is a technique that visualizes the movement of water molecules from areas of higher to lower concentration. In DWI sequences, the b-value parameter affects the signal intensity in the images. The objective of this study is to describe the differences in anatomical image information between b-value variations
Nurul Agustina, Fani Susanto, Hernastiti Sedya Utami, Lujeng Agus Setiarso, Muhammad Salman Faisal   +4 more
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A comparative study of shear crack growth mechanisms in concrete through acoustic emission analysis

Scientific Reports
The shear failure of concrete is a sudden brittle failure, which is difficult to be forewarned. To investigate the shear crack mechanisms in concrete, this study first systematic compared acoustic emission (AE) behavior during direct shear tests ...
Lian Huang, Junjie Deng, Duo Hu, Xiaolong Li, Yun Liu, Weihua Zhu   +5 more
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A review and new insights on the estimation of the b-valueand its uncertainty

Annals of Geophysics, 2003
The estimation of the b-value of the Gutenberg-Richter Law and its uncertainty is crucial in seismic hazard studies, as well as in verifying theoretical assertions, such as, for example, the universality of the Gutenberg-Richter Law.
L. Sandri, W. Marzocchi
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Seismic hazard assessment of the central North Anatolian Fault (Turkey) from GPS-derived strain rates and b-values

Geomatics, Natural Hazards & Risk, 2018
The North Anatolian Fault (NAF) represents one of the most seismically active transform zones on Earth. It is characterized by high rates of crustal deformation that generate destructive earthquakes.
Asli Dogru, Ethem Gorgun, Bahadir Aktug, Haluk Ozener   +3 more
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