Title: Do environmental factors affect subsurface dynamics? – Unveiling subsurface deformation driven by multiple forces
Abstract: Tectonic forces are key drivers of subsurface medium changes, resulting in phenomena such as earthquakes and volcanic eruptions. Similarly, external influences, including environmental factors and human activities, also play an important role in modulating the Earth’s subsurface dynamics. How do these forces interact to influence subsurface dynamics? In this talk, I will demonstrate how we use seismic waves to track changes in the physical properties of the subsurface medium and assess the impact of external forces on its evolution. By highlighting recent studies, I will also discuss the challenges we face today in using ocean-generated ambient seismic noise to probe subsurface dynamics.
Biography: Qingyu received two bachelor’s degrees – one in environmental engineering from Ocean University of China, and then one in Geosciences from Université Joseph Fourier in Grenoble, France, She remained in Grenoble to receive her master’s degree and Ph.D in geophysics from Université Grenoble Alpes looking at the mechanical properties of the crust beneath Japan. She now works for the École et observatoire des sciences de la Terre at the Université de Strasbourg in France. She works to understand deformation within the medium across various scales using seismological approaches. Her focus lies in environmental seismology, particularly to monitor both transient and long-term subsurface deformation in a 4D context usng non-destructive passive seismic signals. This involves understanding how the Earth’s subsurface evolves under the combined influence of internal tectonic forces and external meteorological, hydrological, and oceanographic factors.
To join virtually: Zoom
Contact: qingyu.wang@unistra.fr
Recording: Zoom Recording (will be available within a week after the seminar)