3-D Shear Wave Velocity (Vs) & Crustal Interface (Sediment Basement & Moho) Models of Borneo, Makassar Strait, & Sulawesi Region
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Heryandoko, Nova1
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Nugraha, Andri Dian2
- Zulfakriza, Zulfakriza3
- Rosalia, Shindy3
- Yudistira, Tedi3
- Rohadi, Supriyanto4
- Daryono, Daryono4
- Supendi, Pepen4
- Nurpujiono, Nurpujiono4
- Yusuf, Fadly4
- Fauzi, Fauzi4
- Lesmana, Aditya4
- Mirojul Husni, Yayan1
- Setyo Prayitno, Bambang4
- Triyono, Rahmat4
- Prayitno Adi, Suko4
- Karnawati, Dwikorita4
- Greenfield, Tim5
- Rawlinson, Nicholas5
- Widiyantoro, Sri6
- 1. Geophysical Engineering Study Program, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, Indonesia
- 2. Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, Indonesia
- 3. Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, Indonesiaeophysics Research Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, Indonesia
- 4. Meteorological Climatological and Geophysical Agency (BMKG), Jakarta, Indonesia
- 5. Bullard Laboratories, University of Cambridge, Cambridge, UK
- 6. Faculty of Engineering, Maranatha Christian University, Bandung, Indonesia
Description
3-D Shear Wave Velocity (Vs) & Crustal Interface (Sediment Basement & Moho) Models of Borneo, Makassar Strait and Sulawesi region obtained from group velocity tomography. Group velocity is retrieved from dispersion analysis of Rayleigh waves extracted from the ambient noise field by cross-correlating long-term recordings from 108 seismic stations over a period of 8 months. A 3-D shear wave velocity model then are produced via a two-stage process in which group velocity maps are computed across a range of periods and then sampled over a dense grid of points to produce pseudo-dispersion curves; these dispersion curves are then separately inverted for 1-D shear wave velocity (Vs), with the resultant models combined and interpolated to form a 3-D model.