If you are interested and wish to contribute to the mapping response for the Nepal earthquake:
Contact the Humanitarian OpenStreetMap Team details at http://opensourcegeospatial.icaci.org/2015/04/mapping-response-contributions-for-nepal/
Contact Crisismappers, a group that steps up to help out with mapping issues after natural disasters:
"The U.S. Geological (USGS) and other scientific institutions are using social media and crowdsourcing to learn more about earthquakes, according to a new report. These techniques provide inexpensive and rapid data to augment and extend the capabilities provided by traditional monitoring techniques"
To continue reading: http://wilsoncommonslab.org/2013/07/10/report-looks-at-successful-government-crowdsourcing-efforts-for-earthquake-monitoring/_
The Geoinformatics Center (GIC) of the Asian Institute of Technology (AIT) has been designated as the Project Manager by the International Charter for processing the satellite data acquired immediately after the catastrophic disaster in the north-east part of Japan on 11 March, 2011. GIC has received a large number of satellite data of the affected areas and these data have been processed at GIC to prepare maps showing the tsunami affected areas. All these maps are now available at the International Charter's Website below:
Maps are also uploaded in our web site as well: