Generalizing the inversion‐based PSHA source model for an interconnected fault system

Bulletin of the Seismological Society of America
By: , and 

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Abstract

This article represents a step toward generalizing and simplifying the procedure for constructing an inversion‐based seismic hazard source model for an interconnected fault system, including the specification of adjustable segmentation constraints. A very simple example is used to maximize understandability and to counter the notion that an inversion approach is only applicable when an abundance of data is available. Also exemplified is how to construct a range of models to adequately represent epistemic uncertainties (which should be a high priority in any hazard assessment). Opportunity is also taken to address common concerns and misunderstandings associated with the third Uniform California Earthquake Rupture Forecast, including the seemingly disproportionate number of large‐magnitude events, and how well hazard is resolved given the overall problem is very underdetermined. However, the main aim of this article is to provide a general protocol for constructing such models.

Publication type Article
Publication Subtype Journal Article
Title Generalizing the inversion‐based PSHA source model for an interconnected fault system
Series title Bulletin of the Seismological Society of America
DOI 10.1785/0120200219
Edition Online First
Year Published 2020
Language English
Publisher Seismological Society of America
Contributing office(s) Geologic Hazards Science Center
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