Sensing a Tsunami

Tsunamis can be detected using our human senses.
Recognize a tsunami’s natural warning signs.

FEEL

  • Big local earthquakes may cause tsunamis
  • FEEL the ground shaking severely, or for a long time?

 

SEE

  • Tsunami may be preceded by a rapid fall in sea level as the ocean recedes, exposing reefs, rocks, and fishes on the sea bottom.
  • Tsunami often come ashore as a wall of water, and quickly flood inland.
  • SEE an unusual disappearance of water, or oncoming wall of water?

 

HEAR

  • Abnormal ocean activity, a wall of water, and
    approaching tsunami create a loud “roaring”
    sound similar to that of a train or jet aircraft.
  • HEAR the roar?

 

RUN

  • Don’t wait for official evacuation orders.
  • Immediately leave low-lying coastal areas.
  • Move inland to higher ground.
  • RUN if you see a tsunami coming!

 

Download and print these natural warning signs: Sensing a Tsunami (PDF)

View all ITIC's Tsunami Safety flyers in English, Bahasa (Indonesia), Tongan and Spanish. Click here.

 

 

          

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Featured Resources

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Regional Disaster Information Center (Latin America & the Caribbean)


A database of Spanish language materials focused on tsunami preparedness.
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Post-Tsunami Survey:
El Salvador Summary Video

Learn the basics of a post-tsunami survey.
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TsunamiTeacher USA
Tsunami Basics
  

Also on YouTube youtube_logo
(w/closed captioning)
 

Learn the basics of tsunamis. Available in English and Samoan.

 
Tsunamis on the Move








Tsunami Awareness Poster


Awareness poster available in English, Chinese, French, Japanese, Korean, Portuguese, Singalese.

 
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Global Hazard Maps


Posters of Tsunami Sources, Significant Earthquakes and Significant Volcanic Eruptions. Also Tsunami Sources Icosohedron Globe.

 
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Tsunami, The Great Waves

Available in English, Spanish, French and Chinese.

 

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Tsunami Glossary


Available in English, Arabic, Spanish, French and Bahasa. 

 

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Where the First Wave Arrives in Minutes

Available in English, Bahasa, Spanish and French.
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TsunamiTeacher

DVD copies for PC and Macintosh computers are available free of charge from the ITIC, Hawaii (itic.tsunami@noaa.gov).

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© 2014 International Tsunami Information Center | A UNESCO/IOC-NOAA Partnership
1845 Wasp Boulevard, Building 176, Honolulu, HI 96818, USA | Tel: +1 808 725 6050 | Fax: +1 808 725 6055