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

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Cited articles

Carvajal, M., Sepúlveda, I., Gubler, A., and Garreaud, R.: Worldwide signature of the 2022 Tonga volcanic tsunami, Geophys. Res. Lett., 49, e2022GL098153, https://doi.org/10.1029/2022GL098153, 2022. 
Chang, C.-J.: Documenting life in the era of climate change: Huang Hsin-yao's Nimbus and Taivalu, Asian Cinema, 30, 235–254, https://doi.org/10.1386/ac_00006_1, 2019. 
Chang, Y., Chu, K.-W., and Chuang, L. Z.-H.: Sustainable coastal zone planning based on historical coastline changes: A model from case study in Tainan, Taiwan, Landsc. Urban Plan., 174, 24–32, https://doi.org/10.1016/j.landurbplan.2018.02.012, 2018. 
Chen, G.-Y.: Taiwan Interview Catalogue, http://tcss.ith.sinica.edu.tw/cgi-bin/gs32/gsweb.cgi/ccd=WrA2D_/ebookviewer?dbid=EB0000000055&db=ebook (last access: 7 October 2021), 1830. 
Chen, S.-C., Hsu, S.-K., Wang, Y., Chung, S.-H., Chen, P.-C., Tsai, C.-H., Lie, C.-S., Lin, H.-S., and Lee, Y.-W.: Distribution and characters of the mud diapirs and mud volcanoes off southwest Taiwan. J. Asian Earth Sci., 92, 201–214, https://doi.org/10.1016/j.jseaes.2013.10.009, 2014. 
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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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