Shortcut Faults and Lateral Spreading Activated in a Pull-Apart Basin by the 2018 Palu Earthquake, Central Sulawesi, Indonesia
نویسندگان
چکیده
Our understanding of pull-apart basins and their fault systems has been enhanced by analog experiments simulations. However, there scarce interest to compare the faults that bound with surface ruptures during earthquakes. In this study, we investigated effects a 2018 earthquake (Mw 7.5) on basin in Palu–Koro system, Sulawesi Island, Indonesia, using geomorphic observations digital elevation models optical correlation pre- post-earthquake satellite images. A comparison active traces determined geomorphology locations from shows some boundary are inactive faulting shifted basin-shortcut relay ramps. We also report evidence lateral spreading, which alluvial fan materials moved around end fan. These phenomena may provide insights for anticipating location future basins.
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2021
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs13152939