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Articles | Volume 17, issue 3
Articles | Volume 17, issue 3
https://doi.org/10.5194/se-17-453-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/se-17-453-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 3
Research article
 | 
12 Mar 2026
Research article |  | 12 Mar 2026

Offshore crustal thickness variation along the Palu–Koro strike–slip fault in the Sulawesi region from OBS receiver function analysis

Tingwei Yang, ChuanChuan Lü, Tianyao Hao, Nicholas Rawlinson, Tao Xu, Pepen Supendi, Sri Widiyantoro, Muhammad Taufiq Rafie, Alfian Alfian, and David Prambudi Sahara

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Short summary
We studied the crust beneath Celebes Sea and Makassar Strait in East Indonesia to better understand how the region formed and moves today. Using ocean-bottom and land-based seismometers, we discovered significant differences in crust thickness and unusual underground structures associated with major faults. These findings help explain past tectonic activity and may improve understanding of earthquake hazards in the area.
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Special issue
Seismic imaging from the lithosphere to the near surface