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By definition, a tsunami is a series of waves caused by earthquakes or undersea volcanic eruptions. Tsunami waves can travel as fast as aircraft in open water and wreak havoc on shorelines. The threat of tsunamis in the United States is generally along the Pacific Coast and in the Caribbean, but they can impact any coastal area.

Since the massive tsunamis that struck Southeast Asia, Samoa, Chile, and Japan at the beginning of this century, early warning systems have been enhanced and greater attention to preparedness efforts has been made.

Key Programs and Initiatives

• Tsunami Ready Program — Developed by the National Weather Service to help communities prepare for major tsunami events
• National Tsunami Hazard Mitigation Program — Collaborates with state and federal agencies to reduce tsunami impacts through public education, community planning, and hazard assessment

Educational Resources

• Oregon Tsunami Clearinghouse — Evacuation routes and emergency kit guidance
• Tsunami Quests — Experiential learning activities developed by Oregon State University Sea Grant
• Tsunami STEM Curriculum — Educational materials developed by Oregon State University Sea Grant