Product catalogue
Comparisons betweenVs30 and Spectral Response for 30 sites in Newcastle, Australia from collocated Seismic Cone Penetrometer, Active- and Passive-Source VS Data
Although the time-averaged shear-wave velocity down to 30 m depth (Vs30) can be a proxy for estimating earthquake ground-motion amplification, significant controversy exists about its limitations when used as a single parameter for the prediction of amplification. We make an extensive use of different methodologies as blind comparisons in order to question the applicability of amplification factor as defined by Vs30, for 30 sites in the Newcastle area, Australia. The multi-method approach includes past seismic cone penetrometer (SCP) and spectral analysis of surface waves (SASW), with newly acquired horizontal-to-vertical spectral ratio (H/V), passive source surface-wave spatial autocorrelation (SPAC), refraction microtremor (ReMi) and multichannel analysis of surface waves (MASW) data. We show that Vs30 can be related with spectral response but not necessarily with the maximum amplification. Transition zones within the geological boundaries may be important factors affecting site effects. Both Vs30 and amplification factor (AF) values are influenced by the velocity ratio between bedrock and overlying sediments and the presence of surficial thin low velocity layers (STL) (< 2m thick and < 150 m/s), but the velocity ratio is what affects mostly the AF. At 0.2 < T < 0.4 s, the AFs are largely influenced by surficial geology. For T > 0.5 s, amplification curves follow the order expected for hard to soft site classes. The SPAC and ReMi techniques have the smallest deviation from the average for all sites, corresponding to a factor of < 0.5 for > 75% of the data.
Simple
Identification info
- Date (Creation)
- 2015-01-01T00:00:00
- Date (Publication)
- 2018-07-06T00:40:18
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/82998
- Cited responsible party
-
Role Organisation / Individual Name Details Author Volti, T.
Author Burbidge, D.
Author Collins, C.
Author Asten, M.
Author Odum, J.
Author Stephenson, W.
Author HarrisPascal, C.
Author Holzschuh, J.
- Point of contact
-
Role Organisation / Individual Name Details Custodian MNHD
Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
Voice
- Topic category
-
- Geoscientific information
- Maintenance and update frequency
- Unknown
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Keywords
-
-
External Publication
-
Scientific Journal Paper
-
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
-
Earth Sciences
-
- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Copyright
- Alternate title
-
Copyright
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Link to article
Link to article
- OnLine resource
-
Digital Object Identifier
Digital Object Identifier
Resource lineage
- Statement
-
Unknown
- Hierarchy level
- Document
- Other
-
External Publication
- Description
-
Source data not available.
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/0eca0af1-46c1-a797-e053-12a3070a6725
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Volti, T.
Type of resource
- Resource scope
- Document
- Name
-
GA publication: External journal article
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/82998
- Date info (Revision)
- 2018-04-11T00:33:15
- Date info (Creation)
- 2015-02-11T00:00:00
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551