PALEOSEISMICITY OF 2016 MW 7.8 KAIKŌURA EARTHQUAKE FAULTS: WHAT HAVE WE LEARNT AND THE IMPLICATIONS FOR THE NEW ZEALAND SEISMIC HAZARD MODEL

2019 ◽  
Author(s):  
Robert M. Langridge ◽  
Keyword(s):  
New Zealand ◽  
Seismic Hazard ◽  
Hazard Model ◽  
Earthquake Faults ◽  
Kaikoura Earthquake

A Hybrid Time‐Dependent Probabilistic Seismic‐Hazard Model for Canterbury, New Zealand

2016 ◽  
Vol 87 (6) ◽  
pp. 1311-1318 ◽  
Author(s):  
Matthew C. Gerstenberger ◽  
David A. Rhoades ◽  
Graeme H. McVerry
Keyword(s):  
New Zealand ◽  
Seismic Hazard ◽  
Hazard Model ◽  
Time Dependent ◽  
Probabilistic Seismic Hazard

scholarly journals Seismic hazard of the Canterbury region, New Zealand

2008 ◽  
Vol 41 (2) ◽  
pp. 51-67 ◽  
Author(s):  
Mark Stirling ◽  
Matthew Gerstenberger ◽  
Nicola Litchfield ◽  
Graeme McVerry ◽  
Warwick Smith ◽  
...  
Keyword(s):  
New Zealand ◽  
Seismic Hazard ◽  
Hazard Model ◽  
Source Model ◽  
Southern Alps ◽  
Earthquake Source ◽  
Probabilistic Seismic Hazard ◽  
Regional Pattern ◽  
New Methods

We present a new probabilistic seismic hazard model for the Canterbury region, the model superseding the earlier model of Stirling et al. (1999, 2001). The updated model incorporates new onshore and offshore fault data, new seismicity data, new methods for the earthquake source parameterisation of both datasets, and new methods for estimation of the expected levels of Modified Mercalli Intensity (MMI) across the region. While the overall regional pattern of estimated hazard has not changed since the earlier seismic hazard model, there have been slight reductions in hazard in some areas (western Canterbury Plains and eastern Southern Alps), coupled with significant increases in hazard in one area (immediately northeast of Kaikoura). The changes to estimated acceleration for the new versus older model serve to show the extent that major changes to a multidisciplinary source model may impact the final estimates of hazard, while the new MMI estimates show the added impact of a new methodology for calculating MMI hazard.

National Seismic Hazard Model for New Zealand: 2010 Update

2012 ◽  
Vol 102 (4) ◽  
pp. 1514-1542 ◽  
Author(s):  
M. Stirling ◽  
G. McVerry ◽  
M. Gerstenberger ◽  
N. Litchfield ◽  
R. Van Dissen ◽  
...  
Keyword(s):  
New Zealand ◽  
Seismic Hazard ◽  
Hazard Model

Challenges and opportunities in New Zealand seismic hazard and risk modeling using OpenQuake

2020 ◽  
Vol 36 (1_suppl) ◽  
pp. 210-225
Author(s):  
Elizabeth Abbott ◽  
Nick Horspool ◽  
Matt Gerstenberger ◽  
Rand Huso ◽  
Chris Van Houtte ◽  
...  
Keyword(s):  
New Zealand ◽  
Seismic Hazard ◽  
Disaster Response ◽  
Risk Modeling ◽  
Legacy Code ◽  
Fortran Code ◽  
Challenges And Opportunities ◽  
Hazard And Risk ◽  
Kaikoura Earthquake ◽  
Post Disaster

The corrected 2010 New Zealand National Seismic Hazard Model has been adapted for use in the Global Earthquake Model’s OpenQuake engine through an extensive benchmarking exercise with GNS Science’s legacy Fortran code. Resolution of differences between the legacy code and OpenQuake result in hazard curve output comparisons with discrepancies of less than 3% nationally and remaining discrepancies highlight challenges faced when moving away from in-house legacy code. OpenQuake’s multiple and varied computation options for both hazard and risk and OpenQuake’s consistent, software-friendly output formats allow for exploration and development of innovative approaches to future seismic hazard and risk modeling in New Zealand. The end-to-end seismic hazard-to-risk capabilities already enabled by the inclusion of New Zealand seismic hazard, vulnerability, and building exposure models in OpenQuake have already had significant impact on post-disaster response to the 2016 Kaikōura earthquake.

scholarly journals Seismic hazard estimates for the Auckland area, and their design and construction implications

1992 ◽  
Vol 25 (3) ◽  
pp. 211-221 ◽  
Author(s):  
David J. Dowrick
Keyword(s):  
New Zealand ◽  
Seismic Hazard ◽  
Hazard Model ◽  
Earthquake Risk ◽  
Return Periods ◽  
Local Seismicity ◽  
Earthquake Resistant Design ◽  
Earthquake Resistant ◽  
New Construction ◽  
Design And Construction

Revised estimates of the return periods of Modified Mercalli (MM) intensity for Auckland and Northland, arising from a revision of the attenuation of intensity in New Zealand, and latest data and views on the local seismicity and geology, represent considerable reductions in the hazard given in Smith and Berryman's seismic hazard model of New Zealand. The revised levels are MM6 and MM7 for 150 and 1200 year return periods. This implies that most structures and plant in Auckland and Northland could have much simpler and less onerous earthquake resistant design and construction than required by current codes. This simpler approach would be significantly cheaper for older so-called "earthquake risk buildings" as well as new construction.

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