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Kueishantao Island, whose summit is 401 m above sea level, is the southernmost of five small volcanic islands off the NE coast of Taiwan. Kueishantao, also known as Guieshan Island, consists of andesitic lava flows and volcaniclastic material. It is the southwesternmost volcano along the axis of the Okinawa Trough back-arc basin that extends to the NE from Taiwan to Unzen volcano in Kyushu. The SW tip of the Okinawa Trough extends past Kueishantao onto the Ilao Plain on the island of Taiwan. The island is known as "Turtle Mountain Island" due to its profile as seen from some points on the coast of Taiwan. Historical accounts during the time of King Qianlong of the Qing Dynasty (1775-1795 CE) noted the Guieshan mountain split open with a blood-red lava flow. Kueishantao displays vigorous active submarine fumaroles and solfataras that discolor seawater over wide areas.
Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|1785 ± 10 years||Unknown||Confirmed||0||Historical Observations|
This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.
|Guieshan | Guishan|
|Vigorous submarine fumarolic activity discolors water over broad areas around Kueishantao Island (also known as Gueishan Island) off the eastern coast of Taiwan. The island is known as "Turtle Mountain Island" due to its profile as seen from some points on the coast of Taiwan. Historical accounts during the early years of King Qianlong of the Qing Dynasty (1775-1795 AD) noted that the Guieshan mountain split open with a blood-red lava flow.
Copyrighted photo, 2006 (Tourism Bureau, Republic of China (Taiwan)).
The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.
Chen C H, 1981. Petrochemical aspects and tectonic implication of Pleistocene andesitic rocks of northern Taiwan and off-shore islets. IAVCEI 1981 Tokyo Mtg Abs, p 50-51.
Chen C-H, Lee T, Shieh Y-N, Chen C-H, Hsu W-Y, 1995. Magmatism at the onset of back-arc basin spreading in the Okinawa Trough. J Volc Geotherm Res, 69: 313-322.
Ho C S, 1988. An introduction to the geology of Taiwan; explanatory text of the geologic map of Taiwan. Taipei: Central Geol Surv, Ministry Economic Affairs, 192 p.
IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..
Katsui Y (ed), 1971. List of the World Active Volcanoes. Volc Soc Japan draft ms, (limited circulation), 160 p.
Liu J, Taniguchi H, 2001. Active volcanoes in China. Tohoku Asian Studies, 6: 173-189.