Academic Journal
Seismic microzonation of Bandung, West Java: site characterization and its implications for seismic hazard.
| Τίτλος: | Seismic microzonation of Bandung, West Java: site characterization and its implications for seismic hazard. |
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| Συγγραφείς: | Ridwan, Mohamad, Widiyantoro, Sri, Irsyam, Masyhur, Faizal, Lutfi, Cummins, Phil R., Rawlinson, Nick, Goro, Garup L. |
| Πηγή: | Natural Hazards; Mar2025, Vol. 121 Issue 5, p5621-5636, 16p |
| Θεματικοί όροι: | Ground motion, Seismic arrays, Earth sciences, Spectral sensitivity, Geophysics, Earthquake hazard analysis |
| Γεωγραφικοί όροι: | Bandung (Indonesia) |
| Περίληψη: | Bandung is one of the major cities of Indonesia, a country that often experiences damaging earthquakes. Geologically, Bandung is located in the Bandung Basin, which has a thick sedimentary fill that likely has a significant effect on seismic ground motion. In this study, a microtremor array experiment was conducted to estimate the near-surface S-wave velocity structure using 30 observation sites spread throughout the city, each involving a triangular array configuration. The Spatial Autocorrelation method was applied to obtain dispersion curves, before S-wave velocity structure was inverted for using a Genetic Algorithm. The results show that the engineering bedrock depth in the study area ranges between 100 and 320 m, with a gradual increase toward the south, while the time-averaged shear-wave velocity to 30 m depth (Vs30) is in the range 100–340 m/s, corresponding to site classes SE and SD. These parameters were considered in a seismic hazard analysis in order to determine the effects of site characteristics on ground motion. The results reveal a potentially strong influence, particularly on the amplification factor for the city of Bandung, both for peak ground acceleration and for response spectral acceleration at 0.2 and 1.0 s. Our findings reinforce the need for detailed imaging and analysis of near surface structure in order to produce robust seismic hazard assessments. [ABSTRACT FROM AUTHOR] |
| Copyright of Natural Hazards is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Βάση Δεδομένων: | Complementary Index |
| FullText | Links: – Type: other Text: Availability: 0 CustomLinks: – Url: https://dx.doi.org/doi:10.1007/s11069-024-07010-4 Name: EDS - Springer Nature Journals (s7799221) Category: fullText Text: View record at Springer |
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| Header | DbId: edb DbLabel: Complementary Index An: 184488667 RelevancyScore: 994 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 993.543334960938 |
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| Items | – Name: Title Label: Title Group: Ti Data: Seismic microzonation of Bandung, West Java: site characterization and its implications for seismic hazard. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ridwan%2C+Mohamad%22">Ridwan, Mohamad</searchLink><br /><searchLink fieldCode="AR" term="%22Widiyantoro%2C+Sri%22">Widiyantoro, Sri</searchLink><br /><searchLink fieldCode="AR" term="%22Irsyam%2C+Masyhur%22">Irsyam, Masyhur</searchLink><br /><searchLink fieldCode="AR" term="%22Faizal%2C+Lutfi%22">Faizal, Lutfi</searchLink><br /><searchLink fieldCode="AR" term="%22Cummins%2C+Phil+R%2E%22">Cummins, Phil R.</searchLink><br /><searchLink fieldCode="AR" term="%22Rawlinson%2C+Nick%22">Rawlinson, Nick</searchLink><br /><searchLink fieldCode="AR" term="%22Goro%2C+Garup+L%2E%22">Goro, Garup L.</searchLink> – Name: TitleSource Label: Source Group: Src Data: Natural Hazards; Mar2025, Vol. 121 Issue 5, p5621-5636, 16p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Ground+motion%22">Ground motion</searchLink><br /><searchLink fieldCode="DE" term="%22Seismic+arrays%22">Seismic arrays</searchLink><br /><searchLink fieldCode="DE" term="%22Earth+sciences%22">Earth sciences</searchLink><br /><searchLink fieldCode="DE" term="%22Spectral+sensitivity%22">Spectral sensitivity</searchLink><br /><searchLink fieldCode="DE" term="%22Geophysics%22">Geophysics</searchLink><br /><searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Bandung+%28Indonesia%29%22">Bandung (Indonesia)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Bandung is one of the major cities of Indonesia, a country that often experiences damaging earthquakes. Geologically, Bandung is located in the Bandung Basin, which has a thick sedimentary fill that likely has a significant effect on seismic ground motion. In this study, a microtremor array experiment was conducted to estimate the near-surface S-wave velocity structure using 30 observation sites spread throughout the city, each involving a triangular array configuration. The Spatial Autocorrelation method was applied to obtain dispersion curves, before S-wave velocity structure was inverted for using a Genetic Algorithm. The results show that the engineering bedrock depth in the study area ranges between 100 and 320 m, with a gradual increase toward the south, while the time-averaged shear-wave velocity to 30 m depth (Vs30) is in the range 100–340 m/s, corresponding to site classes SE and SD. These parameters were considered in a seismic hazard analysis in order to determine the effects of site characteristics on ground motion. The results reveal a potentially strong influence, particularly on the amplification factor for the city of Bandung, both for peak ground acceleration and for response spectral acceleration at 0.2 and 1.0 s. Our findings reinforce the need for detailed imaging and analysis of near surface structure in order to produce robust seismic hazard assessments. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Natural Hazards is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11069-024-07010-4 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 5621 Subjects: – SubjectFull: Bandung (Indonesia) Type: general – SubjectFull: Ground motion Type: general – SubjectFull: Seismic arrays Type: general – SubjectFull: Earth sciences Type: general – SubjectFull: Spectral sensitivity Type: general – SubjectFull: Geophysics Type: general – SubjectFull: Earthquake hazard analysis Type: general Titles: – TitleFull: Seismic microzonation of Bandung, West Java: site characterization and its implications for seismic hazard. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ridwan, Mohamad – PersonEntity: Name: NameFull: Widiyantoro, Sri – PersonEntity: Name: NameFull: Irsyam, Masyhur – PersonEntity: Name: NameFull: Faizal, Lutfi – PersonEntity: Name: NameFull: Cummins, Phil R. – PersonEntity: Name: NameFull: Rawlinson, Nick – PersonEntity: Name: NameFull: Goro, Garup L. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 03 Text: Mar2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 0921030X Numbering: – Type: volume Value: 121 – Type: issue Value: 5 Titles: – TitleFull: Natural Hazards Type: main |
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