Structural evolution beneath Sakurajima Volcano, Japan, revealed through rounds of controlled seismic experiments
详细信息 查看全文
- 作者：Tomoki Tsutsuia ; tomoki@gipc.akita-u.ac.jp" class="auth_mail" title="E-mail the corresponding author ; Masato Iguchib ; Takeshi Tamegurib ; Haruhisa Nakamichib
- 关键词：Andesitic volcano ; Sakurajima Volcano ; Reflection seismology ; Crustal structure ; Magma movement ; Monitoring volcanic activity
- 刊名：Journal of Volcanology and Geothermal Research
- 出版年：2016
- 出版时间：1 April 2016
- 年：2016
- 卷：315
- 期：Complete
- 页码：1-14
- 全文大小：6882 K
文摘
- •
Repeating seismic experiments reveal variation in seismic reflectivity beneath Sakurajima Volcano, Japan.
- •
Reflectivity variation locates northeastern Sakurajima at the depth of 6.2 km.
- •
Seismic reflectivity decreased by 30% with deflation after 2009.
- •
Change in seismic velocity in the intermediate layer at the reflector can explain the reflectivity variation.
- •
The velocity change can be caused by temperature change through the progress of activity.