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Tsunami Early Warning System for the Indian Ocean is completed

28.12.2010, Age: 2905 days

Taken from ScienceDaily (Dec. 24, 2010) — Six years after the tsunami disaster of 26/12/2004, the set-up of the German-Indonesian Tsunami Early Warning System for the Indian Ocean (GITEWS) has been completed. The project ends on 31 March 2011. After that, Indonesia accepts the sole responsibility for the overall system.

"The innovative technical approach of GITEWS is based on a combination of different sensors, whose central element is a fast and precise detection and analysis of earthquakes, supported by GPS measurements," says Professor Reinhard Hüttl, Scientific Director of the GFZ German Research Centre for Geosciences. "The GFZ-developed evaluation of Seismology via the SeisComP3 system proved to be so fast and reliable that it has now been installed in over 40 countries."

A tsunami warning takes place no more than five minutes after a submarine earthquake, based on all the available information from the 300 stations that were built throughout Indonesia in the past 6 years. These include seismometers, GPS stations, tide gauges and buoy systems. Via a tsunami-simulation system, the information is converted into a situation map providing the appropriate warning levels for the affected coastline. A key outcome of GITEWS project is, however, that the buoy systems do not contribute to this process that occurs in these first few minutes. There are therefore considerations to shift the GITEWS buoys further into the open ocean and to use them to verify an ocean-wide tsunami that could threaten other countries bordering the Indian Ocean.

Continue reading at Science Daily


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Science Daily

Published By

Dr. Dick van der Wateren

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seismology, Tsunami, natural disaster, detection, warning system, earthquake


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