Njord Seminar with David Marsan

David Marsan is a professor at University of Savoy Mont Blanc - Chambery (Université Savoie Mont Blanc), ISTerre Laboratory.

A poster for a Njord seminar showing presenter, title, date, Njord seal, and Zoom link.

Title of the talk: Small earthquakes as indirect measures of slow slip

Since the advent of GPS measurements, slow slip phenomena have been recognized as an important part contributing to the overall slip and deformation budget of fault zones. Aseismic slip can occur as a consequence of a large earthquake (afterslip), or a fluid or magmatic intrusion (giving birth to seismic swarms), or during theoretically-derived nucleation phases of large earthquakes. This talk will cover how slow slip can affect seismicity, and how this effect can be used to directly infer the causal slow slip from the time evolution of seismicity, in the broad context of slow deformation in fault zones.

Short bio: After a PhD in theoretical physics at Paris (Université Pierre et Marie Curie), and 3 years as post-doc at University College Dublin, I am now professor at Université Savoie Mont-Blanc, ISTerre Laboratory, as a seismologist with a specific interest in understanding what governs earthquake triggering and occurrences. My approach combines high precision relocation methods and statistical analyses of seismicity patterns. I am particularly interested in subduction seismicity, swarm activity, and aftershock sequences.

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Published Nov. 13, 2023 11:25 AM - Last modified Nov. 13, 2023 11:25 AM