https://www.mapbox.com/blog/nepal-earthquake-animation/
In the days since the earthquake in Nepal, thousands of humanitarian
mappers have sprung into action to fill in gaps in the map in the affected
area. In addition to the 3960 previously mapped miles of roads and 182,706
buildings, more than 2000 mappers have recorded 13,199 new miles of
roads and 110,681 new buildings.