SEISMIC RESPONSE IN MUARA BANGKAHULU SUB-DISTRICT, BENGKULU CITY, USING THE CONCEPT OF WAVE PROPAGATION

Rena Misliniyati; Muhammad Farid; Khairul Amri; Lindung Zalbuin Mase; Fepy Supriani

doi:10.21009/jpensil.v13i3.45746

Authors

Rena Misliniyati Universitas Bengkulu
Muhammad Farid Universitas Bengkulu
Khairul Amri Universitas Bengkulu
Lindung Zalbuin Mase Universitas Bengkulu
Fepy Supriani Universitas Bengkulu

DOI:

https://doi.org/10.21009/jpensil.v13i3.45746

Keywords:

Earthquake, Peak Ground Acceleration, Time History of Earthquake Acceleration, Amplification Factor, Acceleration Spectra Response

Abstract

The position of Bengkulu Province, which is flanked by the subduction zone between the Euro-Asian and Indian-Australian plates to the west, and the Sumatra Fault zone to the east, makes Bengkulu City one of the areas prone to earthquake disasters. Muara Bangkahulu District is one of the sub-districts in Bengkulu City. Muara Bangkahulu sub-district is an area that functions as a government centre, trade and service centre, and one of the education centres in Bengkulu City. This study aims to determine the ground response in the Muara Bangkahulu sub-district area during an earthquake. The wave propagation method used in this study is a one-dimensional equivalent of linear and nonlinear modelling that propagates earthquake waves from bedrock to surface. The results of this study are Peak Ground Acceleration (PGA), amplification factor, earthquake acceleration time history, and acceleration spectra response. The results of this analysis will be compared between equivalent linear and nonlinear values. The results of this study can also help us realise and further consider the value of seismic design in the Muara Bangkahulu sub-district area, mainly if a stronger earthquake occurs in the future.

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