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Summary of Proposal GEO1217

TitleTSX time-series analysis of postseismic deformation following large earthquakes
Investigator Motagh, Mahdi - Helmholtz Center Potsdam, GFZ, Geodesy and Remote Sensing
Team Member
Mrs. Lubitz, Christin - Helmholtz Center Potsdam, Geodesy and Remote Sensing
SummaryPostseismic deformation following large earthquake ruptures can generally be modeled using one of the following mechanisms: (1) short-term afterslip in the upper/lower crust on mainshock plane, (2) poroelastic rebound, and (3) a long-term viscoelastic relaxation in the lower crust/upper mantle. In this work, we will use InSAR time-series techniques using TSX observations to measure postseismic deformation following large continental and inter-continental earthquakes. We utilize TSX SAR data and exploit various time-series algorithms to accurately measure postseismic ground displacement. Our results are compared to available ground-based measurements for validation and calibration, and inverted using elastic and visco-elastic earth models to constrain fault deformation parameters.

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DLR 2004-2016