Modeling the Tsunami of 11 April 2012 in Sumatra
IRIDeS, Tohoku University
Useful Information
General
- CNN
- Reuters
Emergency Response
- ReliefWeb
Seismology
- USGS
Tsunami Observation
- WCATWC web site
Tsunami Model Description
- Governing Equation : Linear Shallow Water Equations (Far-field model)
- Numerical Scheme : Leap-frog Finite Difference Method (TUNAMI-CODE of Tohoku University)
- Spatial Grid Size : 1 arc-min. (Far-field model)
- Bathymetry Data : GEBCO
Tsunami Source Model
Case 1
- Mw = 8.6
- Fault Length / Width : 210 km / 105 km
- Dislocation : 4.9 m
- Source Mechanism (Strike, Dip, Rake) = (108, 87, 170) Reference :USGS
- Depth : 30 km
Case 2
- Mw = 8.6
- Fault Length / Width : 124 km / 124 km
- Dislocation : 7 m
- Source Mechanism (Strike, Dip, Rake) = (199, 80, 3) Reference :USGS
- Depth : 30 km
Case 3
- Mw = 8.6
- Fault Length / Width : 210 km / 105 km
- Dislocation : 4.9 m
- Source Mechanism (Strike, Dip, Rake) = 289, 89, 154) Reference :CMT
- Depth : 40 km
Seismic Deformation Model Result
For original resolution, click the image below.
Case 1
Case 2
Case 3
Tsunami Model Result
Modeled tsunami height , click the image below
Case 1
Case 2
Case 3
Tsunami Waveforms
Tidal station off the western coast of Sumatra, click the image below.
Case 1
Case 2
Case 3
Tsunami Propagation Animation
The color bar of all models is following.
Click to play
by:
K. Imai, E. Mas, M. Abdul, R. Prasanthi, S. Shimamura and Y. Suda
(Tsunami Engineering, Hazard and Risk Evaluation Research Division)
D. Sugawara,
(Science and technology for low-frequency Risk Evaluation, Hazard and
Risk Evaluation Research Division)
A. Suppasri, Y. Abe and Y. Fukutani
(Earthquake induced Tsunami Risk Evaluation (Tokio Marine), Endowed
Research Division)