Identification of tectonic activity of the Baribis fault revealed by present Sentinel-1 InSAR observation

Interferometric Synthetic Aperture Radar (InSAR) approach has piqued the interest of several academics in recent years due to its ability to monitor surface displacements. The Baribis Fault Monitoring on Java Island has been performed multiple times over the previous decade using various techniques. However, the applicability of the InSAR approach in this fault remains confined chiefly to displacement in the Line of Sight (LOS) direction. We aim to use the InSAR technique and multi-temporal data to assess the tectonic activity of the Baribis Fault every year from 2017 to 2021. The Baribis Fault generally induces uplift in West Java but subsidence in Central Java. According to the findings of our InSAR analysis, the Baribis fault is still active. Although according to the USGS earthquake database, there were no major earthquakes at this location. As a result, continuous monitoring is required in this area in order to anticipate future seismic occurrences.