Communications


2023

  • Helmstetter, A., Clusters of low- and high-frequency repeating icequakes in the Mont-Blanc massif, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-16571, https://doi.org/10.5194/egusphere-egu23-16571, 2023.

2022

  • Helmstetter, A., Repeating low frequency icequakes at the base of cold glaciers in the Mont-Blanc massif triggered by snowfalls, 17-21 Oct 2022, Cargèse (France).
  • Minetto, R., Helmstetter, A., and Edwards, B. : Analysis of the spatio-temporal evolution of the seismicity induced by hydraulic fracturing operations in Preston New Road, UK, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-8688, https://doi.org/10.5194/egusphere-egu22-8688, 2022.

2021

  • Togaibekov A., A. Walpersdorf, F. Gimbert, C. Vincent, A. Helmstetter, D. Six, L. Moreau, J. P. Roldan-Blasco, L. Ott, S. Mercier, O. Laarman, L. Piard, U. Nanni, M. Matthey, B. Urruty, C. Sue, J.-N. Bouvier, M. Radiguet, O. Romeyer, and J.-L. Mugnier, Three-dimensional surface velocity variations of the Argentière glacier (French Alps) monitored with a high-resolution continuous GNSS network, EGU 2021

2020

  • Minetto, R., Helmstetter, A., Guéguen, P., Langlais, M., Coutant, O., Schwartz, S., Janex, G., Nomade, J., and Dumont, T. : High-resolution catalog of the the Maurienne Swarm (French Alps) based on template matching and double-different relocation, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-13302, https://doi.org/10.5194/egusphere-egu2020-13302, 2020

2019

  • Helmstetter, A., Repeating icequakes at Argentière glacier, Repeating Earthquakes Workshop, ENS Paris, 3-4 July 2019
  • Mickael Langlais, Olivier Coutant, Agnes Helmstetter, Philippe Gueguen, Emelyne Maufroy, Stéphane Schwartz, and Thierry Dumont, “La Chapelle” seismic swarm, a newly active zone in the Maurienne Valley, French Alps. EGU meeting 2019, EGU2019-16201
  • Laurent Baillet, Fabrice Guyoton, Eric Larose, David Amitrano, Etienne Rey, Agnès Helmstetter, Denis Jong- mans, Mathieu Lebreton, Gaelle Leroy, and Guilhem Scheiblin, Geophysics, Geomechanics, Geotechnics Inno- vation Laboratory (LABCOM) : a private/public research project for natural hazard monitoring and warning. EGU meeting 2019, EGU2019-2825
  • Le Roy G., Helmstetter A., Amitrano D., Guyoton,F., Le Roux-Mallouf R., Characterization of rockfalls impacts through seismic signal analysis EGU meeting 2019, EGU2019-13384
  • Guillemot, Antoine ; Laurent, Baillet ; Agnès, Helmstetter ; Éric, Larose ; Raphaël, Mayoraz, Seismic monitoring of the Gugla rock glacier : observations and modeling of internal processes EGU meeting 2019, EGU2019-7130
  • Le Roy G., Helmstetter A., Amitrano D., Guyoton,F., Le Roux-Mallouf R., Caractérisation sismologique des impacts de chute de blocs, Journées Aléas Gravitaires (JAG), Nice, 8-11 octobre 2019.

