The subsequent damage by the major earthquake in sichuan china will be tremendous and out of most people can image. WengChuang county( the earthquake center)is located in the Ming river (the one of largest tributary of Yangzi river),the rock of the both bank of the Ming rive is loose, and the earthquake will cause large scale landslide ，and the river interdiction could be forescasted, even worse there are lot of dams in the Wengchuang county, God bless