Indian Ocean Wave 11

Indian Ocean Wave 11

At the 8th Session of the Intergovernmental Coordination Group for the Indian Ocean Tsunami Warning and Mitigation System (ICG/IOTWS-VIII)held in Melbourne, Australia, 3–6 May 2011, the ICG decided to hold an Indian Ocean Wave Exercise (IOWave11) on 12th October 2011.

A Task Team was established to organise it, with membership comprising Australia, India, Indonesia, Malaysia and Oman. The timetable for the transition to the Regional Tsunami Advisory Service Provider (RTSP) service for the IOTWS was adopted, with the service scheduled to commence on 12 October 2011, following the IOWave11 exercise.

An Indian Ocean-wide tsunami exercise is an effective tool for evaluating the readiness of the IOTWS and to identify changes that can improve its effectiveness. There have been few major Indian Ocean tsunamis in the last few years and the IOTWS must be prepared.


For more information visit the IOC's IO Wave 2011 Exercise webpage, click here.


Informational Documents

Document Title Format/Size
 IOC Circular Letter No 2403 (English) PDF (1.5 MB)
 IO Wave11 Exercise Manual (English) PDF (224 KB)


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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.

TsunamiTeacher USA
Tsunami Basics

Also on YouTube youtube_logo
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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.


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. 



Where the First Wave Arrives in Minutes

Available in English, Bahasa, Spanish and French.


DVD copies for PC and Macintosh computers are available free of charge from the ITIC, Hawaii (

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