BULETIN FISIKA
Vol 22 No 2 (2021): BULETIN FISIKA August Edition

Penentuan Jenis Sesar pada Gempabumi Lombok Tanggal 1 Juli sampai 31 Desember 2018 Menggunakan Metode Mekanisme Fokus

Ni Nyoman Susi Kesuma Wardani (Udayana University)
Komang Ngurah Suarbawa (Udayana University)
Ridwan Kusnandar (Udayana University)

Article Info

Publish Date
22 Jan 2021

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.

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Journal Info
BULETIN FISIKA
Website

Abbrev

buletinfisika

Publisher

Universitas Udayana

Subject

Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology Physics

Description

The Journal aims to promote the theory and application in the field of physics, and to encourage a vigorous dialogue between scholars and researchers all over the world. It presents original research articles, letters as well as review articles, publishes the latest achievements and developments in ...