A tsunami is a series of waves that may be dangerous and destructive. When you hear a tsunami warning, move at once to higher ground and stay there until local authorities say it is safe to return home.
Find out if your home is in a danger area.
Know the height of your street above sea level and the distance of your street from the coast. Evacuation orders may be based on these numbers.
Be familiar with the tsunami warning signs.
Because tsunamis can be caused by an underwater disturbance or an earthquake, people living along the coast should consider an earthquake or a sizable ground rumbling as a warning signal. A noticeable rapid rise or fall in coastal waters is also a sign that a tsunami is approaching.
Make sure all family members know how to respond to a tsunami.
Make evacuation plans.
Pick an inland location that is elevated. After an earthquake or other natural disaster, roads in and out of the vicinity may be blocked, so pick more than one evacuation route.
Teach family members how and when to turn off gas, electricity, and water.
Teach children how and when to call 9-1-1, police or fire department, and which radio station to listen for official information.
Have disaster supplies on hand.
Flashlight and extra batteries
Portable, battery-operated radio and extra batteries
First aid kit and manual
Emergency food and water
Nonelectric can opener
Cash and credit cards
Develop an emergency communication plan
In case family members are separated from one another during a tsunami (a real possibility during the day when adults are at work and children are at school), have a plan for getting back together.
Ask an out-of-state relative or friend to serve as the "family contact." After a disaster, often it's easier to call long distance. Make sure everyone knows the name, address, and phone number of the contact person.
Contact your local emergency management office or American Red Cross chapter for more information on tsunamis.
Listen to a radio or television to get the latest emergency information, and be ready to evacuate if asked to do so.
If you hear an official tsunami warning or detect signs of a tsunami, evacuate at once. Climb to higher ground. A tsunami warning is issued when authorities are certain that a tsunami threat exists.
Stay away from the beach.
Never go down to the beach to watch a tsunami come in. If you can see the wave you are too close to escape it.
Return home only after authorities advise it is safe to do so.
A tsunami is a series of waves. Do not assume that one wave means that the danger over. The next wave may be larger than the first one. Stay out of the area.
Stay tuned to a battery-operated radio for the latest emergency information.
Help injured or trapped persons.
Give first aid where appropriate. Do not move seriously injured persons unless they are in immediate danger of further injury. Call for help.
Remember to help your neighbors who may require special assistance--infants, elderly people, and people with disabilities.
Stay out of damaged buildings. Return home only when authorities say it is safe.
Enter your home with caution.
Use a flashlight when entering damaged buildings. Check for electrical shorts and live wires. Do not use appliances or lights until an electrician has checked the electrical system.
Open windows and doors to help dry the building.
Shovel mud while it is still moist to give walls and floors an opportunity to dry.
Check food supplies and test drinking water.
Fresh food that has come in contact with flood waters may be contaminated and should be thrown out. Have tap water tested by the local health department.
Health Effects of Tsunamis
Immediate health concerns:
After the rescue of survivors, the primary public health concerns are clean drinking water, food, shelter, and medical care for injuries.
Flood waters can pose health risks such as contaminated water and food supplies.
Loss of shelter leaves people vulnerable to insect exposure, heat, and other environmental hazards.
The majority of deaths associated with tsunamis are related to drownings, but traumatic injuries are also a primary concern. Injuries such as broken limbs and head injuries are caused by the physical impact of people being washed into debris such as houses, trees, and other stationary items. As the water recedes, the strong suction of debris being pulled into large populated areas can further cause injuries and undermine buildings and services.
Medical care is critical in areas where little medical care exists.
Natural disasters do not necessarily cause an increase in infectious disease outbreaks. However, contaminated water and food supplies as well as the lack of shelter and medical care may have a secondary effect of worsening illnesses that already exist in the affected region.
Decaying bodies create very little risk of major disease outbreaks.
The people most at risk are those who handle the bodies or prepare them for burial.
The effects of a disaster last a long time. The greater need for financial and material assistance is in the months after a disaster, including
surveying and monitoring for infectious and water- or insect-transmitted diseases;
diverting medical supplies from nonaffected areas to meet the needs of the affected regions;
restoring normal primary health services, water systems, housing, and employment; and
assisting the community to recover mentally and socially when the crisis has subsided.
More Tsunami Information
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