Articles | Volume 17, issue 5
https://doi.org/10.5194/nhess-17-685-2017
https://doi.org/10.5194/nhess-17-685-2017
Research article
 | 
15 May 2017
Research article |  | 15 May 2017

Stand-alone tsunami alarm equipment

Akio Katsumata, Yutaka Hayashi, Kazuki Miyaoka, Hiroaki Tsushima, Toshitaka Baba, Patricio A. Catalán, Cecilia Zelaya, Felipe Riquelme Vasquez, Rodrigo Sanchez-Olavarria, and Sergio Barrientos

Data sets

Damages by the 2011 off the Pacific coast of Tohoku earthquake and measures implemented by the police National Police Agency https://www.npa.go.jp/archive/keibi/biki/higaijokyo.pdf

The unified seismic catalog of Japan Japan Meteorological Agency http://www.data.jma.go.jp/svd/eqev/data/bulletin/hypo.html

Strong motion data Japan Meteorological Agency http://www.data.jma.go.jp/svd/eqev/data/kyoshin/jishin/index.html

Registration of siginificant events University of Chile http://evtdb.csn.uchile.cl

Preliminary Result 02/27/2010 (Mw 8.8) Chile, Source Models of Large Earthquakes A. Sladen http://www.tectonics.caltech.edu/slip_history/2010_chile/index.html

Apr./01/2014 (Mw 8.1), Iquique, Chile, Source Models of Large Earthquakes S. Wei http://www.tectonics.caltech.edu/slip_history/2014_chile/index.html

Earthquake of greater intensity between the regions of Atacama and La Araucania ONEMI http://www.onemi.cl/informate/sismo-de-mayor-intensidad-en-las-regiones-de-metropolitana-y-maule/

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Short summary
One of the quickest means of tsunami evacuation is transfer to higher ground soon after strong and long ground shaking. Ground shaking itself is a good initiator of the evacuation from disastrous tsunami. Longer-period seismic waves are considered to be more correlated with the earthquake magnitude. We investigated the possibility of applying this to tsunami hazard alarm using single-site ground motion observation.
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