GeoNet Aotearoa New Zealand Earthquake Moment Tensor Solutions

A moment tensor describes the source parameters of an earthquake such as the focal mechanism (the geometry of how the crust ruptured in the earthquake) and the seismic moment (the amount of energy released). Since August 2003 when sufficient broadband seismometers were deployed, GeoNet has been able to routinely compute moment tensor solutions for New Zealand earthquakes with M > ~4. The CSV file of moment tensor solutions is updated when a moment tensor solution is calculated.


Moment Tensor Solutions can be found in Github here: https://github.com/GeoNet/data/tree/main/moment-tensor .


DOI: 10.21420/MMJ9-CZ67


Cite as:

GNS Science. (2006). GeoNet Aotearoa New Zealand Earthquake Moment Tensor solutions [Data set]. GNS Science, GeoNet. https://doi.org/10.21420/MMJ9-CZ67

Simple

Date (Publication)
2015-04-13
Status
On going
Point of contact
Organisation name Individual name Electronic mail address Role

GNS Science

info@geonet.org.nz

Point of contact
Maintenance and update frequency
Monthly
Keywords

  • earthquake

  • focal mechanism

  • earthquake source parameter

  • centroid moment tensor

  • GeoNet

  • Seismic event

  • monitoring

  • geophysical network

  • geological hazard

  • seismology

  • fault plane

  • beach ball

  • moment tensor

  • moment magnitude
Classification
Unclassified
Use constraints
Copyright
Other constraints

GeoNet content is copyright GNS Science and is licensed under a Creative Commons Attribution 3.0 New Zealand License

https://creativecommons.org/licenses/by/3.0/nz/


GeoNet Data Policy & Disclaimer

https://www.geonet.org.nz/policy

https://www.geonet.org.nz/disclaimer

Language
English
Topic category
  • Geoscientific information
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Begin date
2003-01-01T00:00:00
Distribution format
Name Version

Text
OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

 		https://www.geonet.org.nz/data/types/eq_catalogue

GeoNet Earthquake Catalogue

WWW:LINK-1.0-http--link

 		https://github.com/GeoNet/data/tree/main/moment-tensor

Moment Tensor Solutions
Hierarchy level
Dataset
Statement

Once a moment tensor solution has been calculated, data quality is controlled by using a script which retrieves information from several input and output files and updates a CSV file with all mandatory information. An email with the same information is generated and sent to interested parties. The CSV file is uploaded to GitHub and the information is checked against the email to ensure they match before the database upload is approved. Once updates to the database are approved there are no further checks done to the database. The data are not peer-reviewed prior to populating the database; however, the moment tensor method and results have been documented in several peer-reviewed manuscripts. Field headers use terminology common to seismology and units for quantitative parameters are specified in a README file where appropriate, e.g., dyne.cm for seismic moment.

Metadata

File identifier
6a21703b-90c7-4164-8476-bbcebbd6876f XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Hierarchy level name

Dataset
Date stamp
2022-10-19T14:13:27
Metadata standard name

ISO 19115:2003/19139
Metadata standard version

1.0
Metadata author
Organisation name Individual name Electronic mail address Role

GNS Science

datamanagement@gns.cri.nz

Point of contact
 
 

Overviews

overview

Spatial extent

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Keywords


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Access to the catalogue