Results 161 to 170 of about 421,583 (208)

A comparison of multiple solutions of focal mechanisms

Bulletin of the Seismological Society of America, 1964
Abstract The occurrence of focal mechanism solutions of the same earthquake by different authors is examined. Of 42 instances of such multiple solutions for earthquakes which occurred around the borders of the Pacific Ocean, it is found that of 84 possible pairs of multiple solutions agreement is excellent in 8 cases, good in 13, fair in
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Two focal-mechanism solutions for earthquakes from Iceland and Svalbard

Tectonophysics, 1977
Abstract Strike-slip solutions have been obtained and are presented here for the focal mechanisms of one earthquake from Iceland and one from Svalbard, on 13 and 18 January 1976, respectively. A fault plane is suggested for the Iceland earthquake.
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Modern tectonic stress field in the Chinese mainland inverted from focal mechanism solutions

Acta Seismologica Sinica, 1999
The inversion of modern tectonic stress field in China is made by regions on the basis of focal mechanism data in the period of 1920–1996. Results of the inversion show that the maximum principal compressive stress σ1 axis strikes nearly north-south direction in the Tibet Plateau and western China, east-west direction in North China.
Xing-Xin Du, Hui-Cheng Shao
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Focal mechanism solution of the Himalayan earthquake of February 14, 1977

Tectonophysics, 1982
Abstract Through a closely spaced local network of seismic stations in Himachal Pradesh, India, supplemented by worldwide P-wave first-motion data, the source mechanism of the February 14, 1977 earthquake which occurred very close to the Rawalpindi area in Pakistan has been determined.
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Focal mechanism solutions for Albanian earthquakes for the years 1964–1988

Tectonophysics, 1994
Abstract Focal mechanism solutions for 175 Albanian earthquakes of Albania for the years 1964–1988 were obtained by using an interactive computer technique. The results obtained are elaborated upon by applying Fisherian statistical analysis to obtain parameters for the mean stress direction in five zones.
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Focal Mechanism Solutions of Intraplate Earthquakes and Stresses in the Lithosphere

1974
Focal mechanism solutions of 33 intraplate earthquakes are presented. These solutions, 47 additional mechanism solutions from the literature, and measurements of stress in situ indicate that the interiors of many lithospheric plates are characterized by large horizontal compressive stress. The predominance of com-pressive stress is particularly notable
Lynn R. Sykes, Marc L. Sbar
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August 08, 2010, Sheikhupura, Pakistan earthquake: seismotectonic investigation using focal mechanism solution and gravity data

Natural Hazards, 2012
A shallow-focus (3.8 km deep) and low-magnitude (M L 3.8) earthquake occurred near Sheikhupura on August 08, 2010. Shaking was felt in parts of Potwar and northern Punjab but no associated damage has been reported. Tectonically, this earthquake occurred to the south of the Salt Range in the Punjab Seismic Zone (PSZ), a shallow-focus ...
null MonaLisa, M. Qasim Jan
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Contemporary Crustal Deformation Within the Pamir Plateau Constrained by Geodetic Observations and Focal Mechanism Solutions

Pure and Applied Geophysics, 2018
We used an updated data set of 192 GPS-derived surface velocities and 393 earthquake focal mechanisms (Mw > 3.0, hypocenter depths 
Zhengyang Pan, Jiankun He, Jun Li
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Focal mechanism solutions and dynamic parameters of earthquakes in the eastern Himalayas and northern Burma

Tectonophysics, 1983
Abstract Focal-mechanism solutions of four earthquakes in the eastern Himalayas and northern Burma are determined using the first motion of compressional waves. Two possible solutions thus obtained for each event reveal steeply dipping fault with predominantly strike-slip motion.
S.K. Upadhyay, V.K. Ahuja, V.Sri Ram
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Determination of focal mechanism solution using initial motion polarity of P and S waves

Physics of the Earth and Planetary Interiors, 2002
Abstract It is important to determine accurate focal mechanism solutions for earthquakes with small magnitudes or those recorded by a small number of seismometers, perhaps with an unfavorable geographic distribution. A method using initial motion polarity of S waves, in addition to P waves, is described.
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