The Earthquake‐Source Inversion Validation (SIV) Project

Martin Mai, P and Schorlemmer, D and Page, M and Ampuero, J P and Asano, K and Causse, M and Custodio, S and Fan, W and Festa, G and Galis, M and Gallovic, F and Imperatori, W and Kaser, M and Malytskyy, D and Okuwaki, R and Pollitz, F and Passone, L and Razafindrakoto, H N T and Sekiguchi, H and Song, S G and Somala, S N and Thingbaijam, K K S and Twardzik, C and Driel, M v and Vyas, J C and Wang, R and Yagi, Y and Zielke, O (2016) The Earthquake‐Source Inversion Validation (SIV) Project. Seismological Research Letters, 87 (3). ISSN 0895-0695

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Finite‐fault earthquake source inversions infer the (time‐dependent) displacement on the rupture surface from geophysical data. The resulting earthquake source models document the complexity of the rupture process. However, multiple source models for the same earthquake, obtained by different research teams, often exhibit remarkable dissimilarities. To address the uncertainties in earthquake‐source inversion methods and to understand strengths and weaknesses of the various approaches used, the Source Inversion Validation (SIV) project conducts a set of forward‐modeling exercises and inversion benchmarks. In this article, we describe the SIV strategy, the initial benchmarks, and current SIV results. Furthermore, we apply statistical tools for quantitative waveform comparison and for investigating source‐model (dis)similarities that enable us to rank the solutions, and to identify particularly promising source inversion approaches. All SIV exercises (with related data and descriptions) and statistical comparison tools are available via an online collaboration platform, and we encourage source modelers to use the SIV benchmarks for developing and testing new methods. We envision that the SIV efforts will lead to new developments for tackling the earthquake‐source imaging problem.

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Item Type: Article
Subjects: Others > Earth sciences
Civil Engineering > Soil Structure Interaction
Divisions: Department of Civil Engineering
Depositing User: Team Library
Date Deposited: 12 Apr 2016 10:45
Last Modified: 12 Jul 2016 07:07
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