Tsunami hazard from the subduction megathrust of the South China Sea: Part I. Source characterization and the resulting tsunami

Kusnowidjaja Megawati, Felicia Shaw, Kerry Sieh, Zhenhua Huang, Tso Ren Wu, Yunung Lin, Soon Keat Tan, Tso Chien Pan

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87 Scopus citations

Abstract

The subduction megathrust under the Manila Trench has been accumulating strain over a period of 440 years or more, and could be the source for a giant earthquake of Mw ∼ 9. We present a plausible earthquake rupture model constructed from seismic and geodetic data, together with hydrodynamic simulations of the potential tsunami with COMCOT (COrnell Multi-grid COupled Tsunami model). Results indicate that this megathrust poses a risk of devastating tsunami for the Philippines, southern China, Vietnam and other population centers bordering the South China Sea.

Original languageEnglish
Pages (from-to)13-20
Number of pages8
JournalJournal of Asian Earth Sciences
Volume36
Issue number1
DOIs
StatePublished - 4 Sep 2009

Keywords

  • Manila trench
  • Rupture model
  • Singapore
  • South China Sea megathrust
  • Southeast Asia
  • Tsunami

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