# Precise Hypocenter Determination around Palu Koro Fault: A Preliminary Results
> Muhammad Fawzy Ismullah M.

URL kanonis: https://discover.unhas.ac.id/publications/precise-hypocenter-determination-around-palu-koro-fault-a-preliminary-results
Jurnal / Konferensi: Iop Conference Series Earth and Environmental Science
Tahun terbit: 2017
DOI: https://doi.org/10.1088/1755-1315/62/1/012056
ISSN: 17551307
Citations: 7

## Authors
- Muhammad Fawzy Ismullah M.

## Abstract
Sulawesi area is located in complex tectonic pattern. High seismicity activity in the middle of Sulawesi is related to Palu Koro fault (PKF). In this study, we determined precise hypocenter around PKF by applying double-difference method. We attempt to investigate of the seismicity rate, geometry of the fault and distribution of focus depth around PKF. We first re-pick P-and S-wave arrival time of the PKF events to determine the initial hypocenter location using Hypoellipse method through updated 1-D seismic velocity. Later on, we relocated the earthquake event using double-difference method. Our preliminary results show the distribution of relocated events are located around PKF and have smaller residual time than the initial location. We will enhance the hypocenter location through updating of arrival time by applying waveform cross correlation method as input for double-difference relocation.

## Keywords
- Hypocenter
- Seismology
- Induced seismicity
- Geology
- Fault (geology)
- Relocation
- Arrival time
- Tectonics
- Travel time
- Geodesy
- Earthquake location
- Waveform
- Telecommunications
- Computer science
- Engineering
- Transport engineering
- Radar
- Programming language

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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