Extracting borehole strain precursors associated with the Lushan earthquake through principal component analysis
نویسندگان
چکیده
منابع مشابه
Principal component analysis of shear strain effects.
Shear stresses are always present during quasi-static strain imaging, since tissue slippage occurs along the lateral and elevational directions during an axial deformation. Shear stress components along the axial deformation axes add to the axial deformation while perpendicular components introduce both lateral and elevational rigid motion and deformation artifacts into the estimated axial and ...
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BACKGROUND A 7.0-magnitude earthquake hit Lushan County in China's Sichuan province on April 20, 2013, resulting in 196 deaths and 11,470 injured. This study was designed to analyze the characteristics of the injuries and the treatment of the seismic victims. METHODS After the earthquake, an epidemiological survey of injured patients was conducted by the Health Department of Sichuan Province....
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Following the devastating 2008 Wenchuan earthquake that ruptured the central–northern segments of the Longmenshan fault in Sichuan, China, many studies assessed its impact on other major faults in this region (e.g., Parsons et al., 2008; Toda et al., 2008). On 20 April 2013, theMw 6.6 Lushan earthquake ruptured the southern segment of the Longmenshan fault, allowing these assessments to be test...
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ژورنال
عنوان ژورنال: Annals of Geophysics
سال: 2018
ISSN: 2037-416X,1593-5213
DOI: 10.4401/ag-7633