Supplement to “Synchronization of great subduction megathrust earthquakes: Insights from scale model analysis”
Cite as:
Rosenau, Matthias; Horenko, Illia; Corbi, Fabio; Rudolf, Michael; Kornhuber, Ralf; Oncken, Onno (2019): Supplement to “Synchronization of great subduction megathrust earthquakes: Insights from scale model analysis”. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2019.005
Status
I N R E V I E W : Rosenau, Matthias; Horenko, Illia; Corbi, Fabio; Rudolf, Michael; Kornhuber, Ralf; Oncken, Onno (2019): Supplement to “Synchronization of great subduction megathrust earthquakes: Insights from scale model analysis”. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2019.005
Abstract
This data set provides data from subduction zone earthquake experiments and analysis described in Rosenau et al. (2019). In the experiments analogue seismotectonic scale models of subduction zones characterized by two seismogenic asperities are used to study the interaction of asperities over multiple seismic cycles by means of static (Coulomb failure) stress transfer. Various asperity geometries (lateral/along-strike of the subduction zone distance and vertical/across-strike of the subduction zone offset) are tested on their effect on recurrence pattern of simulated great (M8+) earthquakes.
The results demonstrate the role of stress coupling in the synchronization of asperities leading to multi-asperity M9+ events in nature. The data set contains time series of experimental surface velocities from which analogue earthquakes are detected and classified into synchronized events and solo events. The latter are subcategorized into main events and aftershocks and into normal and thrust events. An analogue earthquake catalogue lists all categorized events of the 12 experiments used for statistical analysis. Moreover, results from elastic dislocation modelling aimed ate quantifying the stress coupling between the asperities for the various geometries are summarized. Basic statistics of classified events (e.g. percentage of categorized events, coefficient of variation in size and recurrence time etc.) are documented. Matlab scripts are provided to visualize the data as in the paper.
Authors
Rosenau, Matthias;GFZ German Research Centre for Geosciences, Potsdam, Germany
Horenko, Illia;Università della Svizzera Italiana, Lugano, Switzerland
Corbi, Fabio;Roma Tre University, Rome, Italy;University of Montpellier, Montpellier, France
Rudolf, Michael;GFZ German Research Centre for Geosciences, Potsdam, Germany
Kornhuber, Ralf;Freie University Berlin, Berlin, Germany
Oncken, Onno;GFZ German Research Centre for Geosciences, Potsdam, Germany
Contact
Rosenau, Matthias
(Lab Manager); GFZ German Research Centre for Geosciences, Potsdam, Germany; ➦
Contributors
HelTec - Helmholtz Laboratory for Tectonic Modelling (GFZ German Research Centre for Geosciences, Germany)
Funders
Deutsche Forschungsgemeinschaft:
SFB1114 Scaling Cascades in Complex Systems (SFB1114)
Keywords
multi-scale laboratories, Megathrust earthquakes, computational statistics, analogue models of geologic processes, analogue modelling results, software tools, EPOS, European Plate Observing System, deformation, tectonic process > subduction, Digital Image Correlation (DIC) / Particle Image Velocimetry (PIV) > StrainMaster (La Vision GmbH), Earthquake simulator, megathrust, Rubber, Silicon/Silly putty/PDMS, Sugar, tectonic setting > plate margin setting > forearc setting, tectonic setting > plate margin setting > subduction zone setting, Time lapse camera, Digital Image Correlation (DIC) / Particle Image Velocimetry (PIV) > StrainMaster (La Vision GmbH), Earthquake simulator, Rubber, Silicon/Silly putty/PDMS, Sugar, Time lapse camera, deformation, megathrust, tectonic process > subduction, tectonic setting > plate margin setting > forearc setting, tectonic setting > plate margin setting > subduction zone setting
affiliation (affiliationIdentifier=0000-0003-1134-5381 affiliationIdentifierScheme=ORCID): GFZ German Research Centre for Geosciences, Potsdam, Germany
creator
creatorName (nameType=Personal): Horenko, Illia
givenName: Illia
familyName: Horenko
affiliation: Università della Svizzera Italiana, Lugano, Switzerland
affiliation (affiliationIdentifier=0000-0002-5077-5221 affiliationIdentifierScheme=ORCID): GFZ German Research Centre for Geosciences, Potsdam, Germany
creator
creatorName (nameType=Personal): Kornhuber, Ralf
givenName: Ralf
familyName: Kornhuber
affiliation: Freie University Berlin, Berlin, Germany
affiliation (affiliationIdentifier=0000-0002-2894-480X affiliationIdentifierScheme=ORCID): GFZ German Research Centre for Geosciences, Potsdam, Germany
titles
title: Supplement to “Synchronization of great subduction megathrust earthquakes: Insights from scale model analysis”
affiliation (affiliationIdentifier=9ba34c109b827b177aab36e0266b1643 affiliationIdentifierScheme=labid): GFZ German Research Centre for Geosciences, Potsdam, Germany
contributor (contributorType=ContactPerson)
contributorName: Rosenau, Matthias
affiliation (affiliationIdentifier= affiliationIdentifierScheme=): GFZ German Research Centre for Geosciences, Potsdam, Germany
CharacterString: This data set provides data from subduction zone earthquake experiments and analysis described in Rosenau et al. (2019). In the experiments analogue seismotectonic scale models of subduction zones characterized by two seismogenic asperities are used to study the interaction of asperities over multiple seismic cycles by means of static (Coulomb failure) stress transfer. Various asperity geometries (lateral/along-strike of the subduction zone distance and vertical/across-strike of the subduction zone offset) are tested on their effect on recurrence pattern of simulated great (M8+) earthquakes.
The results demonstrate the role of stress coupling in the synchronization of asperities leading to multi-asperity M9+ events in nature. The data set contains time series of experimental surface velocities from which analogue earthquakes are detected and classified into synchronized events and solo events. The latter are subcategorized into main events and aftershocks and into normal and thrust events. An analogue earthquake catalogue lists all categorized events of the 12 experiments used for statistical analysis. Moreover, results from elastic dislocation modelling aimed ate quantifying the stress coupling between the asperities for the various geometries are summarized. Basic statistics of classified events (e.g. percentage of categorized events, coefficient of variation in size and recurrence time etc.) are documented. Matlab scripts are provided to visualize the data as in the paper.
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