Results 11 to 20 of about 7,106,654 (320)
Applied Sciences (Switzerland), 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 ...
Zhuowei Xiao, Yijian Zhou, Lihua Fang
exaly +4 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
semanticscholar +7 more sources
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
doaj +2 more sources
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 +3 more sources
Frontiers in Earth Science, 2021 The 3 February 2020 MS 5.1 Qingbaijiang earthquake, southwestern China, is the closest recorded MS ≥ 5.0 event to downtown Chengdu City to date, with an epicentral distance of only 38 km. Here we analyze seismic data from the Sichuan and Chengdu regional
Guixi Yi
exaly +3 more sources
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,
Kai Tan
exaly +2 more sources
Normative expression and accurate understanding of focal mechanism parameters
Geosystems and Geoenvironment, 2023 This paper aims at the understanding of the relationship between the upper and lower hemisphere projection maps of the focal sphere, the correct reading of the focal mechanism parameters on the projection diagram, and to investigate if there is ...
Zhumei Liu, Shengle Li
exaly +3 more sources
Frontiers in Earth Science, 2022 The June 17, 2019, MS 6.0 Changning earthquake is the largest recorded event in the Sichuan basin, spatiotemporal variations of stress field may shed light on the seismogenic mechanism of the earthquake. We determined the focal mechanism solutions (FMSs)
Chuntao Liang
exaly +3 more sources
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), and moment tensor inversion, the reliability and stability of focal mechanism solutions of small ...
Penghu GUAN +4 more
openaire +3 more sources
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.
Vahidoddin Fattahpour
exaly +2 more sources