Abstract
In Xinmo Village, Maowen, Sichuan Province large landslide occurred on 24 Jun 2017. On the collapsed slope InSAR images were produced using ALOS/PALSAR data and ALOS-2/PALSAR-2 data. Then, they were interpreted to detect precursor of landslide surface deformation. Four periods of InSAR images were produced observed from Jul 2007 to Dec 2016; however, such the deformation was not interpreted until six months before the landslide occurrence.