Stand-alone tsunami alarm equipment

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

doi:https://doi.org/10.5194/nhess-17-685-2017

Articles | Volume 17, issue 5

https://doi.org/10.5194/nhess-17-685-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/nhess-17-685-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 5

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/

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.