Cimandiri Fault Identification Using Earthquake Tomography Double-Difference Method

R. G. Simanjorang, M. S. Rosid, A. S. Sembiring, Daryono, N. Heryandoko

Research output: Contribution to journalConference articlepeer-review


Cimandiri Fault is one of major faults in West Java, which has a considerable potential hazard to the surrounding populated area. Therefore, it's important to have a better understanding about the fault in order to improve disaster mitigation effort in Indonesia. This study is done to identify the Cimandiri Fault based on tomography earthquake data. The recorded data of 290 events were acquired from 15 BMKG seismograph stations located in the vicinity of study area. All events have a total of 2,895 phases consisted of 2,072 P-wave phases and 823 S-wave phases. The method used in this study to produce images beneath the surface of Western Java is double-difference travel time seismic tomography. Inversions were performed using the TomoDD algorithm to image seismic velocity models with horizontal variations from Banten Province and West Java. The final results of this study show the existence of Cimandiri Fault located in the southern part of West Java and extends with direction of North East-South West through Pelabuhan Ratu until it reaches the ocean in the south of Banten.

Original languageEnglish
Article number012044
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 27 May 2020
EventSoedirman''s International Conference on Mathematics and Applied Sciences 2019, SICoMAS 2019 - Purwokerto, Indonesia
Duration: 23 Oct 201924 Oct 2019


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