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Introduction

A tsunami also known as a seismic sea wave is a series of waves in a body of water caused by the displacement of a large volume of water. With this toolbox one can computes the Computes water level initial displacement induced by an earthquake. “Earthquake Parametrs” and data on the “Fault Area” have to be defined by the user.
“Compute Tsunami” will generate a “*.ini” file (initial tsunami wave) for Delft3D.

Usage of the toolbox

The Tsunami Toolbox makes it possible to draw a fault line and computes the resulting tsunami with 3 steps.

1. Determine the earthquake
   1. Draw a fault line
      1. Determine the parameters of the earthquake like for example the depth
      2. Click on the map to determine where the earthquake takes place (see first Figure)
   2. Load tsunami from a *xml file. This is basically a list of points which decribes the earthquake.
2. Computes the tsunami (water level initial displacement induced by an earthquake). This can takes some time and will result in an extra figure representing the water level displacement. (see second Figure)
3. Run the Delft3D-FLOW simulation

An example

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Figure: Fault line as determined with Delft Dashboard for the coast of Japan

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Figure: Resulting water level displacement as a result of the earthquake as calculated with Delft Dashboard for the coast of Japan