摘要：We investigate surface deformations associated with two moderate-sized shallow earthquakes that occurred in the southeastern and northwestern stable regions of Mongolia using an analysis of ENVISAT/ASAR and ALOS/PALSAR data, respectively.Differential interferograms generated by a standard two-pass interferometric analysing technique depicted an uplift of up to ~1 cm for the M W 5.2 Hatanbulag composite earthquake (20 July, 2005, moderate-size foreshock in three hours) and a subsidence of up to ~10 cm for the M W 5.1 Büsiin Gol earthquake (19 January, 2008) in the radar line-of-sight directions, respectively.We inverted the observed deformations for the source parameters of the two earthquakes using elastic dislocation modeling.Our preferred model has geodetic moments of ~3.83 × 1017 ( M w 5.6) and 5.56×1016 N m ( M w 5.1) for the Hatanbulag and Büsiin Gol earthquakes, respectively.
