Measuring near field coseismic displacements from SAR images: Application to the Landers Earthquake
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چکیده
منابع مشابه
Measuring ground displacements fromSAR amplitude images : application to the Landers earthquake
' ERS SAR amplitude images are utilized to map ground displacements from a sub-pixel correlation method. It yields a _ground two-dimensional displacement field with independent measurements about every 128m in azimuth · and 250m in range. The accuracy depends on the characteristics of tbe images. For the Landers test case, the 1-cr uncertainty is 0 .8m in range and 0.4m in azimuth . We show tha...
متن کاملNear-field investigations of the landers earthquake sequence, april to july 1992.
The Landers earthquake, which had a moment magnitude (M(w)) of 7.3, was the largest earthquake to strike the contiguous United States in 40 years. This earthquake resulted from the rupture of five major and many minor right-lateral faults near the southern end of the eastern California shear zone, just north of the San Andreas fault. Its M(w) 6.1 preshock and M(w) 6.2 aftershock had their own a...
متن کاملOn the derivation of coseismic displacement fields using differential radar interferometry The Landers earthquake
We present a map of the coseismic displacement field resulting from the Landers, California, June 28, 1992, earthquake derived using data acquired from an orbiting high-resolution radar system. We achieve results more accurate than previous space studies and similar in accuracy to those obtained by conventional field survey techniques. Data from the ERS 1 synthetic aperture radar instrument acq...
متن کاملOn the derivation of coseismic displacement elds using di erential radar interferometry: the Landers earthquake
di erential radar interferometry: the Landers earthquake Howard A. Zebker, Paul Rosen, Richard M. Goldstein, Andrew Gabriel, and Charles L. Werner Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove Drive Pasadena, CA 91109 May 10, 1994 To be subm itted to: JGR Earth Please address corresp ondence to: Howard A. Zebker MS 300-227 Jet Propulsion Laboratory 4800 Oak Grove D...
متن کاملQuantifying near-field and off-fault deformation patterns of the 1992 Mw 7.3 Landers earthquake
Coseismic surface deformation in large earthquakes is typically measured using field mapping and with a range of geodetic methods (e.g., InSAR, lidar differencing, and GPS). Current methods, however, either fail to capture patterns of near-field coseismic surface deformation or lack preevent data. Consequently, the characteristics of off-fault deformation and the parameters that control it rema...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 1999
ISSN: 0094-8276
DOI: 10.1029/1999gl900524