Earthquake Relocation Using the Double Difference Method in The Banten Area Case Study
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Abstract
Banten Province is part of a konvergent movement between the Indo-Australian Oceanic Plate and the Eurasian (Europe-Asia) continental plate. The Indo-Australian Ocean Plate is moving north and colliding with the Eurasian Continental Plate. The earthquake on January 14, 2022 in Banten with a magnitude of 5.7 and a depth of 72 km was identified as a subduction lineation earthquake. Earthquake relocation is required to obtain accurate hypocenter results for tectonic conditions analysis. The hypocenter relocation method used in this study is the double difference method, which takes into account the travel time of the earthquake pair to the station. To obtain the best relocation results, the damping value test and several velocity models are also used. The best results were obtained. The best results were obtained using the MAXDIST 300, MAXSEP 50, and damping 25 parameters with the AK-135 speed model.
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