2018

  • Helmstetter, A., B. Lipowsky, E. Larose, L. Baillet, R. Mayoraz, Repeating quakes triggered by snow-falls at Gugla rock-glacier : transition between stable slip and stick-slip ?, SSA meeting, Miami, 13-17 May 2018, Seism. Res. Lett. 89(2B),
    (poster, pdf)
  • Helmstetter, A., E. Larose, L. Baillet, R. Mayoraz, Repeating quakes detected at Moosfluh Rockslide (Valais, Switzerland), SSA meeting, Miami, 13-17 May 2018, , Seism. Res. Lett. 89(2B), (talk, pdf)
  • Provost, F., Malet, J. P., Hibert, C., Helmstetter, A., Amitrano, D., Landslide micro-seismicity : description and classification of seismic sources SSA meeting, Miami, 13-17 May 2018, Seism. Res. Lett. 89(2B).
  • G. Le Roy, A. Helmstetter, D. Amitrano (1), F. Guyoton, and R. Le Roux-Mallouf,
    Seismic characterization of rock falls from detachment to propagation, EGU annual meeting 2018.
  • Floriane Provost, Jean-Philippe Malet, Clément Hibert, and Agnès Helmstetter
    Landslide micro-seismicity : description and classification of endogenous seismic sources
    EGU annual meeting 2018, GU2018-16346, Poster
  • Eric Larose, Romain Thery, Antoine Guillemot, Laurent Baillet, Agnès Helmstetter, and Raphael Mayoraz,
    Monitoring surface process with ambient seismic noise : insights from Coda Wave Decorrelation and Locadiff methods, EGU annual meeting 2018, EGU2018-5469
  • Sylvain Fiolleau, Denis Jongmans, Grégory Bièvre, Agnès Helmstetter, Pascal Lacroix, and Laurent Baillet, Seismic characterization of clay- block ruptures in the Harmalière landslide (French Western Alps), EGU annual meeting 2018, EGU2018-13201
  • Fabien Hobléa, David Amitrano, Laurent Astrade, Suzanne Barnave, André Buffle, Thibaut Cardinal, Enzo Cavalier, Nathalie Cayla, Philip Deline, Xavi Gallach, Antoine Guerin, Didier Hantz, Agnès Helmstetter, Bruno Laïly, Mickaël Langlais, Suzon Lejeune, Gaëlle Le Roy, Emmanuel Malet, Ludovic Ravanel, Bertrand Saint-Bézar and J. Weiss,
    Multi-method diachronic approach of the rockfalls and landslides at Mont Granier (1933 m a.s.l., Chartreuse Massif, French Alps), EGU annual meeting 2018.

2017

  • Helmstetter, A., Repeating icequakes and landquakes,
    Seminar at ETH Zurich, 27 October 2017
    (ppt)
  • Helmstetter, A., E. Larose, L. Baillet, R. Mayoraz
    Ecoute sismique du mouvement de terrain de Moosflush (Valais),
    Journées Aléas Gravitaires, Besançon, 24-25 Octobre 2017.
    (ppt)
  • Bièvre, G., A. Helmstetter, P. Lacroix, L. Baillet, M. Langlais, B. Vial, C. Voisin, E. Larose et D. Jongmans,    
    Réactivation du glissement-coulée d’Harmalière (Isère, France),
    Journées Aléas Gravitaires, Besançon, 24-25 Octobre 2017.
  • Le Roy, G., A. Helmstetter et D. Amitrano,
    Détection et caractérisation sismologique et photogrammétrique des éboulements,
    Journées Aléas Gravitaires, Besançon, 24-25 Octobre 2017.
  • Levy, C., A. Helmstetter, D. Amitrano, G. Le Roy et F. Guyoton,
    Rockfall localization attempts using small seismic array,
    Journées Aléas Gravitaires, Besançon, 24-25 Octobre 2017.
  • Radiguet, M., A. Helmstetter et A. K. Sogore,
    Suivi sismologique du glissement de terrain de La Clapière à partir de deux antennes sismiques,
    Journées Aléas Gravitaires, Besançon, 24-25 Octobre 2017.
  • Helmstetter, A., Repeating icequakes and landquakes,
    Cargèse summer school,
    EARTHQUAKES : nucleation, triggering, rupture, and relationships to aseismic processes,
    2-6 October 2017, Corsica
    (pdf)
  • Helmstetter, A., E. Larose, L. Baillet and R. Mayoraz,
    Repeating quakes detected at Gugla rock-glacier and Alestch rockslide (Valais),
    Enviroseis, From process to signal - advancing environmental seismology,
    6-9 June 2017, Ohlstadt, Germany
    (poster)
  • Helmstetter, A., E. Larose, L. Baillet and R. Mayoraz,
    “Repeaters” générés par le mouvement de terrain d’Aletsch et le glacier rocheux de Gugla (Valais),
    Séminaire ENS Paris, 4 Avril 2017 (oral presentation)
  • Le Roy G., D. Amitrano and A. Helmstetter, Multidisciplinary study of rockfalls in Chartreuse massif,
    Enviroseis, From process to signal - advancing environmental seismology,
    6-9 June 2017, Ohlstadt, Germany (poster)

