The Scenario Reconstruction of the Historical Tsunami Events on the Southwest Coasts of Taiwan (Ii)

Project Details

Description

The southwest coast of Taiwan is not only densely populated, but is the place with the most historicaltsunami records as well. Unfortunately, in Taiwan, no scientific researches are constructed so far to perform asystematically analysis on this area. In October 2015, a scientific paper, titled "What caused the mysteriouseighteenth century tsunami that struck the southwest Taiwan coast?” by Nanyang Technological University,Singapore, was published on the Journal of Geophysical Research Letters. In that paper, a Chinese historicaldocument, “Taiwan Interview Catalogue,” and two other historical accounts in English and in French werereferred. The study concluded that the large tsunami depicted in the above-mentioned documents was mostlikely generated by submarine mass failure on the Kaoping slope. This paper also warns that a catastrophewill be expected if a tsunami with a similar scale attacks this area again.This research article stirred heated discussions in Taiwan. The arguable points might mislead and causethe public to panic. However, this article did expose us to the fact that so little has been done to scientificallyunveil historical tsunami events in Taiwan. Hence, in this project, we will continue the research result yieldfrom the previous project and gather more research power from the fields of tsunami, geological, andseismology, to investigate and reconstruct the possible tsunami scenarios along the southwest coast of Taiwan.In our previous project, we did the tsunami impact intensity analysis (IIA) on the tsunami events andsuccessfully applied it to analyzing near-source tsunami region.In this project, a more rapid Tsunami Volume Flux Method (VFM) will be developed to identify, withhigher efficiency, the potential tsunami sources in a large scale. Four particular tsunami events, including the1781 Kaohsiung- Pingtung Tsunami Event, 1782 Tainan Tsunami Event, 1894 Tonggang Tsunami Event and 1661 Luermen Water Level Rise Event, will be targeted to analyze their event sources and COMCOT will beemployed to reconstruct the event scenarios. Among all four cases, we have made a good progress on 1661Luermen Water Level Rise Event and presented the result in an oral format at both EGU and AGU in 2016. Tstudy of 1661 Luermen Water Level Rise Event discussed the earthquake-generated tsunami and developed abrand new Discontinuous Bi-viscous Model (DBM)in a complete version for the first time in this field tosimulate a mudslide movement under the sea. This stunning development has received significant academicapproval. Therefore, DBM will be implemented in this project to better study the landslide-generatedtsunamis on the southwest shelf slop of Taiwan and the threats they pose to the southwest coast of Taiwan.
StatusFinished
Effective start/end date1/08/1731/10/18

UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):

  • SDG 11 - Sustainable Cities and Communities
  • SDG 14 - Life Below Water
  • SDG 17 - Partnerships for the Goals

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