Many geospatial professionals, such as those on the GIS Stack Exchange, have asked what they can do with geospatial technologies to help in the aftermath of the tornadoes in Oklahoma or for other disasters. There are several crisis maps online including Google’s Oklahoma Crisis Map and ESRI’s Public Information Map. The American Red Cross has the Safe and Well Communication site and a map of available shelters. The Federal Emergency Management Agency (FEMA), the NOAA National Weather Service, and other
There are organizations that do crisis mapping, the most well-known being the URISA GIS Corps. Many times local areas have their own crisis mappers organizations which work with local geospatial groups, first responders, and municipalities. The volunteer profile for Sean Bohac from RECON Environmental gives a good insight into what it is like to be a GIS volunteer in a disaster situation. Anahi Ayala Iacucci talks about other types of crisis mapping on her Diary of a Crisis Mapper website.
Crisis mapping is often an overlap of existing geospatial infrastructure, when available, and disaster response by geospatial professionals and neogeographers. The National Academy of Sciences has an open book called, “Successful Response Starts with a Map: Improving Geospatial Support for Disaster Management (2007)” by the Board on Earth Sciences and Resources (BESR). The City of Moore, Oklahoma publicly available interactive map includes tornado damaged parcels from 2003 and many utilities including fire hydrants, which many towns have not located and mapped yet. They also ask that donations be made through The Red Cross.
I wasn’t able to locate any information related to directly related volunteer efforts, so please feel free to post any information you might have. Thank you.