THE INVESTIGATION OF DEFORMATION SCHEME AFTER THE 2018 SITUBONDO EARTHQUAKE BASED ON GPS DATA FOR 2018 - 2020
Indonesia is located in an active tectonic zone which is associated with plate boundaries associated with megathrust and active faults so that it has a high level of seismicity. This causes a high potential for earthquake disasters in Indonesia. Earthquake research in Indonesia has often been car...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/66900 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Indonesia is located in an active tectonic zone which is associated with plate
boundaries associated with megathrust and active faults so that it has a high level
of seismicity. This causes a high potential for earthquake disasters in Indonesia.
Earthquake research in Indonesia has often been carried out. However, one of the
recent devastating earthquakes, that is the 2018 Situbondo earthquake with a
magnitude of M6.2 has not been well studied. This study investigates the pattern of
deformastion that occurred after the 2018 Stitubondo earthquake. The data used in
this research comes from seven Global Positioning System (GPS) measurement
stations installed and recorded by the Geospatial Information Agency (BIG). The
data processing carried out includes the data preparation stage followed by the
main processing to achieve the objectives of this study. The result of the main
processing is a velocity vector obtained from linear and viscoelastic modeling.
These two results are used to determine the deformation scheme of the Situbondo
region and its surroundings. The results show that the deformation pattern of
Situbondo and its surroundings is dominated by afterslip and megathrust coupling
effects from the subduction zone in the south of Java Island. |
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