How can we estimate the impacts of earthquakes on water resources?

Nepal was hit by a destructive earthquake on 24th April 2015. Thousands of lives were lost with in addition to huge damage. The earthquake also affected the water resources significantly. The most affected water resources are stone spouts and dug wells according to our survey. The level of water has increased in some spouts, while others are yielding less water. We are planning on evaluating the impacts on water resources by the earthquake in affected districts of Nepal. We are seeking for the best method to do it. If you have done a similar impact study, please share the methodology, data collected and critical issues to be surveyed. I would appreciate your valuable suggestions.