Uncertainty of the 2003 BAM Mw=6.4 earthquake fault model inverted from ENVISAT SAR interferometric data

The authors collected several papers about Bam earthquake of 26^th Dec 2003 with 6.4-magnitude from 2004 to 2007. We found that up to now there exist two different conclusions that the seismic fault is one or two. Most of papers used SAR interferometry to constrain the surface deformation and invert the source parameters by linear or non-linear methods. This paper have re-processed the 3 pairs of interferograms by the 4 scenes European remote sensing satellite images (ENSAT-ASAR), including two coseismic pairs and one postseismic pair. The authors think there is much uncertainty of source model only based on the interferometry and correlation mapping because of error in the interferometric results and uncertainty of inversion methods. The paper analyzed how to influence the uncertainty of source model from errors of interferomegrams and present inversion methods.