Results 131 to 140 of about 756,295 (186)

Focal mechanism solutions and nature of plate movements in Pakistan

Journal of Geodynamics, 1986
Abstract 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, 1978
Fault 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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Mechanism Solution of Nepal-Bihar Eartbquake of August 20, 1988

Journal of the Geological Society of India, 1991
This paper presents the focal mechanism solution of the Nepal Bihar earthquake of August 20, 1988. Use was made of the first motions of P waves and polarization (or first motions) of S waves.
A. Banghar
semanticscholar   +1 more source

Focal mechanism solutions for roof collapse in deep mine

International Journal of Mining and Mineral Engineering, 2015
Microseismic 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, Hui Fu, Fu li Wang, Wei qiang Li, Ming Luo, Lu Liu, Zhi jiang Lu, Ai xiang Wu, Xiao hui Liu   +8 more
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Focal-mechanism solutions of earthquakes and tectonics of the hindukush region

Tectonophysics, 1984
Abstract 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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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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On the focal mechanism of the Peru-Bolivia border earthquake of August 15, 1963

Bulletin of The Seismological Society of America (BSSA), 1970
The seismograms of the deep focus Peru-Bolivia border earthquake of August 15, 1963 reveal the presence of a number of conspicuous phases occurring within 15 seconds of the first P onset. These phases cannot be explained on the basis of known travel-time
U. Chandra
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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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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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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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