Drawing of an explosion Explosions happen as a result of different scenarios, including science lab experiments; gas leaks from heating and ventilation systems within buildings, water boilers and heaters; gas leaks from ruptured gas lines due to construction; use of man-made incendiary devices; and other criminal activity. 

In the event of an explosion:

  1. Evacuate the area of the explosion.
  2. When you reach a safe area dial 911, and provide information about the explosion.
  3. Stay away from windows, mirrors, overhead fixtures, electrical equipment, and unstable objects.
  4. Open doors carefully and watch for falling objects.
  5. Do not use elevators.
  6. Do not use open flames, such as lighters.
  7. Do not move seriously injured persons unless they are in obvious immediate danger.
  8. Remain at the assembly area until first responders advises that it is safe to return.
  9. Position yourself upwind from smoke and fumes if possible.
  10. Comply with directions from fire and police officials on the scene.