This document discusses how social media has changed crisis communication by increasing the speed at which information spreads. It provides examples where social media provided insights into crises, such as crowd movements, within minutes of incidents occurring. It argues crisis management must now incorporate social media for both information gathering and communication to address this new information velocity and ensure accurate information is shared. Officials should claim information by communicating on social media from the start of incidents. While information on social media may not be reliable, it can provide new perspectives to aid crisis response.