2008 Annual Meeting: Earthquake Source Inversion Workshop
Conveners: Martin Mai, Danijel Schorlemmer, and Morgan Page
Date: September 7, 2008
Location: Plaza Ballroom CD, Hilton Palm Springs Resort
Earthquake source inversions image the spatio-temporal rupture evolution, and hence constitute a critical research tool to develop a better understanding of the details of the earthquake source process. However, finite-source rupture models, developed by different research teams for the same earthquake, exhibit surprisingly large intra-event variability. Moreover, a recent, small-scale “source inversion blind test” revealed the difficulties that several inversion methods had, even for a rather simple test case. Despite a number of new developments in source-inversion approaches, the reliability, resolution, and robustness of these inversion strategies has not been rigorously examined and tested.
This workshop serves as a starting point for launching an Earthquake Source Inversion Validation Exercise. We invite researchers working in earthquake source inversion (and inversion theory and application in general), users of source-rupture models (e.g., rupture-dynamic and ground-motion-simulation people), and statistical analysts (testing-center folks and related programmers). The scope of the workshop is (a) to briefly summarize current source-inversion methods; (b) to define the long-term strategy for conducting such a validation exercise; (c) to discuss the logistical and computational framework needed for this exercise; (d) to setup task groups for the different steps of the validation (model building; ground-motion synthesis; statistical analysis of submitted models; computational infrastructure).
Agenda
8:00 - 8:10 | Introduction: Scope of the workshop & review of an initial blind-test | M. Mai |
8:10 - 8:25 | Strategies for uncertainty assessment in source inversions | M. Page |
8:25 - 8:40 | Importance of covariance components for finite-source inversions | Y. Yagi |
8:40 - 8:55 | Current status of source inversion methods in Japan | K. Koketsu |
8:55 - 9:10 | Inverting for dynamic source parameters | R. Madariaga |
9:10 - 9:25 | Experience from the Dynamic Code Validation Project | R. Harris |
9:25 - 9:40 | An existing testing center: CSEP | D. Schorlemmer |
9:40 - 10:00 | Break | |
10:00 - 12:00 | OPEN DISCUSSION: Planning the source-inversion validation exercise | |
10:00 - 10:40 | DISCUSSION 1: Science issues / General questions
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10:40 - 11:20 | DISCUSSION 2: General set-up of the exercise
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11:20 - 12:00 | DISCUSSION 3: Logistics, resource, and management
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