9:15 AM - 9:30 AM
[MIS22-02] The 1707 eruption as seen from the northern foot of Fuji volcano
Keywords:Fuji volcano, 1707 eruption, Historical documents, Atmospheric optical phenomenon
Violent explosive eruption occurred from16 Dec. 1707 at the southeastern flank of Fuji volcano, caused minor damage to health as far away as Edo (Tokyo), shown in many historical documents and drawings. Although there are descriptions about casualties in several documents, no conclusive evidence has been obtained. Therefore, it can be clarified in more detail by comparing the results of geological survey with historical documents of the 1707 eruptions. This study reports new findings on the 1707 eruption.
The Fuji-san funkanozu, a Kobayashi Kanemitsu’s collection kept in the Mt. Fuji World Heritage Centre, Shizuoka is the front of the sheet contains drawings divided into four panels, while the reverse side contains texts related to the 1707 earthquake and eruption. The drawings suggest that it was drawn at the northern foot of Fuji volcano (around Fuji-Yoshida city), and it may have been compiled based on the records of Fuji Hongu Sengen Taisha. Notably, the first and fourth drawings described about atmospheric optical phenomenon. Geological investigations into the formation process of Mt. Hoei suggest that copper, a volatile component, degassed and separated during the eruption of Ho-III to IV. Although the 1707 eruption has mainly focused on damage caused by fallout volcanic ejecta, studies of melt inclusions have estimated that over 1 million tons of Sulphur were released. It is possible that the sulphuric acid aerosols into the upper atmosphere and refracted sunlight, which could have been witnessed from the northern foot of Fuji volcano.
The Fuji-san funkanozu, a Kobayashi Kanemitsu’s collection kept in the Mt. Fuji World Heritage Centre, Shizuoka is the front of the sheet contains drawings divided into four panels, while the reverse side contains texts related to the 1707 earthquake and eruption. The drawings suggest that it was drawn at the northern foot of Fuji volcano (around Fuji-Yoshida city), and it may have been compiled based on the records of Fuji Hongu Sengen Taisha. Notably, the first and fourth drawings described about atmospheric optical phenomenon. Geological investigations into the formation process of Mt. Hoei suggest that copper, a volatile component, degassed and separated during the eruption of Ho-III to IV. Although the 1707 eruption has mainly focused on damage caused by fallout volcanic ejecta, studies of melt inclusions have estimated that over 1 million tons of Sulphur were released. It is possible that the sulphuric acid aerosols into the upper atmosphere and refracted sunlight, which could have been witnessed from the northern foot of Fuji volcano.