Consistent MMI area estimation for Australian earthquakes

Geoscience Australia has been providing estimates of felt and potential damage radiuses for all earthquakes above magnitude 3.0 since 2002. Similarly, over the last decade, using the hazard modelling software EQRM, GA has produced scenario MMI maps for most Australian cities and several cities in our region. The former uses Empirical relations developed from measuring MMI III, IV, V and VI radiuses from the isoseismal map of ~150 Australian earthquakes. The later using various GMPEs to generate the hazard field and PGA/PGV to MMI conversions to estimate MMI. These two approaches have not previously been directly compared.

We have tested the fit with between the empirical MMI areas and the scenario models for several combinations of GMPEs and PGA/PGV to MMI conversions. We also investigate the possible importance of site effects in biasing the empirical data, for which only the minimum and maximum epicentral distance was measured, particularly at low MMI. A scenario model that more accurately reflects the empirical data should be more robust than the current method, for both real-time earthquake advice and scenarios. It should also enable the conversions used to estimate the magnitude of pre-instrumental earthquakes to be tested. Additionally the GMPEs that give the best fit to the empirical data might provide guidance when selecting GMPES for PSHAs and future scenario products.

Simple

Identification info

Date (Publication)
2015-01-01T00:00:00
Date (Revision)
2018-03-02T03:54:56
Date (Revision)
2018-03-06T01:44:53
Date (Revision)
2018-03-06T05:28:33
Date (Revision)
2018-03-06T06:02:28
Date (Revision)
2018-03-07T00:23:27
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/83914

Citation identifier
Digital Object Identifier/http://dx.doi.org/10.4225/25/5a9e2eef300fb

Cited responsible party
Role Organisation / Individual Name Details
Author

Leonard, M.

 1
Point of contact
Role Organisation / Individual Name Details
Owner

Commonwealth of Australia (Geoscience Australia)
Custodian

Commonwealth of Australia (Geoscience Australia)

 Voice
Topic category
  • Geoscientific information

Extent

N
S
E
W


Maintenance and update frequency
As needed
Keywords

  • External Publication

  • Conference Paper

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

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 publication (pdf)

Link to publication (pdf)

Distribution format

  • pdf

Resource lineage

Statement

Unknown

Hierarchy level
Model
Other

External Publication

Description

Source data not available.

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/1c60273f-cbf8-36b9-e053-12a3070a4753

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Custodian

Commonwealth of Australia (Geoscience Australia)

 Voice

Type of resource

Resource scope
Model
Name

model

Type of resource

Resource scope
Dataset
Name

dataset

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/83914

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/1c60273f-cbf8-36b9-e053-12a3070a4753

Date info (Revision)
2018-04-20T05:50:20
Date info (Creation)
2015-08-03T00:00:00

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

 
 

Spatial extent

N
S
E
W



Provided by

Access to the portal

Associated resources

Not available