Detection of the Post-Earthquake Damage in Mamuju Regency in January 2021 Using Sentinel-1 Satellite Imagery

Authors

  • Zulfha Diya Nur Ardzilla Geomatics Technology, Politeknik Pertanian Negeri Samarinda
  • Nia Kurniadin Geomatics Technology, Politeknik Pertanian Negeri Samarinda https://orcid.org/0000-0002-7748-378X
  • F. V. Astrolabe Sian Prasetya Geomatics Technology, Politeknik Pertanian Negeri Samarinda
  • Romansah Wumu Geomatics Technology, Politeknik Pertanian Negeri Samarinda
  • Dawamul Arifin Geomatics Technology, Politeknik Pertanian Negeri Samarinda
  • Shabri Indra Suryalfihra Geomatics Technology, Politeknik Pertanian Negeri Samarinda

DOI:

https://doi.org/10.51967/tanesa.v24i1.2495

Keywords:

Change Detection, Earthquake, Mamuju Regency, Sentinel-1, Threshold Classification

Abstract

Friday, January 15 2021 at 02:28:21 Local Time, a tectonic earthquake with a magnitude of 6.2 occurred in Mamuju Regency. The epicenter of the earthquake was on land and at 38 km in depth, 6 km to the northeast of Majene, West Sulawesi Province. This earthquake has damaged buildings such as the West Sulawesi Governor’s Office, the Mitra Manakara Hospital, and landslides at several points on Mamuju – Majene highway. The purpose of this research is to determine the post-earthquake damage that occurred in Mamuju Regency and to find out the area that was detected because of the earthquake. By using Sentinel-1 satellite image data and the change detection method from two Sentinel-1 SAR images, ESA SNAP software is used for data processing by using a threshold classification on the images before and after the earthquake, then converting Raster to Vector, Clip according to the boundaries of Mamuju Regency and Layouts using ArcGIS software. The results of this study are the detection of the post-earthquake damage that occurred in Mamuju Regency of 100.64 km2 (14.78%) total area of damage detected. This research also obtained post-earthquake damage detection maps.

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Buletin Poltanesa Multidisiplin Jurnal

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Published

2023-06-25

How to Cite

Ardzilla, Z. D. N., Kurniadin, N., Prasetya, F. V. A. S., Wumu, R., Arifin, D., & Suryalfihra, S. I. (2023). Detection of the Post-Earthquake Damage in Mamuju Regency in January 2021 Using Sentinel-1 Satellite Imagery. Buletin Poltanesa, 24(1), 100–108. https://doi.org/10.51967/tanesa.v24i1.2495

Issue

Vol. 24 No. 1 (2023): June 2023

Section

Geomatics Technology

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