Results 11 to 20 of about 7,593,860 (323)
Applied Sciences, 2023 P-wave first-motion polarity is important for the inversion of earthquake focal mechanism solutions. The focal mechanism solution can further contribute to our understanding of the source rupture process, the fault structure, and the regional stress ...
Shuai Li +5 more
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Seismicity distribution and focal mechanism solution of major earthquakes of northern Pakistan [PDF]
Acta Geodaetica et Geophysica, 2016 Pakistan is situated very close to the subduction zone of Indian-Arabian plates and Indian-Eurasian plates. Thus, it is a country with moderate to high seismicity with a large number of major earthquakes. Therefore, the severity of seismic hazards of major earthquakes is not ignorable. The seismicity of northern areas of Pakistan (33–37°N and 70–76°E),
P. Khalid +3 more
semanticscholar +5 more sources
A functional tool to explore the reliability of micro-earthquake focal mechanism solution for seismotectonic purposes [PDF]
Solid Earth, 2021 . Improving the knowledge of seismogenic faults requires the integration of geological, seismological, and geophysical information. Among several analyses, the definition of earthquake focal mechanisms plays an essential role in providing information ...
G. M. Adinolfi +3 more
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Research of Focal Mechanism and Focal Depth of Qilian, Qinghai Ms5.2 Earthquake [PDF]
E3S Web of Conferences, 2019 This paper selects the waveform records of 16 broadband digital seismic stations in the regional seismic network of Gansu province, Qinghai province, and Sichuan province involved inversion, use CAP focal mechanism solution method to calculate the Ms 5.2
Gao Yongguo, Yin Xinxin
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Geophysical Journal InternationalThe stress regime patterns of high seismically active regions within the western part of the India-Eurasia collision, spanning from 67° E to 83° E and 27° N to 39° N, are elucidated through analysis of 684 Focal Mechanism Solutions from 1962 to 2021 ...
Vivek G. Babu, Naresh Kumar, S. K. Pal
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Study on three independent parameters of focal mechanism solution [PDF]
Earthquake Science, 2017 In this paper, the relationships of the plunges and azimuths of T and P axes versus the strikes, dips, and rakes of two seismic nodal planes were derived to provide reference for earthquake researchers. The independence of the plunges and azimuths of T, B, and P axes in focal mechanism solution was discussed, and it was concluded that three parameters,
Li, Qi, Tan, Kai
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First-Motion Focal Mechanism Solutions for 2015–2019 M ≥ 4.0 Italian Earthquakes [PDF]
Frontiers in Earth Science, 2021 A list of 100 focal mechanism solutions that occurred in Italy between 2015 and 2019 has been compiled for earthquakes with magnitude M ≥ 4.0. We define earthquake parameters for additional 22 seismic events with 3.0 ≤ M < 4.0 for two specific key zones: Muccia, at the northern termination of the Amatrice–Visso–Norcia 2016–2018 central Italy ...
Maria G. Ciaccio +43 more
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Reliability of Focal Mechanism Solutions for Small and Medium Earthquakes Based on Different Methods
Taiyuan Ligong Daxue xuebao, 2022 Three representative small and medium earthquakes in Shanxi seismic belt in recent years were taken as examples. By using different methods, such as the first motion of P-wave, first motion of P-wave combining P/SV/SH amplitude ratio, CAP (Cut and Past),
Penghu GUAN +4 more
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Stress inversion from the focal mechanism solution of Bam earthquake aftershocks (Iran, 2003)
Journal of Geophysics and Engineering, 2010 Stress determination can be performed by different inversion techniques using fault-slip data resulted from focal mechanism solutions obtained from earthquake shock records. Inversion methods, explicitly or implicitly, use the object function that evaluates the fitness of some assumed stress state to the fault-slip data.
V Fattahpour, M Moosavi
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地震科学进展, 2021 On June 9，2020，an earthquake measuring ML3.4 occurred in Shapotou District，Zhongwei City，Ningxia. The earthquake occurred in the meizoseismal area of the 1709 M7½ earthquake of South Zhongwei，and its epicenter is located in an area where there were ...
Yingcai Xu +3 more
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