What To Do Before, During and After an Earthquake

Earthquake Hazards Maps | Earthquake Facts About New Madrid Seismic Zone | History of Earthquakes in Missouri
Increased Awareness--Earthquake Hazard in Missouri | Measuring Earthquakes | Relationship of Increasing Magnitudes
Relationship Between Richter Magnitude and Modified Mercalli Intensity | Understanding Earthquakes
Sumatran Earthquake Recorded by Missouri Observation Well Network | What to do Before, During and After an Earthquake

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before an earthquake
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Movement of the ground seldom is the actual cause of death or injury. Most casualties result from partial building collapses, falling objects and debris, like toppling chimneys, falling bricks, ceiling plaster, and light fixtures. Many of these conditions can be prevented by taking a few steps now to prepare.

 
  • Place heavier objects on lower shelves to prevent breakage and personal injury.
  • Bolt to walls anything that might topple, like top-heavy shelves, appliances, and furniture. Don't hang heavy picture frames or mirrors over the bed. Don't hang plants in heavy pots that could swing free of hooks.
  • Strap your water heater to wall studs with metal plumbing tape to prevent broken pipes and fires.
  • Locate master switches and shutoff valves for all utilities and know how to turn them off. Your local utility company can show you.
  • Keep on hand a flashlight; a portable radio with fresh batteries; a first-aid kit; a fire extinguisher (Class C is designed to use safely on any type of fire, including electrical, grease, and gas); a three-day supply of fresh water; nonperishable, ready-to-eat foods; and an adjustable wrench for turning off gas and water.
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During an earthquake, you may experience a gentle shaking that becomes violent in a second or two and knocks you off your feet, or you may be jarred first by a violent jolt- as though your house was hit by a truck. A second or two later, you feel the shaking and, as in the first example, it may be impossible to move from one room to another.

 
  • Stay calm and stay put.
  • If indoors, crouch under a desk or heavy table, or brace yourself in a doorway. Stay away from windows or brick masonry (like fireplaces), bookcases, china cabinets, and mirrors.
  • If outdoors, stay away from buildings, trees, and power lines.
  • If driving, move away from overpasses, stop slowly in a safe area, and stay in your vehicle. Stay off bridges. Listen to the radio.
  • If in a high-rise building, stay in the building, on the same floor. Get under a desk and stay away from outside walls and windows. Do not use the elevator.
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  • Wear sturdy shoes to protect your feet from broken glass.
  • Check for injuries and apply necessary first aid.
  • Check gas, water, electrical lines, and appliances for damage. If you smell gas or see a broken line, shut off the main valve. Do not switch on the gas or electricity again until the power company checks your home. Do not light matches, use any open flames, or turn on electrical switches or appliances until you are certain that there are no gas leaks.
  • Check to see that sewage lines are intact before you use the toilet. Plug bathtub and sink drains to prevent sewage backup.
  • Clean up spilled medicines, bleaches, gasoline, and other flammable liquids.
  • Check for building damage and potential safety hazards- like cracks around chimneys or foundations.
  • Be prepared for aftershocks, which can further damage weakened structures.
  • Listen to the radio for public-safety instructions.
  • Do not use the telephone except in an emergency.