Geoinformatics Unit

Preliminary Damage Mapping Following the M7.5 Earthquake in Indonesia on September 28, 2018

October 4, 2018

On September 28, 2018, an M7.5 earthquake occurred in Sulawesi, Western Indonesia, the ground shaking and subsequent tsunami caused severe damage and casualties. The Geoinformatics Unit from RIKEN Center for Advanced Intelligence Project and the International Research Institute of Disaster Science conducted a preliminary damage mapping using satellite remote sensing imagery.

Crisis Response Map

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Red (): Destroyed, Orange (): Damaged, Yellow (): Possibly Damaged. Google Chrome and Mozilla Firefox are recommended for displaying the web mapping.

Further Information

IRIDeS web mapping LINK
Analysis report LINK

Data Sources

  • Pre-event image: Sentinel-2 (c) ESA (2018) (acquired on 17/09/2018), Sentinel-1 (c) ESA (2018) (acquired on 07/06/2018)
  • Post-event: Sentinel-2 (c) ESA (2018) (acquired on 02/10/2018), PlanetScope (c) Planet Labs Inc. (2018) (acquired on 01/10/2018), ALOS-2 (c) JAXA (2018) (acquired on 01/10/2018)
  • Building vector layer: OpenStreetMap (c) OpenStreetMap contributors
  • Digital Elevation Model: SRTM (30 m) (NASA/USGS)
  • Building damage annotation: Copernicus Emergency Management Service - Mapping (EMSR317: Earthquake in Indonesia) (c) European Union


The information contained in the map is for general information purposes only. The accuracy of building damage mapping is not assessed yet. The information is provided by Geoinformatics Unit and while we endeavor to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the map or the information, products, services, or related graphics contained on it for any purpose. Any reliance you place on such information is therefore strictly at your own risk.


Preliminary damage mapping in Palu, Indonesia.