"Northeastern University in Boston has just launched a study of how mobile phones are used for communication around emergencies, with two surveys to examine phone use during Hurricane Sandy, and after the bombings at the Boston Marathon. Both surveys utilize special Android apps that, while preserving privacy, identify the contacts that participants spoke to and texted with most frequently during and after these events. The app then generates a survey that asks participants about how they were affected by events (e.g., Did they lose electricity during Sandy? How near the bombings were they?), their relationships to important contacts, as well as questions about their reliance on social and mainstream media."
United States Department of Homeland Security, Science and Technology, First Responders: http://www.firstresponder.gov/