Monitoring Rock Properties with the Ambient Seismic Noise: Evidences for Non-linear Response of the Crust to Weak Deformations
Event details
| Date | 29.03.2012 |
| Hour | 12:15 › 13:15 |
| Speaker | Prof. Michel Campillo |
| Location | |
| Category | Conferences - Seminars |
We use the ambient noise to image the geological structures and to monitor slight changes in the elastic properties of the crust. This recently developed technique takes advantage of the huge quantity of data provided by continuous digital seismic networks. We discuss the principle of the method and show its applications for imaging at different scales. We present examples of temporal changes of seismic speeds associated with volcanic eruptions, earthquakes and transient deformation ('creep') at depth. We discuss the possible origins of these changes.
Bio: Dr. Michel Campillo is distinguished Professor (Professor ‘Classe Exceptionnelle’) at Université Joseph Fourier, Grenoble and senior fellow of ’Institut Universitaire de France’. He is head of research group “Ondes et Structures” of ISTerre (since 2004). His present research is related to the projects: Whisper - ERC Advanced grant : Towards continuous monitoring of the continuously changing Earth and G-GAP - ANR project : New perspectives on seismic hazard in subduction zones: Episodic Tremors and Slip, passive monitoring, tectonics and strong motion scenarios. He is member of the board of Université Joseph Fourier, of the Board of Directors of the Seismological Society of America and of the Comittee for Ethics of CNRS . He is the author of about 140 publications in international peer-reviewed journals (h=36 according to ISI).
Bio: Dr. Michel Campillo is distinguished Professor (Professor ‘Classe Exceptionnelle’) at Université Joseph Fourier, Grenoble and senior fellow of ’Institut Universitaire de France’. He is head of research group “Ondes et Structures” of ISTerre (since 2004). His present research is related to the projects: Whisper - ERC Advanced grant : Towards continuous monitoring of the continuously changing Earth and G-GAP - ANR project : New perspectives on seismic hazard in subduction zones: Episodic Tremors and Slip, passive monitoring, tectonics and strong motion scenarios. He is member of the board of Université Joseph Fourier, of the Board of Directors of the Seismological Society of America and of the Comittee for Ethics of CNRS . He is the author of about 140 publications in international peer-reviewed journals (h=36 according to ISI).
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Practical information
- General public
- Free
Organizer
- Prof. Nikolas Geroliminis and Prof. Katrin Beyer
Contact
- Prof. Jean-François Molinari