One of the most frightening and destructive phenomena of nature is a
severe earthquake and its terrible aftereffects. An earthquake is
the sudden, rapid shaking of the earth, caused by the breaking and
shifting of subterranean rock as it releases strain that has
accumulated over a long time.
For hundreds of millions of years, the forces of plate tectonics
have shaped the earth, as the huge plates that form the earth's
surface slowly move over, under and past each other. Sometimes, the
movement is gradual. At other times, the plates are locked together,
unable to release accumulated energy. When the accumulated energy
grows strong enough, the plates break free. If the earthquake occurs
in a populated area, it may cause many deaths and injuries and
extensive property damage.
While earthquakes are sometimes believed to be a West Coast
occurrence, there are actually 45 states and territories throughout
the United States that are at moderate to high risk for earthquakes
including the New Madrid fault line in Central U.S.
The 2011 East Coast earthquake illustrated the fact that it is
impossible to predict when or where an earthquake will occur, so it
is important that you and your family are prepared ahead of
time.
The following are things you can do to protect yourself, your family
and your property in the event of an earthquake.
- To begin preparing, you should build an emergency kit and make a
family communications plan.
- Fasten shelves securely to walls.
- Place large or heavy objects on lower shelves.
- Store breakable items such as bottled foods, glass, and china in
low, closed cabinets with latches.
- Fasten heavy items such as pictures and mirrors securely to walls
and away from beds, couches and anywhere people sit.
- Brace overhead light fixtures and top heavy objects.
- Repair defective electrical wiring and leaky gas connections. These
are potential fire risks. Get appropriate professional help. Do not
work with gas or electrical lines yourself.
- Install flexible pipe fittings to avoid gas or water leaks. Flexible
fittings are more resistant to breakage.
- Secure your water heater, refrigerator, furnace and gas appliances
by strapping them to the wall studs and bolting to the floor. If
recommended by your gas company, have an automatic gas shut-off
valve installed that is triggered by strong vibrations.
- Repair any deep cracks in ceilings or foundations. Get expert advice
if there are signs of structural defects.
- Be sure the residence is firmly anchored to its foundation.
- Store weed killers, pesticides, and flammable products securely in
closed cabinets with latches and on bottom shelves.
- Locate safe spots in each room under a sturdy table or against an
inside wall. Reinforce this information by moving to these places
during each drill.
- Hold earthquake drills with your family members: Drop, cover and
hold on.
Drop, cover and Hold On. Minimize your movements to a few steps to a
nearby safe place and if you are indoors, stay there until the
shaking has stopped and you are sure exiting is safe.
If Indoors
- DROP to the ground; take COVER by getting under a sturdy table or
other piece of furniture; and HOLD ON until the shaking stops. If
there isn't a table or desk near you, cover your face and head with
your arms and crouch in an inside corner of the building.
- Stay away from glass, windows, outside doors and walls, and anything
that could fall, such as lighting fixtures or furniture.
- Stay in bed if you are there when the earthquake strikes. Hold on
and protect your head with a pillow, unless you are under a heavy
light fixture that could fall. In that case, move to the nearest
safe place.
- Do not use a doorway except if you know it is a strongly supported,
load-bearing doorway and it is close to you. Many inside doorways
are lightly constructed and do not offer protection.
- Stay inside until the shaking stops and it is safe to go outside. Do
not exit a building during the shaking. Research has shown that most
injuries occur when people inside buildings attempt to move to a
different location inside the building or try to leave.
- DO NOT use the elevators.
- Be aware that the electricity may go out or the sprinkler systems or
fire alarms may turn on.
If Outdoors
- Stay there.
- Move away from buildings, streetlights, and utility wires.
- Once in the open, stay there until the shaking stops. The greatest
danger exists directly outside buildings, at exits and alongside
exterior walls. Many of the 120 fatalities from the 1933 Long Beach
earthquake occurred when people ran outside of buildings only to be
killed by falling debris from collapsing walls. Ground movement
during an earthquake is seldom the direct cause of death or injury.
Most earthquake-related casualties result from collapsing walls,
flying glass, and falling objects.
If in a Moving Vehicle
- Stop as quickly as safety permits and stay in the vehicle. Avoid
stopping near or under buildings, trees, overpasses, and utility
wires.
- Proceed cautiously once the earthquake has stopped. Avoid roads,
bridges, or ramps that might have been damaged by the
earthquake.
If Trapped Under Debris
- Do not light a match.
- Do not move about or kick up dust.
- Cover your mouth with a handkerchief or clothing.
- Tap on a pipe or wall so rescuers can locate you. Use a whistle if
one is available. Shout only as a last resort. Shouting can cause
you to inhale dangerous amounts of dust.
- When the shaking stops, look around to make sure it is safe to move.
Then exit the building.
- Expect aftershocks. These secondary shockwaves are usually less
violent than the main quake but can be strong enough to do
additional damage to weakened structures and can occur in the first
hours, days, weeks, or even months after the quake.
- Help injured or trapped persons. Remember to help your neighbors who
may require special assistance such as infants, the elderly and
people with access and functional needs. Give first aid where
appropriate. Do not move seriously injured persons unless they are
in immediate danger of further injury. Call for help.
- Look for and extinguish small fires. Fire is the most common hazard
after an earthquake.
- Listen to a battery-operated radio or television for the latest
emergency information.
- Be aware of possible tsunamis if you live in coastal areas. These
are also known as seismic sea waves (mistakenly called "tidal
waves"). When local authorities issue a tsunami warning, assume that
a series of dangerous waves is on the way. Stay away from the
beach.
- Use the telephone only for emergency calls.
- Go to a designated public shelter if your home had been damaged and
is no longer safe. Text SHELTER + your ZIP code to 43362 (4FEMA) to
find the nearest shelter in your area (example: shelter 12345).
- Stay away from damaged areas. Stay away unless your assistance has
been specifically requested by police, fire, or relief
organizations. Return home only when authorities say it is
safe.
- Be careful when driving after an earthquake and anticipate traffic
light outages.
- After it is determined that it's safe to return, your safety should
be your primary priority as you begin clean up and recovery.
- Open cabinets cautiously. Beware of objects that can fall off
shelves.
- Put on long pants, a long-sleeved shirt, sturdy shoes and work
gloves to protect against injury from broken objects.
- Clean up spilled medicines, bleaches, gasoline or other flammable
liquids immediately. Leave the area if you smell gas or fumes from
other chemicals.
- Inspect the entire length of chimneys for damage. Unnoticed damage
could lead to a fire.
- Inspect utilities.
- Check for gas leaks. If you smell gas or hear blowing or hissing
noise, open a window and quickly leave the building. Turn off the
gas at the outside main valve if you can and call the gas company
from a neighbor's home. If you turn off the gas for any reason, it
must be turned back on by a professional.
- Look for electrical system damage. If you see sparks or broken or
frayed wires, or if you smell hot insulation, turn off the
electricity at the main fuse box or circuit breaker. If you have to
step in water to get to the fuse box or circuit breaker, call an
electrician first for advice.
- Check for sewage and water lines damage. If you suspect sewage lines
are damaged, avoid using the toilets and call a plumber. If water
pipes are damaged, contact the water company and avoid using water
from the tap. You can obtain safe water by melting ice cubes.