Overall
Why Prepare?
Citizen
Local
State
Federal
Basic Preparedness
Getting Informed
Planning and
Checklists
Special Needs
Disaster Supplies Kit
Shelter
Others
Natural Hazards
Floods
Hurricanes
Thunderstorms and lightning
Tornadoes
Winter storms and extreme cold
Extreme heat
Earthquakes
Volcanoes
Landslides and debris flow
Tsunamis
Fires
Wildfires
Technological Hazards
Hazardous materials incidents
Household chemical emergencies
Nuclear power plant emergencies
Terrorism
Explosions
Biological threats
Chemical threats
Nuclear blasts
Radiological dispersion device events
Recovering from Disaster
Health and safety guidelines
Returning home
Seeking disaster assistance
Coping with disaster
Helping others
|
Earthquakes
One of the most frightening and destructive phenomena of
nature is a severe earthquake and its terrible
repercussions. An earthquake is a sudden movement of the
earth, caused by the abrupt release of strain that has
accumulated over a long time. If the earthquake occurs in a
populated area, it may cause many deaths and injuries and
extensive property damage.
Know the Terms:
Familiarize yourself with these terms to help identify an
earthquake hazard:
Earthquake: A sudden slipping or movement of a portion of
the earth’s crust accompanied and followed by a series of
vibrations
Aftershock: An earthquake of similar or lesser intensity
that follows the main earthquake
Fault: The fracture across which dislocation has occurred
during an earthquake. The slippage may range from less than
an inch to more than 10 yards
Epicenter: The place on the earth’s surface directly above
the point on the fault where the earthquake ruptures began.
Once fault slippage begins, it expands along the fault
during the earthquake and can extend hundreds of miles
before stopping
Seismic Waves: Vibrations that travel outward from the
earthquake fault at speeds of several miles per second.
Although fault slippage directly under a structure can cause
considerable damage, the vibrations of seismic waves cause
most of the destruction during earthquakes
Magnitude: The amount of energy released during an
earthquake, which is computed from the amplitude of the
seismic waves. Each whole number on the scale represents an
increase of about 30 times more energy released than the
previous whole number represents. Therefore, an earthquake
measuring 6.0 is about 30 times more powerful than one
measuring 5.0.
Take Protective Measures
What can I do Before an Earthquake?
The following are things you can do to protect your
surroundings in the event of an earthquake:
Get professional help to repair defective electrical wiring,
leaky gas lines and inflexible utility connections
Bolt down and secure to the wall studs your water heater,
refrigerator, furnace and gas appliances
Place large or heavy objects on lower shelves
Fasten shelves, mirrors and large picture frames to walls
Store bottled foods, glass, china and other breakables on
low shelves or in cabinets that fasten shut
Be sure the residence is firmly anchored to its foundation
Install flexible pipe fittings to avoid gas or water leaks
Locate safe spots in each room under a sturdy table or
against an inside wall
Hold earthquake drills with your family members
Drop, cover and hold on tight
What do I do During an Earthquake?
Minimize your movements during an earthquake to a few steps
to a nearby safe place. Stay indoors until the shaking has
stopped and you are sure exiting is safe.
If you are:
Indoors:
Take cover under a sturdy desk, table or bench, against an
inside wall and hold on
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
Stay inside until shaking stops and it is safe to go outside
Most injuries during earthquakes occur when people are hit
by falling objects when entering into or exiting from
buildings
Be aware that the electricity may go out or the sprinkler
systems or fire alarms may turn on
DO NOT use the elevators
Outdoors:
Stay there
Move away from buildings, streetlights and utility wires
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, watching
for road and bridge damage
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
What do I do After an Earthquake?
Be prepared for aftershocks that can cause more damage
Open cabinets cautiously while watching out for falling
items
Stay away from damaged areas unless your assistance has been
specifically requested by police, fire or relief
organizations
|