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Yuri Fialko
University of California, San Diego
145Publications
37H-index
4,736Citations
Publications 145
Newest
#1Ekaterina Tymofyeyeva (UCSD: University of California, San Diego)H-Index: 3
#2Yuri Fialko (UCSD: University of California, San Diego)H-Index: 37
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#1Nicholas Lau (UCSD: University of California, San Diego)H-Index: 1
#2Ekaterina Tymofyeyeva (UCSD: University of California, San Diego)H-Index: 3
Last.Yuri Fialko (UCSD: University of California, San Diego)H-Index: 37
view all 3 authors...
Abstract We present new Interferometric Synthetic Aperture Radar (InSAR) observations of surface deformation in the Altiplano–Puna region (South America) where previous studies documented a broad uplift at an average rate of ∼10 mm/yr. We use data from the Sentinel-1 satellite mission to produce high-resolution velocity maps and time series of surface displacements between years 2014–2017. The data reveal that the uplift has slowed down substantially compared to the 1992–2010 epoch and is charac...
3 CitationsSource
#1Kang Wang (UCSD: University of California, San Diego)H-Index: 4
#2Yuri Fialko (UCSD: University of California, San Diego)H-Index: 37
We use space geodetic data to investigate coseismic and postseismic deformation due to the 2015 Mw 7.8 Gorkha earthquake that occurred along the central Himalayan arc. Because the earthquake area is characterized by strong variations in surface relief and material properties, we developed finite element models that explicitly account for topography and 3-D elastic structure. We computed the line-of-sight displacement histories from three tracks of the Sentinel-1A/B Interferometric Synthetic Aper...
18 CitationsSource
Source
#1Ekaterina Tymofyeyeva (UCSD: University of California, San Diego)H-Index: 3
#2Yuri Fialko (UCSD: University of California, San Diego)H-Index: 37
2 CitationsSource
#1Kang Wang (UCSD: University of California, San Diego)H-Index: 4
#2Xiaohua Xu (UCSD: University of California, San Diego)H-Index: 7
Last.Yuri Fialko (UCSD: University of California, San Diego)H-Index: 37
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Terrain observation by progressive scans (TOPS)-mode synthetic aperture radar interferometry requires high accuracy of burst alignments. Geometrical burst alignment relying on precise orbits and digital topography is not always sufficient for Sentinel-1A TOPS-mode interferometry. Enhanced spectral diversity (ESD) method was proposed to estimate a constant azimuth shift between radar images that minimizes phase discontinuities across the bursts. In some cases, however, the ESD refinement fails to...
3 CitationsSource
#1Sergey V. Samsonov (NRCan: Natural Resources Canada)H-Index: 27
#2Wanpeng Feng (NRCan: Natural Resources Canada)H-Index: 7
Last.Yuri Fialko (UCSD: University of California, San Diego)H-Index: 37
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We present RADARSAT-2 Differential Interferometric Synthetic Aperture Radar (DInSAR) observations of deformation due to fluid extraction at the Cerro Prieto Geothermal Field (CPGF) and afterslip on the 2010 M7.2 El Mayor-Cucapah (EMC) earthquake rupture during 2011–2016. Advanced multidimensional time series analysis reveals subsidence at the CPGF with the maximum rate greater than 100 mm/yr accompanied by horizontal motion (radial contraction) at a rate greater than 30 mm/yr. During the same ti...
6 CitationsSource
#1Sergey V. Samsonov (NRCan: Natural Resources Canada)H-Index: 27
#2Wanpeng Feng (NRCan: Natural Resources Canada)H-Index: 7
Last.Yuri Fialko (UCSD: University of California, San Diego)H-Index: 37
view all 3 authors...
1 CitationsSource
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#1E. K. Mitchell (UCSD: University of California, San Diego)H-Index: 3
#2Yuri Fialko (UCSD: University of California, San Diego)H-Index: 37
Last.Kevin M. Brown (UCSD: University of California, San Diego)H-Index: 54
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The deep limit to seismicity in continental crust is believed to be controlled by a transition from velocity-weakening to velocity-strengthening friction based on experimental measurements of the rate dependence of friction at different temperatures. Available experimental data on granite suggest a transition to stable creep at about 350 ° C (∼15 km depth). Here we present results from unconfined experiments on Westerly granite at both dry and hydrated conditions that show increasingly unstable ...
11 CitationsSource
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