Phd. Student (M/W) In Geophysics - Numerical Modeling Of The Earthquake Cycle

9 Sep 2023

Job Information

Organisation/Company

CNRS

Department

Laboratoire de géologie de l'Ecole Normale Supérieure

Research Field

Geosciences

Astronomy

Environmental science

Researcher Profile

First Stage Researcher (R1)

Country

France

Application Deadline

29 Sep 2023 - 23:59 (UTC)

Type of Contract

Temporary

Job Status

Full-time

Hours Per Week

35

Offer Starting Date

1 Jan 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

The PhD student, based on LG-ENS and fully funded by the program, is expected to work collaboratively with different researchers and students within ENS and also with the University of Tokyo. A stay of a few months at the University of Tokyo is planned to refine the numerical models as well as to analyze the seismic data. We seek a highly motivated student, having a strong interest in earthquake mechanics. Background acquired on earthquake seismology, rock mechanics and geophysics, scientific computing will be appreciated. The applicant should hold a master degree in Earth Science or related field. Enquiries regarding this PhD project might be addressed to either of the three laboratory members mentioned on the top.

Small transient stress perturbations are prone to trigger earthquakes and a better understanding of the dynamic of earthquake triggering by transient stress perturbations is essential in order to improve our understanding of earthquake physics and our consideration of seismic hazard. In the Earth's crust, these transient stress changes can be caused by various sources (passing of seismic waves, forcing by tides, hydrological load, and other seasonal climatic loads). In the framework of the three-year collaborative project SESAME (SEismicity: Statistical Analysis, Modeling and Experiments; 2023-2026) between Laboratoire de Géologie de l'Ecole Normale Supérieure (LG-ENS, Paris, France) and University of Tokyo (Japan), a PhD student is expected to develop numerical models, ranging from statistical physics to advanced solid/fault mechanics towards to our better understanding on the mechanical conditions favorable to a small stress perturbation such as tidal and seasonal triggering, at both the natural and laboratory scales.

The principal scientific question is the following: How does the modulation (susceptibility) of seismicity changes with the rate of tectonic loading, the amplitude and frequency of stress perturbations, the timing within the earthquake cycle and finally, the magnitude of the earthquakes considered?

Requirements

Research Field

Geosciences

Education Level

PhD or equivalent

Research Field

Astronomy

Education Level

PhD or equivalent

Research Field

Environmental science

Education Level

PhD or equivalent

Languages

FRENCH

Level

Basic

Research Field

Geosciences

Years of Research Experience

None

Research Field

Astronomy

Years of Research Experience

None

Research Field

Environmental science

Years of Research Experience

None

Additional Information

Additional comments

Subject title: Mechanical modelling of tidal modulation during seismic cycle using the hierarchical asperity model under various conditions of stress perturbations.

Advisor: AOCHI, Hideo (Associate researcher au Laboratoire de Géologie de l'ENS – engineer BRGM), [email protected] Second Advisor/ Supervisor: SCHUBNEL Alexandre (CNRS DR), alexandre.s[email protected] BHAT, Harsha (CNRS CR, Pr.), [email protected]

Host lab/ Team : ENS- Laboratoire de Géologie de l'ENS- UMR 8538

Financing: PhD thesis is funded by a collaborative project between CNRS and Univ. Tokyo.

Website for additional job details

https: // emploi.cnrs.fr/Offres/Doctorant/UMR8538-ALESCH-006/Default.aspx

Work Location(s)

Number of offers available

1

Company/Institute

Laboratoire de géologie de l'Ecole Normale Supérieure

Country

France

City

PARIS 05

Where to apply

Website

https: // emploi.cnrs.fr/Candidat/Offre/UMR8538-ALESCH-006/Candidater.aspx

Contact

City

PARIS 05

Website

https:// www. geologie.ens.fr

STATUS: EXPIRED