BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Memento EPFL// BEGIN:VEVENT SUMMARY:Inaugural Lecture - Prof. Marie Violay DTSTART:20221004T171500 DTEND:20221004T180000 DTSTAMP:20260510T043125Z UID:2abe092e5a4af649844e18313a6d47f4e127716bb7e4b28bb763f394 CATEGORIES:Inaugural lectures - Honorary Lecture DESCRIPTION:Prof. Marie Violay\nDate: 4 October 2022\nTime: \n\n 17:15-1 7:25 Introduction by the Dean\n 17:25-18:00 Prof. Marie Violay\n 18:05-18: 15 Introduction by the Dean\n 18:15-18:50 Prof. Brice Lecampion\n 18:50-18 :55 Closure\n 19:00 Aperitif\, Alpine-FoodLab\n\nPlace: CM1\nZoom link\n\ nTitle:\n“Laboratory simulations of fluid-induced earthquakes (FIE)”\n \nAbstract\nMany faults throughout the Earth’s crust are in a state of c ritical failure equilibrium. Anthropogenic fluid injections during hydraul ic stimulation\, reservoir impoundment\, injection of waste water or CO2 s torage can induce small stress perturbations in the underground and lead t o fault reactivation and enhanced seismic activity. These earthquakes resu lt from the interaction between fluid pressure perturbations\, in-situ str esses\, frictional and rupture processes at micro to macro scales\, and th e geometric complexity of the fault zone. Methods for risk assessment and forecasting (in terms of time\, location and magnitude) of FIEs require a sound physical basis. However\, much of the primary parameters controlling FIE dynamics cannot be measured by geophysical methods. Thus\, to establi sh new general constitutive physical FIE laws\, the temporal- and spatial- scale dependence of FIEs should first be properly investigated in the labo ratory. I will discuss several methodologies developed in our group to cap ture the mechanical and physical properties of rock materials and faults u nder crustal conditions and to constrain the associated seismicity. This i s accomplished by means of experimental research performed with unique app aratuses coupled with microstructural studies of the micro-scale processes and physical modelling of these processes. This approach can provide fund amental insight into both natural earthquakes and tectonic processes as we ll as further aid scientists and engineers to better understand\, and one day manage\, induced seismicity\, an increasingly relevant topic in geoeng ineering both globally and in Switzerland.\n\nAbout the speaker\nMarie Vio lay completed her PhD at the Geoscience faculty of the Montpellier Univers ity in 2011. She then was a research assistant at National Institute of Ge ophysics and Volcanology in Rome and at ETH Zurich. In 2015 she was appoin ted Assistant Professor and head of the Laboratory of Experimental Rock Me chanics (LEMR) at EPFL and was awarded one of the seven Energy grant of th e SNSF. In 2017\, Violay was awarded the ERC Starting Grant in the area of Earth System Science.\nThe focus of Violay’s research is to better unde rstand the mechanical and physical processes in the first 15 kilometers of the earth’s crust. She brings better understanding on how fluids and ro cks interact at these depths\, which is crucial for the development of dee p geothermal energy production. Understanding earthquake nucleation and pr opagation are other focuses of her work. She has developed new approaches combining experimental deformation\, microstructural studies of the micro- scale processes\, and modelling of these processes for the study of earthq uakes and geological reservoirs. LOCATION:CM 1 https://plan.epfl.ch/?room==CM%201%201 https://epfl.zoom.us/ j/67886315514 STATUS:CONFIRMED END:VEVENT END:VCALENDAR