Turn off the gas if you have reason to believe that there is a leak in your house. Keep people away from downed power lines. Check buildings for damage and hazards. Clean up broken glass or other hazardous materials that may have spilled. Keep people away from hazards until they can be cleaned up.
Aftershocks are common.
They may be strong enough to cause further damage, especially to already weakened buildings. Stay away from anything that could fall in an aftershock. If the power is off, plan to eat foods first that are in danger of spoiling. Keep your refrigerator closed as much as possible to conserve the cold. Resources Publications about how to prepare for earthquakes and other disasters American Red Cross Emergency preparation checklist .