Topic: Tsunami warning system

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Twenty-two sirens have been installed from Waimairi Beach to Sumner, the system has been operational from 1 July 2012. The sirens are located in areas where scientific advice has shown a vulnerability of the area, the level of evacuation is difficult, population density is high and where there are the best sound contours. Each siren has a sound contour based on how and where it is mounted.

 

Tsunamic warning system location map - PDF map from the Christchurch City Council - locations of the sirens.

Audio of the test on Sunday, 22 July - siren at 28 Rodney Street(recorded approximately 100 m away)

Siren detail by Blair Parkes Tsunami sirens by Blair Parkes
microphone by Blair Parkes  

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