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BEFINE SIGNED

mechanical BEhavior of Fluid-INduced Earthquakes

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EC-Contrib. €

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Project "BEFINE" data sheet

The following table provides information about the project.

Coordinator
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE 

Organization address
address: BATIMENT CE 3316 STATION 1
city: LAUSANNE
postcode: 1015
website: www.epfl.ch

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Switzerland [CH]
 Total cost 1˙982˙925 €
 EC max contribution 1˙982˙925 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-STG
 Funding Scheme ERC-STG
 Starting year 2018
 Duration (year-month-day) from 2018-03-01   to  2023-02-28

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE CH (LAUSANNE) coordinator 1˙982˙925.00

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 Project objective

Fluids play an important role in fault zone and in earthquakes generation. Fluid pressure reduces the normal effective stress, lowering the frictional strength of the fault, potentially triggering earthquake ruptures. Fluid injection induced earthquakes (FIE) are direct evidence of the effect of fluid pressure on the fault strength. In addition, natural earthquake sequences are often associated with high fluid pressures at seismogenic depths. Although simple in theory, the mechanisms that govern the nucleation, propagation and recurrence of FIEs are poorly constrained, and our ability to assess the seismic hazard that is associated with natural and induced events remains limited. This project aims to enhance our knowledge of FIE mechanisms over entire seismic cycles through multidisciplinary approaches, including the following: - Set-up and installation of a new and unique rock friction apparatus that is dedicated to the study of FIEs. - Low strain rate friction experiments (coupled with electrical conductivity measurements) to investigate the influence of fluids on fault creep and earthquake recurrence. - Intermediate strain rate friction experiments to investigate the effect of fluids on fault stability during earthquake nucleation. - High strain rate friction experiments to investigate the effect of fluids on fault weakening during earthquake propagation. - Post-mortem experimental fault analyses with state-of-art microstructural techniques. - The theoretical friction law will be calibrated with friction experiments and faulted rock microstructural observations.

These steps will produce fundamental discoveries regarding natural earthquakes and tectonic processes and help scientists understand and eventually manage the occurrence of induced seismicity, an increasingly hot topic in geo-engineering. The sustainable exploitation of geo-resources is a key research and technology challenge at the European scale, with a substantial economical and societal impact.

 Deliverables

List of deliverables.
Data Management Plan Open Research Data Pilot 2019-09-05 12:46:07

Take a look to the deliverables list in detail:  detailed list of BEFINE deliverables.

 Publications

year authors and title journal last update
List of publications.
2019 Corentin Noël, François X. Passelègue, Carolina Giorgetti, Marie Violay
Fault reactivation during fluid pressure oscillations: transition from stable to unstable slip
published pages: , ISSN: 2169-9313, DOI: 10.1029/2019jb018517
Journal of Geophysical Research: Solid Earth 2019-10-31
2019 Luis Felipe Orellana, Carolina Giorgetti, Marie Violay
Contrasting Mechanical and Hydraulic Properties of Wet and Dry Fault Zones in a Proposed Shale‐Hosted Nuclear Waste Repository
published pages: 1357-1366, ISSN: 0094-8276, DOI: 10.1029/2018gl080384
Geophysical Research Letters 46/3 2019-10-30
2018 M. Acosta, F. X. Passelègue, A. Schubnel, M. Violay
Dynamic weakening during earthquakes controlled by fluid thermodynamics
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-05603-9
Nature Communications 9/1 2019-10-28
2019 C. Noël, L. Pimienta, M. Violay
Time‐Dependent Deformations of Sandstone During Pore Fluid Pressure Oscillations: Implications for Natural and Induced Seismicity
published pages: 801-821, ISSN: 2169-9313, DOI: 10.1029/2018jb016546
Journal of Geophysical Research: Solid Earth 124/1 2019-10-28
2019 M. Violay, F. Passelegue, E. Spagnuolo, G. Di Toro, C. Cornelio
Effect of water and rock composition on re-strengthening of cohesive faults during the deceleration phase of seismic slip pulses
published pages: 55-64, ISSN: 0012-821X, DOI: 10.1016/j.epsl.2019.06.027
Earth and Planetary Science Letters 522 2019-10-28
2019 C. Cornelio, E. Spagnuolo, G. Di Toro, S. Nielsen, M. Violay
Mechanical behaviour of fluid-lubricated faults
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-019-09293-9
Nature Communications 10/1 2019-10-28
2019 L. Pimienta, L. F. Orellana, M. Violay
Variations in Elastic and Electrical Properties of Crustal Rocks With Varying Degree of Microfracturation
published pages: 6376-6396, ISSN: 2169-9313, DOI: 10.1029/2019jb017339
Journal of Geophysical Research: Solid Earth 124/7 2019-10-28

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