People and economies in Indonesia have been seriously affected by geological hazards such as earthquakes, tsunamis, volcanic eruptions, and landslides. The Indo-Australian plate penetrates beneath the Eurasian Plate causes the presence of the Indonesian subduction zone. Large earthquakes occurring along the subduction zone could trigger tsunami (e.g. the 2004 mega thrust Indian Ocean earthquake). A part of the subducting slab is melted forming magma and rises up to produce volcanoes. A dextral strike-slip fault was formed due to the oblique motion of the Indo-Australian Plate relative to the trench in order to accommodate the trench parallel component of the convergence. Although the magnitudes of earthquakes along the Sumatran Fault are relatively smaller than those along the subduction zone, earthquakes along the Sumatran Fault could destroy cities or towns as the epicenters are closer to the populated areas.
Therefore, it is significantly important to improve the knowledge of the potentials of geohazards and the ability to reduce the risk of the disasters. The geohazard team of TDMRC of Syiah Kuala University focuses on research topics of earthquakes, tsunamies (sources of tsunamies), landslides, volcanic eruptions, and other related geological hazards. In Aceh, there are several secondary active faults including Batee, Cemtral Aceh, Aceh Segment, and Seulimeuem Faults (Figure 1). We apply various methods including seismology, seismic hazard analysis, reflection seismic, and other near surface techniques as well as GIS. We also conduct risk assessment of possible geological hazards and provide information to stakeholders.
- Active fault observations and analysis using seismological methods, reflection seismic and geological studies along the Sumatran Fault.
- Local and regional earth imaging by using different seismic tomography techniques
- Paleo-tsunami study to understand the history of tsunamis in Aceh
- Seismic hazard analysis by using determination and probabilistic methods focusing on the Sumatran area.
- Geodynamic study by using GPS data in Aceh
- Application near surface geophysical methods to study tsunami sediment, landslides and water quality
- Dr. rer nat Muksin Umar, S.Si., M.Si., M.Phil. (Coordinator)
- Dr. M. Syukri Oesman, S.Si., MT.
- Nazli Ismail, S.Si., M.Si., Ph.D.
- Dr. Irwandi, M.Si.
- Ibnu Rusydi, M.Sc.
- GeoForschungZentrum, GFZ-Potsdam Germany http://www.gfz-potsdam.de/en/section/geophysical-deep-sounding/projects/acehseis/
- School of Physics, USM Malaysia
- Nanyang Technological University (NTU) Singapore
- Ito, T., Gunawan, E., Kimata, F., Tabei, T., Meilano, I., Ohta, Y., Ismail, N., Irwandi, N., and Sugiyanto, D., 2016. Co-seismic offsets due to two earthquakes (M w 6.1) along the Sumatran fault system derived from GNSS measurements. Earth, Planets and Space, 68(1), p.1.
- Kelsey, H.M., Engelhart, S.E., Pilarczyk, J.E., Horton, B.P., Rubin, C.M., Daryono, M.R., Ismail, N., Hawkes, A.D., Bernhardt, C.E. and Cahill, N., 2015. Accommodation space, relative sea level, and the archiving of paleo-earthquakes along subduction zones. Geology, 43(8), pp.675-678.
- Sieh, K., Daly, P., Edwards McKinnon, E., Pilarczyk, J.E., Chiang, H.W., Horton, B., Rubin, C.M., Shen, C.C., Ismail, N., Vane, C.H. and Feener, R.M., 2015. Penultimate predecessors of the 2004 Indian Ocean tsunami in Aceh, Sumatra: Stratigraphic, archeological, and historical evidence. Journal of Geophysical Research: Solid Earth, 120(1), pp.308-325.
- Tabei, T., Kimata, F., Ito, T., Gunawan, E., Tsutsumi, H., Ohta, Y., Yamashina, T., Soeda, Y., Ismail, Irwandi, N. and Sugiyanto, D., 2015. Geodetic and Geomorphic Evaluations of Earthquake Generation Potential of the Northern Sumatran Fault, Indonesia.
- Gunawan, E., Sagiya, T., Ito, T., Kimata, F., Tabei, T., Ohta, Y., Meilano, I., Abidin, H.Z., Irwandi N., and Sugiyanto, D., 2014. A comprehensive model of postseismic deformation of the 2004 Sumatra–Andaman earthquake deduced from GPS observations in northern Sumatra. Journal of Asian Earth Sciences, 88, pp.218-229.
- Ryberg, T., Muksin, U., Bauer, K. (2016). Ambient seismic noise tomography reveals a hidden caldera and its relation to the Tarutung pull-apart basin at the Sumatran Fault Zone, Indonesia, Journal of Volcanology and Geothermal Research, 321, 73-84.
- Muksin, U., Haberland, C., Nukman, M., Bauer, K., Weber, M. (2014). Detailed fault structure of the Tarutung pull-apart basin in Sumatra-Indonesia derived from local earthquake data. Journal of Asian Earth Sciences. 96. 123-131.
- Muksin, U., Haberland, C., Bauer, K., Weber, M. (2013). Three-dimensional upper crustal structure of the geothermal system in Tarutung (North Sumatra, Indonesia) revealed by seismic attenuation tomography. Geophysical Journal International, 195, 2037-2049.
- Bauer, K., Muksin, U., Muñoz, G. (2013). Neuronale Netze und Selbstorganisation: neue Perspektiven bei der Interpretation von Geodaten. System Erde, 3, 1, 70-77.
- Muksin, U., Bauer, K., & Haberland, C. (2013). Seismic Vp and Vp/Vs structure of the geothermal area around Tarutung (North Sumatra, Indonesia) derived from local earthquake tomography. Journal of Volcanology and Geothermal Research, 260, 27-42.
- Affan, M., Syukri, M., Wahyuna, L. and Sofyan, H., 2016. Spatial Statistic Analysis of Earthquakes in Aceh Province Year 1921-2014: Cluster Seismicity. Aceh International Journal of Science and Technology, 5(2).
- Syukri, M. and Akbar, F., 2016. Investigation of Shallow Structures as The Pathway of Oil Seep in The Alue Punoe Village, Bireuen District, Aceh Province, Indonesia. Aceh International Journal of Science and Technology, 5(2).
- Hisham, H., Nordiana, M.M., Saad, R., Syukri, M., Sulaiman, N., Maslinda, U. and Ihsan, S.R., Applying Gravity Method for Mapping Seulimeum Fault System in Krueng Raya, Aceh Besar (Indonesia).
Ibnu Rusydy, Didik Sugiyanto, Lono Satrio, Zulfahriza, Adi Rahman, Imam Munandar, 2016, Geological Aspect of Slope Failure and Mitigation Approach in Bireun – Takengon Main Road, Aceh Province, Indonesia, Aceh International Journal of Science and Technology, Vol. 5, 30-37, 2088-9860.
Katrin Monecke, Caroline K. Templeton, Willi Finger, Brian Houston, Stefan Luthi, Brian G. McAdoo, Ella Meilianda, Joep E.A. Storms, Dirk-Jan Walstra, Razali Amna, Neil Hood, Francis J. Karmanocky III, Nurjanah, Ibnu Rusydy, Sam Unggul Sudrajat, 2015, Beach ridge patterns in West Aceh, Indonesia, and their response to large earthquakes along the northern Sunda trench, Quaternary Science Reviews, 113, 159-170, 0277-3791.