Location and Pressures Change Prediction of Bromo Volcano Magma Chamber Using Inversion Scheme

5th International Conference on Theoretical and Applied Physics 2015

Kumalasari, Ratih^1 ; Srigutomo, Wahyu^1 ; Djamal, Mitra^1

Earth Physics and Complex System, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, J1. Ganesa 10, Bandung

40132, Indonesia^1

关键词: Active volcanoes;    Change prediction;    Inversion scheme;    Levenberg-Marquardt;    Physical parameters;    Pressure change;    Surface deformation;    Volume change;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/846/1/012002/pdf
DOI  :  10.1088/1742-6596/846/1/012002

来源: IOP

【 摘 要 】

Bromo volcano is one of active volcanoes in Indonesia. It has erupted at least 50 times since 1775 and has been monitored by Global Positioning System (GPS) since 1989. We applied the Levenberg-Marquardt inversion scheme to estimate the physical parameters contributing to the surface deformation. Physical parameters obtained by the inversion scheme such as magma chamber location and volume change are useful in monitoring and predicting the activity of Bromo volcano. From our calculation it is revealed that the depth of the magma chamber d = 6307.6 m, radius of magma chamber α = 1098.6 m and pressure change ΔP ≈ 1.0 MPa.