Results 211 to 220 of about 123,652 (261)
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 Grazia CIACCIO +2 more
exaly +4 more sources
Seismicity distribution and focal mechanism solution of major earthquakes of northern Pakistan [PDF]
Acta Geodaetica Et Geophysica, 2015 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),
Perveiz Khalid, Zia Ud Din
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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.
Vahidoddin Fattahpour
exaly +2 more sources
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A probability model for regional focal mechanism solutions
Bulletin of the Seismological Society of America, 1980abstractThe increase in the number of determinations of fault-plane solutions and their use for inferences on regional and local tectonics and stress fields makes it advisable to treat them in a standard way in groups on a regional basis. Probability models for joint group estimation of the shear dislocations, involving data from I earthquakes and J ...
D. R. Brillinger, A. Udias, B. A. Bolt
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Damage indicators and failure prediction in Focal Mechanism solutions
2020<p>Acoustic Emissions (AE), the laboratory analogue to seismic events, recorded during conventional triaxial deformation tests allow for an unprecedented amount of information on the evolution of fractured media within a controlled environment.
Sergio Vinciguerra +3 more
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Focal mechanism solutions and nature of plate movements in Pakistan
Journal of Geodynamics, 1986Abstract From the seismic point of view, the territory of Pakistan which lies between latitude 23°–37° N and longitude 61°–75° E is one of the most active zones in the world. The importance of this area lies in terms of movements of the Indian plate with respect to Eurasia on the west.
R.K. Verma, Ch. Chandra Sekhar
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Focal Mechanism Solutions and Tectonics of the Middle America ARC
The Journal of Geology, 1978Fault plane solutions of 67 earthquakes along the Middle America arc were determined. These focal mechanisms delineate tectonic activity characteristics of a subduction zone. Focal mechanisms of shallow events beneath the trench axis indicate normal faulting resulting from initial flexure of the downgoing plate.
Bradley W. Dean, Charles L. Drake
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Focal mechanism solutions for roof collapse in deep mine
International Journal of Mining and Mineral Engineering, 2015Microseismic monitoring is an effective means of forecasting instabilities in ruptured rock masses during deep mining. Based on the complex geological conditions of a mine in Southwest China, a digital 24–channel microseismic monitoring system was established to monitor microseismic events during deep mining.
Chun lai Wang +8 more
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Focal-mechanism solutions of earthquakes and tectonics of the hindukush region
Tectonophysics, 1984Abstract Seventeen focal-mechanism solutions have been obtained for earthquakes occurring in the Hindukush region using P-wave first motion directions observed from short as well as long period records. These solutions have indicated a thrust type of faulting. Some of the solutions show small components of strike slip motions.
Avadh Ram, Lalaji Yadav
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Focal mechanism solutions for earthquakes in Iran
Physics of the Earth and Planetary Interiors, 1984Abstract Focal mechanism solutions, derived by using P-wave first motion directions read from seismograms of Worldwide Standardized Stations Network (WWSSN), are presented for 36 earthquakes in Iran. In many cases the first motion data admit more than one solution.
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