IOWave 18: Tsunami Warning Exercise in the Indian Ocean

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Exercise IOWave18 will simulate Indian Ocean countries being put in a tsunami warning situation and require the National Tsunami Warning Centre and the National and/or Local Disaster Management Offices in each country to implement their Standard Operating Procedures.
Exercise IOWave18 will comprise two scenarios on successive days: one in the north western Indian Ocean off the coast of Iran, and the other in the eastern Indian Ocean off the west coast of northern Sumatra.

1) The first scenario will commence at 0600 UTC on 4th September and simulate a magnitude 9.0 earthquake off the coast of Iran.
2) The second scenario will commence at 0300 UTC on 5th September and simulate a magnitude 9.3 earthquake off the west coast of Northern Sumatra.

Both scenarios will generate simulated tsunami waves travelling across the Indian Ocean basin.


Type of Event Special Event
Start 04.09.2018 06:00 local time
End 05.09.2018 04:00 local time
Date to be fixed 0
Focal point Aliaga, Bernardo
Contact Bernardo Aliaga (
Country Worldwide
City Indian Ocean
Permanent Delegation Contact
Major Programme
Language of Event English
Estimated number of participants
Official Website
Link 1 Visit IOC's website
Link 2 IOC Tsunami Programme
Link 3 More information on the IOWave 18 exercise
Link 4