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of 121
pro vyhledávání: '"Helmstetter, Agnès"'
Autor:
Guéguen, Philippe, Janex, Gael, Nomade, Jérôme, Langlais, Mickael, Helmstetter, Agnès, Coutant, Olivier, Schwartz, Stéphane, Dollet, Cyrielle
Publikováno v:
Comptes Rendus. Géoscience, Vol 353, Iss S1, Pp 517-534 (2021)
In 2017–2019, a seismic swarm was triggered in the Maurienne valley (French Alps), with more than 5000 events detected by the regional SISmalp network. The population, who asked SISmalp to provide information on the processes and the associated ris
Externí odkaz:
https://doaj.org/article/5d24afdac26d475a9aeabc64c02c1c55
Autor:
Gimbert, Florent, Nanni, Ugo, Roux, Philippe, Helmstetter, Agnés, Garambois, Stéphane, Lecointre, Albanne, Walpersdorf, Andrea, Jourdain, Bruno, Langlais, Mickael, Larman, Olivier, Lindner, Fabian, Sergeant, Amandine, Vincent, Christian, Walter, Fabian
Recent work in the field of cryo-seismology demonstrates that high frequency (>1 Hz) waves provide key constraints on a wide range of glacier processes such as basal friction, surface crevassing or subglacial water flow. Establishing quantitative lin
Externí odkaz:
http://arxiv.org/abs/2009.06321
Akademický článek
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Publikováno v:
In Structural Safety May 2020 84
Autor:
Helmstetter, Agnès
On s'intéresse à la rupture associée à deux classes de phénomènes naturels, les séismes et les instabilités gravitaires. Pour les séismes, on étudie un modèle stochastique de sismicité, basé sur les deux lois les mieux établies pour la
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00010935
http://tel.archives-ouvertes.fr/docs/00/04/90/85/PDF/tel-00010935.pdf
http://tel.archives-ouvertes.fr/docs/00/04/90/85/PDF/tel-00010935.pdf
Autor:
Helmstetter, Agnes, Shaw, Bruce E.
We study how a stress perturbation generated by a mainshock affects a population of faults obeying a rate-state friction law. Depending on the model parameters and on the initial state, the fault exhibits aftershocks, slow earthquakes, or decaying af
Externí odkaz:
http://arxiv.org/abs/physics/0703249
Autor:
Minetto, Riccardo1 (AUTHOR) riccardo.minetto@univ-grenoble-alpes.fr, Helmstetter, Agnès1 (AUTHOR), Schwartz, Stéphane1 (AUTHOR), Langlais, Mickaël1 (AUTHOR), Nomade, Jérôme1 (AUTHOR), Guéguen, Philippe1 (AUTHOR)
Publikováno v:
Earth & Space Science. Jul2022, Vol. 9 Issue 7, p1-19. 19p.
Autor:
Helmstetter, Agnes, Shaw, Bruce E.
Publikováno v:
J. Geophys. Res., 111, B07304, doi:10.1029/2005JB004077 (2006)
We estimate the rate of aftershocks triggered by a heterogeneous stress change, using the rate-and-state model of Dieterich [1994].We show that an exponential stress distribution Pt(au) ~exp(-tautau_0) gives an Omori law decay of aftershocks with tim
Externí odkaz:
http://arxiv.org/abs/physics/0509252
Autor:
Helmstetter, Agnes, Sornette, Didier
Publikováno v:
Phys. Rev. Lett. Lett. 92, 129801 (2004)
Mega et al.(cond-mat/0212529) proposed to use the ``diffusion entropy'' (DE) method to demonstrate that the distribution of time intervals between a large earthquake (the mainshock of a given seismic sequence) and the next one does not obey Poisson s
Externí odkaz:
http://arxiv.org/abs/physics/0307134
Autor:
Helmstetter, Agnes, Sornette, Didier
Publikováno v:
Geophys. Res. Lett., 30, 2069, 10.1029/2003GL018186 (2003)
The empirical Bath's law states that the average difference in magnitude between a mainshock and its largest aftershock is 1.2, regardless of the mainshock magnitude. Following Vere-Jones [1969] and Console et al. [2003], we show that the origin of B
Externí odkaz:
http://arxiv.org/abs/physics/0307083