The Mw 7.6 Dusky Sound earthquake of 2009
Item
Title (Dublin Core)
en-US
The Mw 7.6 Dusky Sound earthquake of 2009
Description (Dublin Core)
en-US
The Mw 7.6 Dusky Sound earthquake of July 15th, 2009, was the largest magnitude earthquake in New Zealand since the devastating 1931 Hawke’s Bay event (Ms 7.8). The earthquake was sufficiently large to generate at least a 2.3 m wave at Passage Point. Despite its large magnitude, this event resulted in relatively minimal damage when compared to worldwide events of a similar size. This can be explained as a fortunate combination of the sparse population of the area and the specific physical characteristics of the earthquake. Centroid Moment Tensor (CMT) solutions define the rupture surface as a low-angle plane and finite fault inversions confirm the slip occurred on the interface between the eastward-subducting Australian plate and overriding Pacific plate, initiating at about 30 km depth and rupturing upward and southwestward to about 15 km depth. The oceanward rupture directivity likely contributed to the lower intensity of measured ground motion than might be expected for such a large, shallow event. The amount of radiated seismic energy from the earthquake was relatively small, and far fewer landslides were triggered from this event than from the 2003 Mw 7.2 Fiordland event.
Creator (Dublin Core)
Fry, Bill
Bannister, Stephen
Beavan, John
Bland, Lara
Bradley, Brendon
Cox, Simon
Cousins, Jim
Gale, Nora
Hancox, Graham
Holden, Caroline
Jongens, Richard
Power, William
Prasetya, Gegar
Reyners, Martin
Ristau, John
Robinson, Russell
Samsonov, Sergey
Wilson, Kate
GeoNet team
Publisher (Dublin Core)
en-US
New Zealand Society for Earthquake Engineering
Date (Dublin Core)
2010-03-31
Type (Dublin Core)
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
en-US
Article
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/288
10.5459/bnzsee.43.1.24-40
Source (Dublin Core)
en-US
Bulletin of the New Zealand Society for Earthquake Engineering; Vol 43 No 1 (2010); 24-40
2324-1543
1174-9857
Language (Dublin Core)
eng
Relation (Dublin Core)
https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/288/274
Rights (Dublin Core)
en-US
Copyright (c) 2010 Bill Fry, Stephen Bannister, John Beavan, Lara Bland, Brendon Bradley, Simon Cox, Jim Cousins, Nora Gale, Graham Hancox, Caroline Holden, Richard Jongens, William Power, Gegar Prasetya, Martin Reyners, John Ristau, Russell Robinson, Sergey Samsonov, Kate Wilson, GeoNet team
en-US
https://creativecommons.org/licenses/by/4.0
