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Updated: Feb 5, 2026
07:58
Data Processing Methods for 3D Seismic Imaging of Subsurface Volcanoes: Applications to the Tarim Flood Basalt
Published on: August 7, 2017
9.9K
Seismic imaging and petrology explain highly explosive eruptions of Merapi Volcano, Indonesia
S Widiyantoro1,2, M Ramdhan3,4, J-P Métaxian5,6
1Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Bandung Institute of Technology, Bandung, 40132, Indonesia. sriwid@geoph.itb.ac.id.
Scientific Reports
|September 14, 2018
Summary
Seismic imaging reveals Merapi Volcano's magma plumbing system, detailing fluid percolation zones and large magma reservoirs from the mantle to the summit. This advance aids in forecasting and mitigating future eruption hazards.
Area of Science:
- Geophysics
- Volcanology
- Seismology
Background:
- Merapi Volcano possesses a complex and active magma plumbing system.
- Understanding magma pathways is crucial for volcanic hazard assessment.
Purpose of the Study:
- To characterize the spatial and volumetric details of Merapi Volcano's magma plumbing system.
- To provide high-resolution seismic tomography data for improved eruption forecasting.
Main Methods:
- Utilized P- and S-wave arrival time data from the dense DOMERAPI seismic network.
- Applied seismic tomography to analyze subsurface structures.
- Integrated petrological study results.
Main Results:
- Identified a high Vp/Vs structure from ≥20 km below mean sea level (MSL) to the summit.
- Detected a shallow fluid percolation zone beneath the summit.
- Mapped a main magma reservoir (10-20 km below MSL) and a deep reservoir at MOHO depth.
- Revealed an extensive, subvertical fluid-magma-transfer zone.
Conclusions:
- The study elucidates Merapi's magma plumbing, from deep mantle sources to shallow summit processes.
- High-resolution seismic constraints enhance the ability to forecast and mitigate Merapi's eruption hazards.
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