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Stabilization of fault slip by fluid injection in the laboratory and in situ

Cappa, Frédéric and Scuderi, Marco Maria and Collettini, Cristiano and Guglielmi, Yves and Avouac, Jean-Philippe (2019) Stabilization of fault slip by fluid injection in the laboratory and in situ. Science Advances, 5 (3). Art. No. eaau4065. ISSN 2375-2548. PMCID PMC6415952. http://resolver.caltech.edu/CaltechAUTHORS:20190321-083801765

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Abstract

Faults can slip seismically or aseismically depending on their hydromechanical properties, which can be measured in the laboratory. Here, we demonstrate that fault slip induced by fluid injection in a natural fault at the decametric scale is quantitatively consistent with fault slip and frictional properties measured in the laboratory. The increase in fluid pressure first induces accelerating aseismic creep and fault opening. As the fluid pressure increases further, friction becomes mainly rate strengthening, favoring aseismic slip. Our study reveals how coupling between fault slip and fluid flow promotes stable fault creep during fluid injection. Seismicity is most probably triggered indirectly by the fluid injection due to loading of nonpressurized fault patches by aseismic creep.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1126/sciadv.aau4065DOIArticle
http://advances.sciencemag.org/cgi/content/full/5/3/eaau4065/DC1PublisherSupplementary Materials
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415952PubMed CentralArticle
ORCID:
AuthorORCID
Cappa, Frédéric0000-0003-4859-8024
Scuderi, Marco Maria0000-0001-5232-0792
Collettini, Cristiano0000-0002-4828-2516
Guglielmi, Yves0000-0001-9581-7475
Avouac, Jean-Philippe0000-0002-3060-8442
Additional Information:© 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). Submitted 7 June 2018; Accepted 30 January 2019; Published 13 March 2019. We thank M. Violay and J. Hazzard for fruitful discussions and P. Segall and one anonymous reviewer for constructive comments. The research presented in this paper is supported by the Agence Nationale de la Recherche (ANR) through the “HYDROSEIS” project under contract no. ANR-13-JS06-0004-01. F.C. was partially supported by the Institut Universitaire de France, and by the French government, through the UCAJEDI Investments in the Future project managed by the ANR with reference no. ANR-15-IDEX-01 at the Université Côte d’Azur. Laboratory experiments have been funded by ERC grant no. 259256 GLASS to C.C. and Marie Sklodowska-Curie grant no. 656676 FEAT to M.M.S. Author contributions: All authors contributed to the data analysis, discussions and interpretations of results, and writing of the article. F.C. conceived the original idea, led the study, conducted the in situ experiment, and developed the hydromechanical modeling. M.M.S. and C.C. conducted the laboratory experiments and data processing. Y.G. conducted the in situ experiment and data processing. J.-P.A. contributed to the model development and analysis of data and modeling results. The authors declare that they have no competing interests. Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials. Additional data related to this paper may be requested from the authors. Data are also housed in the Géoazur laboratory, Université Côte d’Azur, France (email: cappa@geoazur.unice.fr).
Group:Seismological Laboratory
Funders:
Funding AgencyGrant Number
Agence Nationale de la Recherche (ANR)ANR-13-JS06-0004-01
Institut Universitaire de FranceInstitut Universitaire de FranceUNSPECIFIED
Agence Nationale pour la Recherche (ANR)ANR-15-IDEX-01
European Research Council (ERC)259256 GLASS
Marie Curie Fellowship656676 FEAT
PubMed Central ID:PMC6415952
Record Number:CaltechAUTHORS:20190321-083801765
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190321-083801765
Official Citation:Cappa, M. M. Scuderi, C. Collettini, Y. Guglielmi, J.-P. Avouac, Stabilization of fault slip by fluid injection in the laboratory and in situ. Sci. Adv. 5, eaau4065 (2019); doi: 10.1126/sciadv.aau4065
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94017
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 Mar 2019 16:08
Last Modified:21 Mar 2019 16:08

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