Estimation of Tsunami Hazard in New Zealand due to South American Earthquakes |
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Authors: | William Power Gaye Downes Mark Stirling |
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Institution: | (1) GNS Science, 1 Fairway Drive, Avalon, PO Box 30368 Lower Hutt, New Zealand |
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Abstract: | We develop a probabilistic model for estimating the tsunami hazard along the coast of New Zealand due to plate-interface earthquakes
along the South American subduction zone. To do this we develop statistical and physical models for several stages in the
process of tsunami generation and propagation, and develop a method for combining these models to produce hazard estimates
using a Monte-Carlo technique. This process is largely analogous to that used for seismic hazard modelling, but is distinguished
from it by the use of a physical model to represent the tsunami propagation, as opposed to the use of empirical attenuation
models for probabilistic seismic hazard analysis. |
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Keywords: | Tsunami New Zealand probabilistic hazard model Monte Carlo |
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