Seismic hazard microzonation of Bengkulu City, Indonesia

Abstract It has been known that Bengkulu City (Indonesia) is vulnerable to undergo seismic damage. This study is initiated by measuring horizontal to vertical spectral ratio (H/V) to sites in Bengkulu City using microtremor. The inversion analysis is performed to generate shear wave velocity profile...

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Main Authors: Lindung Zalbuin Mase, Nanang Sugianto, Refrizon
Format: Article
Language:English
Published: SpringerOpen 2021-02-01
Series:Geoenvironmental Disasters
Subjects:
Online Access:https://doi.org/10.1186/s40677-021-00178-y
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author Lindung Zalbuin Mase
Nanang Sugianto
Refrizon
author_facet Lindung Zalbuin Mase
Nanang Sugianto
Refrizon
author_sort Lindung Zalbuin Mase
collection DOAJ
description Abstract It has been known that Bengkulu City (Indonesia) is vulnerable to undergo seismic damage. This study is initiated by measuring horizontal to vertical spectral ratio (H/V) to sites in Bengkulu City using microtremor. The inversion analysis is performed to generate shear wave velocity profile. Hundreds of sites are investigated in this study. The results show that observed H/V is consistent with the theoretical H/V. National Earthquake Hazard Reduction Program code is adopted to classify the site class. The results also exhibit that Bengkulu City is dominated by Site Classes C and D. In general, this study could lead local government to consider seismic hazard mitigation for spatial plan.
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spelling doaj.art-24cac2fcc29d458d9e10c81ecf1d9ca02022-12-21T23:26:00ZengSpringerOpenGeoenvironmental Disasters2197-86702021-02-018111710.1186/s40677-021-00178-ySeismic hazard microzonation of Bengkulu City, IndonesiaLindung Zalbuin Mase0Nanang Sugianto1Refrizon2Department of Civil Engineering, Faculty of Engineering, University of BengkuluDepartment of Geophysics, Faculty of Mathematics and Natural Sciences, University of BengkuluDepartment of Geophysics, Faculty of Mathematics and Natural Sciences, University of BengkuluAbstract It has been known that Bengkulu City (Indonesia) is vulnerable to undergo seismic damage. This study is initiated by measuring horizontal to vertical spectral ratio (H/V) to sites in Bengkulu City using microtremor. The inversion analysis is performed to generate shear wave velocity profile. Hundreds of sites are investigated in this study. The results show that observed H/V is consistent with the theoretical H/V. National Earthquake Hazard Reduction Program code is adopted to classify the site class. The results also exhibit that Bengkulu City is dominated by Site Classes C and D. In general, this study could lead local government to consider seismic hazard mitigation for spatial plan.https://doi.org/10.1186/s40677-021-00178-yEarthquakesShear wave velocityMicrotremorSite class, Bengkulu
spellingShingle Lindung Zalbuin Mase
Nanang Sugianto
Refrizon
Seismic hazard microzonation of Bengkulu City, Indonesia
Geoenvironmental Disasters
Earthquakes
Shear wave velocity
Microtremor
Site class, Bengkulu
title Seismic hazard microzonation of Bengkulu City, Indonesia
title_full Seismic hazard microzonation of Bengkulu City, Indonesia
title_fullStr Seismic hazard microzonation of Bengkulu City, Indonesia
title_full_unstemmed Seismic hazard microzonation of Bengkulu City, Indonesia
title_short Seismic hazard microzonation of Bengkulu City, Indonesia
title_sort seismic hazard microzonation of bengkulu city indonesia
topic Earthquakes
Shear wave velocity
Microtremor
Site class, Bengkulu
url https://doi.org/10.1186/s40677-021-00178-y
work_keys_str_mv AT lindungzalbuinmase seismichazardmicrozonationofbengkulucityindonesia
AT nanangsugianto seismichazardmicrozonationofbengkulucityindonesia
AT refrizon seismichazardmicrozonationofbengkulucityindonesia