Source: National Center for Environmental Health — Content from the Centers for Disease Control and Prevention (public domain).
Key points
* Learn more about tsunamis and get information about health concerns after a tsunami including food and water safety.
* Know how to prepare for a tsunami and how to stay safe during and after one.
Prepare for tsunamis 
Know how to prepare for a tsunami and how to stay safe during and after one. Tsunamis, also known as seismic sea waves, are a series of enormous waves created by an underwater disturbance such as an earthquake, landslide, volcanic eruption, or meteorite. A tsunami can strike anywhere along most of the U.S. coastline. Know how to prepare for a tsunami and how to stay safe during and after one. Ready.gov- Tsunamis NOAA Tsunamis NOAA Tsunami Program Red Cross Tsunami Preparedness U.S. Tsunami Warning System EPA Tsunami Stay safe after a tsunami After a tsunami, you may face a number of hazards to your health. Know what to do to protect yourself and your loved ones after a tsunami. Protect yourself from floodwater. Floodwater and standing water can be dangerous and can make you vulnerable to infectious diseases, chemical hazards, and injuries. Floodwater can also pose a drowning risk for everyone— regardless of their ability to swim. Swiftly moving shallow water can be deadly, and even shallow standing water can be dangerous for small children.
* Stay out of floodwater—it can contain many things that can hurt you or make you sick.
* Always follow warnings about flooded roads.
* Don’t drive in flooded areas—cars or other vehicles won’t protect you from floodwaters. They can be swept away or may stall in moving water.
Keep Reading: Safety Guidelines: FloodwaterProtect your physical health. After a tsunami, there are a number of hazards that can make you sick or hurt you. Know how to protect yourself and others from injury or illness after a disaster. Keep Reading: What to Do to Prevent Getting Hurt or Sick After a DisasterClean up safely.
* Take steps to protect yourself and your loved ones during your cleanup after a tsunami.
* Follow our cleanup tips and monitor your radio or television for up-to-date emergency information.
Keep Reading: Guidelines for Cleaning Safely After a DisasterTake care of your emotional health. During and after a disaster, it is natural to experience different and strong emotions. Coping with these feelings and getting help when you need it will help you, your family, and your community recover from a disaster. Contact SAMHSA’s Disaster Distress Helpline Disaster Distress Helpline: CALL or TEXT 1-800-985-5990 (press 2 for Spanish). People with deafness or hearing loss can use their preferred relay service to call 1-800-985-5990.
* Connect with family, friends, and others in your community.
* Take care of yourself and each other, and know when and how to seek help.
Keep Reading: Coping After a Disaster or Traumatic Event