zaenudin, ahmad and Rasimeng, Syamsurijal and Sumanjaya, Erlan and Fajriyanto, Fajriyanto and Wibowo, Adhi (2022) Relocated Seismicity in Bakauheni, Lampung and Its Implication with Local Fault Activity. In: THE 4th INTERNATIONAL SEMINAR ON SCIENCES AND TECHNOLOGY 2022, 2-3 November 2022, Faculty of Mathematics and Natural Science, University of Tadulako. (In Press)

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Abstract

In the last decade, Bakauheni, Lampung has been shocked by sequences of small magnitude earthquakes which is probably resulted by complex faulting around Bakauheni region. To determine the source of the earthquake, we present hypocenter relocation using data from the Agency for Meteorology, Climatology and Geophysics (BMKG) station network of Indonesia for the period 2009-2022. The relocations were performed using double-difference method to improving the result. The results obtained amounted to five events where the depth of hypocenter ranges from 2-195 km. Earthquake with a depth less than 60 km are caused by local fault activity and the depth of more than 60 km are probably caused by slab subduction activity between Eurasian plate and Indo-Australian plate. Based on our result of relocation shows that there is two event: on 23 March 2020 located at 5.828243 E with a depth around 17.3 km, which is indicated to Peterjajar Fault. Wheras on 12 February 2020 located at 5.873412 0 S and 105.686012 0 E with depth 2 km, which is indicated to Fault behind Bakauheni Harbour. Based on this result, we suggested that Peterjajar fault and other local fault activities sourrounding Bahauheni are active fault which is resulted shallow crust earthquake and then it is becomes dangerous earthquakes for harbour infrastructure

Item Type:	Conference or Workshop Item (Paper)
Subjects:	G Geography. Anthropology. Recreation > GA Mathematical geography. Cartography Q Science > Q Science (General)
Divisions:	Fakultas Teknik (FT) > Prodi Teknik Geodesi
Depositing User:	FAJRIYANTO
Date Deposited:	18 Apr 2023 01:02
Last Modified:	18 Apr 2023 01:02
URI:	http://repository.lppm.unila.ac.id/id/eprint/50495

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