Study of the Last Volcanic Activity on Historical Records on Jeju Island, Korea

A new interpretation of historical volcanic records on Jeju Island suggests that two eruptions documented in 1002 and 1007 CE may have originated from a single monogenetic volcano, challenging previous assumptions about the timing and nature of these events. Radiocarbon and optically stimulated luminescence (OSL) dating of three young volcanoes revealed their ages as <3.8 ka for Songaksan, >4.5 ka for Biyangdo, and <6–7 ka for Ilchulbong, with Songaksan identified as the most likely candidate for the historically recorded eruption due to its phreatomagmatic and magmatic activity. The study also highlights potential discrepancies between actual eruption timelines and ancient records, influenced by geopolitical dynamics and cultural contexts of the Goryeo Dynasty and Tamna Kingdom.

Ahn, Ung San. (2016). Study of the Last Volcanic Activity on Historical Records on Jeju Island, Korea. The Journal of the Petrological Society of Korea, 25(1), 69–83. https://doi.org/10.7854/JPSK.2016.25.1.69