The Earthquake‐Source Inversion Validation (SIV) Project

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.

@article{id2397,
  author = {Mai, Martin and Schorlemmer, Danijel and Page ,Morgan and Ampuero , Jean-Paul and Asano , Kimiyuki  and Causse, Mathieu  and Custodio, Susana  and Fan, Wenyuan  and Festa, Gaetano  and Galis, Martin and Gallovic, Frantisek  and Imperatori, Walter and K\"aser, Martin  and Malytskyy, Dmytro and  Okuwaki, Ryo  and Pollitz, Fred  and Passone, Luca and Razafindrakoto, Hoby and Sekiguchi , Haruko  and Goo Song, Seok and Somala, Surendra and Thingbaijam, Kiran K. S.  and Twardzik, Cedric  and van Driel, Martin  and Vyas, Jagdish C. and Wang, Rongjiang  and Yagi, Yuji   and Zielke, Olaf and K\"aser, Martin},
  journal = {Seismological Research Letters},
  language = {en},
  number = {3},
  title = {The Earthquake-Source Inversion Validation (SIV) Project},
  volume = {87},
  year = {2016},
}

%O Journal Article
%A Mai, Martin
%A Schorlemmer, Danijel
%A Page ,Morgan
%A Ampuero , Jean‐Paul
%A Asano , Kimiyuki 
%A Causse, Mathieu 
%A Custodio, Susana 
%A Fan, Wenyuan 
%A Festa, Gaetano 
%A Galis, Martin
%A Gallovic, Frantisek 
%A Imperatori, Walter
%A Käser, Martin 
%A Malytskyy, Dmytro
%A  Okuwaki, Ryo 
%A Pollitz, Fred 
%A Passone, Luca
%A Razafindrakoto, Hoby
%A Sekiguchi , Haruko 
%A Goo Song, Seok
%A Somala, Surendra
%A Thingbaijam, Kiran K. S. 
%A Twardzik, Cedric 
%A van Driel, Martin 
%A Vyas, Jagdish C.
%A Wang, Rongjiang 
%A Yagi, Yuji  
%A Zielke, Olaf
%A Käser, Martin
%J Seismological Research Letters
%G en
%N 3
%T The Earthquake‐Source Inversion Validation (SIV) Project
%V 87
%D 2016