Ishak, Umi Hazirah
(2010)
Numerical Model For Tsunami Propagation Due To A Time Dependent Source Along Peninsular Malaysia And Southern Thailand.
Masters thesis, Universiti Sains Malaysia.
Abstract
The event of the 26th December 2004 Sumatra-Andaman Earthquake was very
profound in its impact since it generated a widespread tsunami throughout the Indian
Ocean rim countries. The west coast of Peninsular Malaysia and the coast of southern
Thailand were also attacked by the massive tsunami waves thus proving that these two
affected regions are also in a vulnerable position for tsunami surge due to a permanent
source in Sumatra, Indonesia.
Ever since the devastating event, lots of studies and researches had been done by
various researchers from all over the world in order to better understand the phenomenon.
Kowalik et al. (2005) and Roy and Ismail (2005). These researchers considered an
instantaneous sea surface uplift and subsidence along the whole source zone which was
caused by an abrupt slip at the India / Burma plate interface and that was assigned as the
initial condition. But, the rupture of the sea surface elevation along the fault line spreads
over 1300km long and it propagated for about 8 minutes (Ishii et al., 2005). Ammon et al.
(2005) also indicated that the rupture propagated approximately 1200km of the ruptured
fault length in about 500 seconds. Thus, by considering these facts, the initial disturbance
of the sea surface along the whole source zone is time dependent.
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