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Ridwan Kusnandar
Udayana University
Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology Physics

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Penentuan Jenis Sesar pada Gempabumi Lombok Tanggal 1 Juli sampai 31 Desember 2018 Menggunakan Metode Mekanisme Fokus Ni Nyoman Susi Kesuma Wardani; Komang Ngurah Suarbawa; Ridwan Kusnandar
BULETIN FISIKA Vol 22 No 2 (2021): BULETIN FISIKA August Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2021.v22.i02.p06

Abstract

Research has been conducted on determining the type of fault in Lombok earthquake on July 1 to December 31 2018 using the focal mechanism method. The focal mechanism is a method of reviewing fault parameters that include strike, dip and rake based on the initial movement direction of P wave recorded by the station, which then projected into a focal ball. There are 246 stations are used in several countries. There were 139 earthquakes with M?4.0 on July 1 to December 31 2018, at coordinates 7.0? S-9.0? S and 115.5? E-117.5? E. The result of fault field parameters is at nodal 1 strike=52?-149?, dip=6?-75?, rake=39?-143? and at nodal 2, strike=233?-313?, dip=18?-84?, rake=58?-119?, then projected into focus ball. Based on these results shows that earthquakes occur as a result of thrust fault movement.
Co-Authors Komang Ngurah Suarbawa Ni Nyoman Susi Kesuma Wardani