Understanding of flow liquefaction in Lolu Village based on seismic refraction tomography method

P.P. Andika; A. Tohari; T. Yudistira; E. Soebowo; J. Arifin

doi:10.1088/1755-1315/1173/1/012029

Understanding of flow liquefaction in Lolu Village based on seismic refraction tomography method

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P.P. Andika, A. Tohari, T. Yudistira, E. Soebowo, J. Arifin

2023 IOP Conference Series: Earth and Environmental Science Vol. 1173 Issue 1 Conference paper Cited by 1 SDG 11SDG 16SDG 17

Abstract

A big earthquake may induce flow liquefaction phenomena in lowland areas made up of sedimentary deposits. To understand the factors controlling such a hazard, it is necessary to have knowledge of the sub-surface geological conditions of the liquified area. This paper presents the results of a series of seismic refraction measurements in Lolu Village where flow liquefaction occurred during the 2018 Palu-Donggala earthquake. The results of seismic refraction tomography indicate the presence of horst-graben structures, probably associated with the localized pull-apart basin. The results of this study suggest that the sub-surface geological structure is also a governing factor for the occurrence of flow liquefaction phenomena in an area with a complex fault system. © Published under licence by IOP Publishing Ltd.

Affiliations

Faculty of Mining and Petroleum Engineering, Bandung, Institute of Technology, West Java, Bandung, 40132, Indonesia; Research Center for Geological Disaster, National Research and Innovation Agency, West Java, Bandung, 40135, Indonesia; Department of Geophysical Engineering, Sumatera Institute of Technology, Lampung, 35131, Indonesia

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