You should realize that Twitter had become a critical source of information about people in collapsed buildings. Their friends, family and relatives were writin

You should realize that Twitter had become a critical source of information about people in collapsed buildings. Their friends, family and relatives were writing detailed address information in order to help rescue efforts and reach these people faster. All sorts of resource requests were also part of these tweets, so it is also part of understanding priorities for each affected area. There are already software projects collecting this information, organizing them to a structured form and carrying them over to rescue authorities.