About 34 rivers were blocked in the earthquake region, which are primarily located in Pingwu, Beichuan, Jiangyou, Qingchuan and Moxian counties.

• 灾区发生河道阻塞34处，主要分布在龙门山北段的平武、北川、江油、青川、茂县等山体大量滑坡的县市；