All U.S. ocean coasts can be impacted by tsunamis. Some areas have more risk than others. Over the past 150 years, destructive and deadly tsunamis have struck Hawaii, Alaska, California, Oregon, Washington, American Samoa, Puerto Rico, and the U.S. Virgin Islands.
Are you in the Zone?
A key step in being prepared for tsunamis is to find out if your home, school, workplace or other frequently visited places are in a tsunami hazard or evacuation zone and if your community has had tsunamis in the past. Your local emergency management office, your state's geologic or tsunami hazard website and your local National Weather Service Weather Forecast Office are good resources for information about your risk.
Also, find out if your community is TsunamiReady. Communities recognized by the National Weather Service as TsunamiReady are better prepared for tsunamis.
Understand the Warnings
There are two ways that you may be warned that a tsunami is coming: an official tsunami warning and a natural tsunami warning. Both are equally important. You may not get both. Be prepared to respond immediately to whatever you hear or see first.