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Augmented NZ earthquake catalogue used in NZ NSHM 2022

For use in several inputs to the 2022 update to the New Zealand National Seismic Hazard Model (NZ NSHM 2022), we develop an augmented New Zealand earthquake catalogue in which we import higher-quality earthquake depths and depth uncertainties, focal mechanisms, and some locations and magnitudes from several relocated and global catalogues. These are imported into and combined with the Christophersen et al. (2022) NSHM earthquake catalogue (link further down in Other resources), in which the local magnitudes that comprise most of the GeoNet catalogue were brought into alignment with moment magnitude in a way that ensures consistency through time. Next, we use event depths, focal mechanisms, 3D models of the Hikurangi and Puysegur subduction interfaces, and relative plate motion directions to classify earthquakes as upper-plate, interface or intraslab, with special treatment of the remaining lower-quality event depths in the augmented catalogue.


DOI: https://doi.org/10.21420/1SJE-E991?x=y


Cite data as:

GNS Science. (2022). Augmented NZ earthquake catalogue used in NZ NSHM 2022 [Data set]. GNS Science. https://doi.org/10.21420/1SJE-E991?x=y


NSHM report explaining construction of the augmented catalogue:

Rollins C, Thingbaijam KK, Hutchinson, J, Gerstenberger M, Christophersen A, Eberhart-Phillips D, Rastin SJ, Van Dissen R. 2021. An augmented New Zealand earthquake catalogue, event classifications, and models of the depth distribution of shallow earthquakes in the greater New Zealand region Lower Hutt (NZ): GNS Science. 83 p. (GNS Science report; 2021/58). https://nshm-static-reports.gns.cri.nz/NSHM/ScienceReports/SR2021-58%20NSHM%20Earthquake%20Depths_FINAL.pdf

Simple

Date (Publication)
2022-09-12
Status
Completed
Point of contact
Organisation name Individual name Electronic mail address Role

GNS Science

c.rollins@gns.cri.nz

Point of contact

GNS Science

Maintenance and update frequency
As needed
Keywords
Classification
Unclassified
Aggregate Datasetindentifier
daf6b614-9d0a-45e1-8fa6-df8e2afd7d4d
Association Type
Cross reference
Initiative Type
Project
Language
English
Begin date
1460-01-01
End date
2020-12-31
Distribution format
Name Version
Distributor contact
Organisation name Individual name Electronic mail address Role

GNS Science

Publisher
OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

WWW:DOWNLOAD-1.0-http--download

https://huta22.gns.cri.nz/metadata/srv/api/records/00876699-4791-4528-a826-1d7ac3c77516/attachments/NZNSHM2022_augmentedEQcatalogue_annotated_2Aug2022.dat
Hierarchy level
Dataset
Statement

If n\a remove by deleting the 'Data quality info' heading

Metadata

File identifier
00876699-4791-4528-a826-1d7ac3c77516 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Non geographic dataset
Hierarchy level name

Non geographic dataset

Date stamp
2024-06-26T03:59:59.31246Z
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

Spatial extent

Keywords


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