STRAIN ANALYSIS IN SULAWESI BASED ON GPS DATA 2010-2022
Indonesia’s tectonic indicate high activity and caused deformation in the crust. Sulawesi is one of the largest islands that located in eastern Indonesia and has a complex geological structure. This is due to Sulawesi located at triple junction area. This research aims to calculate and analyze st...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/85448 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Indonesia’s tectonic indicate high activity and caused deformation in the crust.
Sulawesi is one of the largest islands that located in eastern Indonesia and has a
complex geological structure. This is due to Sulawesi located at triple junction
area. This research aims to calculate and analyze strain rates using daily
deformation velocity data from GPS data. The data used comes from 54 GPS
stations spread across Sulawesi. This data has been converted into daily solutions
for each GPS station point owned by the Geospatial Information Agency (BIG). The
average movement of Sulawesi is towards the northwest. The amount of settlement
in southern Sulawesi varies between 1.1 cm/year to 3.61 cm/year. Central Sulawesi
has large variations ranging from 1.1 cm/year to 4.5 cm/year and Southeast
Sulawesi has 0.66 cm/year to 2.08 cm/year. The southern part of Sulawesi has 0.15
cm/year to 1.88 cm/year. The maximum strain rate for Sulawesi Island is 42.5
microstrain/year and the minimum strain rate is -26.84 microstrain/year. The
dilatation rate of Sulawesi Island shows that there are areas experiencing large
compression < -3 microstrain/year. The shear strain rate value is large, namely >
4 microstrain/year |
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