Articles | Volume 22, issue 8
https://doi.org/10.5194/nhess-22-2517-2022
https://doi.org/10.5194/nhess-22-2517-2022
Research article
 | 
05 Aug 2022
Research article |  | 05 Aug 2022

Historical tsunamis of Taiwan in the 18th century: the 1781 Jiateng Harbor flooding and 1782 tsunami event

Tien-Chi Liu, Tso-Ren Wu, and Shu-Kun Hsu

Data sets

bathymetry data of ETOPO1 NOAA National Geophysical Data Center https://www.ngdc.noaa.gov/mgg/global/

bathymetric data of Taiwan with 200 m Ocean Data Bank https://www.odb.ntu.edu.tw/bathy/

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Short summary
The findings from historical reports and numerical studies suggest the 1781 Jiateng Harbor flooding and the 1782 tsunami should be two independent incidents. Local tsunamis generated in southwest Taiwan could be responsible for the 1781 flooding, while the existence of the 1782 tsunami remains doubtful. With the documents of a storm event on 22 May 1782, the possibility that the significant water level of the 1782 tsunami was caused by storm surges or multiple hazards could not be ignored.
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