Institute: University of Lorraine
Title: Temporary Lecturer and Researcher
Country: France
Period: 2021/09/1-2022/5/31
Theme: Borehole data opens up the secret of slow earthquakes
Host: Masataka KINOSHITA
Introduction: I am a French geologist and before joining ERI, I completed my Ph.D. in Geosciences (2017-2021) from University of Lorraine, France, where I also worked as a temporary lecturer and researcher (2020-2021). My doctoral research focused on better understanding the relationships between earthquake and tsunami risks at subduction zones and the compositional, physical and hydrogeological properties of their sediment inputs. My Ph.D. project was based on core samples and logging data collected by recent expeditions of the International Ocean Discovery Program (IODP) in Sumatra (Indonesia), Hikurangi (New Zealand) and Nankai (Southwest Japan) margins.
I met my host supervisor at ERI, Professor Masataka Kinoshita, when I sailed as a structural geologist onboard the Deep-sea Scientific Drilling Vessel Chikyu during IODP Expedition 358 (2018-2019). This expedition aimed to drill for the first time the Nankai megathrust at seismogenic depths.
At ERI, we will explore seismic data and data provided by Long-Term-Borehole Monitoring-Systems (LTBMSs), a suite of high-sensitivity sensors installed in IODP subseafloor boreholes in the Nankai margin. The outcome of our research project is to better understand the source mechanisms of slow earthquakes, their role in accommodating plate motion and ultimately their relationships to large damaging earthquakes.

Fiscal Year: 2021