For those trapped in rubble after an earthquake, survival depends on many factors, including weather and access to water and air. Experts say victims can survive for a week or more if their injuries aren’t too severe and the weather isn’t too hot or cold. Most rescues happen in the 24 hours after a disaster. The chances of survival drop with each day after that. Trapped victims are more likely to survive if they are in a debris-free pocket that prevents major injury. Beyond that, having air to breathe and water to drink are crucial.