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Kueishantao Volcano | John Seach
Taiwan
24.85 N, 121.92 E
summit elevation 401 m
Stratovolcano
Kueishantao (Guishan Island) is an adnesitic Volcano located offshore from Ilan plain in NE Taiwan. Kueishantao is the last volcanic center at the southernmost end of the Okinawa Trough’s spreading axis. No basaltic rocks have been found on Kueishantao.
Kueishantao is located on a N-S-trending extensional structure. A seismic zone is present shallower than 15 km. There is a low-velocity zone directly beneath Kueishantao, which may define an area of magma. A strong continental signature in Kueishantao volcanic rocks was caused by crustal contamination.
1795 Eruption
The volcano possibly erupted in 1795 according to historical accounts from Qing Dynasty.
Further reading
Konstantinou, K.I., Pan, C.Y. and Lin, C.H., 2013. Microearthquake activity around Kueishantao island, offshore northeastern Taiwan: Insights into the volcano–tectonic interactions at the tip of the southern Okinawa Trough. Tectonophysics, 593, pp.20-32.
Chiu, C.L., Sheng-Rong, S., Yu-Chung, H. and Chi-Xuan, C., 2010. Volcanic characteristics of Kueishantao in northeast Taiwan and their implications. TAO: Terrestrial, Atmospheric and Oceanic Sciences, 21(3), p.5.
Kueishantao Volcano Eruptions
1795