2016

  • Doan, M. L., G. Bièvre, D. Jongmans, A. Helmstette and M. Radiguet, Destabilization of a clay-rich slope by rainfall : monitoring of precursors on an hectometric sliding surface, American Geophysical Union, Fall General Assembly 2016, abstract #MR41B-2705
  • Helmstetter, A., Repeating Icequakes and landquakes, Seminar at the Institute for Statistical Mathematics, October 2016, Japan
    (oral presentation)
  • Helmstetter, A., Repeating Icequakes, Seminar at the Earthquake Research Institute, October 2016, Japan
    (oral presentation)
  • Helmstetter, A., Adaptive smoothing of seismicity in space,
    time and magnitude for long-term and
    short-term earthquake forecasts in Japan, CSEP Meeting, Earthquake Research Institute, October 2016, Japan
    (oral presentation)
  • Helmstetter, A. and M.Werner,
    Adaptive smoothing of seismicity in space,
    time and magnitude for long-term and short-term earthquake forecasts in California and Japan, Seminar at the Institute for Statistical Mathematics, October 2016, Japan
    (oral presentation)
  • Ravanel, L., D. Amitrano, P. Deline, X. Gallach, A. Helmstetter, F. Hobléa, G. Le Roy, E. Ployon,
    The small rock avalanche of January 9, 2016 from the calcareous NW pillar of the iconic Mont Granier (1933 m a.s.l., French Alps)( (poster),
    Geophysical Research Abstracts, Vol. 18, EGU2016-13535, 2016, EGU General Assembly 2016
  • Provost F., J.-P. Malet, A. Helmstetter, C. Doubre and J. Gance,
    Contribution of a 3D velocity model and of beam forming method for the
    location of microseismic sources generated in soft rock landslides (poster),
    Geophysical Research Abstracts, Vol. 18, EGU2016-15246, 2016, EGU General Assembly 2016

2015

  • Helmstetter, A., G. Janex, F. Provost, J.-P. Malet et J. R. Grasso,
    Influence of earthquakes on landslides : observations for three OMIV landslides in the French Alps (Séchilienne, Super-Sauze and la Clapière).
    French-Japanese Symposium on Earthquakes and Triggered Hazards, 16-18 Septembre 2015, Orléans, France.
    (oral presentation)
  • Colombero,C., L. Baillet, C. Comina, A. Helmstetter, D. Jongmans, E. Larose, J. Valentin and S. Vinciguerra, Spectral Analysis and Correlation of Ambient Seismic Noise. The Case Study of Madonna del Sasso (NW Italy), Near Surface Geoscience 2015 - 21st European Meeting of Environmental and Engineering Geophysics, 6-10 September 2015, Torino
  • Helmstetter, A., G. Janex, F. Provost et J.-P. Malet,
    Influence des séismes et des précipitations sur les mouvements de terrain : observations sur 3 sites OMIV (Séchilienne, Super- Sauze et la Clapière).
    Journées Aléa Gravitaire, Caen 3-4 Septembre 2015.
    (oral presentation)
  • Helmstetter, A., M. Werner,
    Adaptive smoothing of seismicity in time, space, and magnitude and applications for earthquake forecasting,
    "9th International Workshop on Statistical Seismology", Potsdam, 15-19 June 2015
  • H. Tasan, C. Beauval, A. Helmstetter, A. Sandikkaya, P. Guéguen,
    Testing Probabilistic Seismic Hazard Estimates Against Accelerometric Data
    in two countries : France And Turkey,
    CSNI Workshop on “Testing PSHA Results and Benefit of Bayesian Techniques for Seismic Hazard Assessment”
    4-6 February 2015, Eucentre Foundation, Pavia, Italy
    (paper
    and oral presentation)

2014

  • M J Werner, W Marzocchi, M Taroni, J D Zechar, M Gerstenberger, M Liukis,
    D A Rhoades, C Cattania, A Christophersen, S Hainzl, A Helmstetter, A Jimenez, S Steacy, T H Jordan,
    Retrospective Evaluation of Earthquake Forecasts during the 2010-12 Canterbury,
    New Zealand, Earthquake Sequence,
    AGU Fall Meeting, San Francisco December 2014, poster S23A-4481
  • Röösli, C., F. Walter, E. Kissling, A. Helmstetter and ROGUE Working Group,
    Basal icequakes : Insights into stick-slip motion of the Greenland Ice Sheet,
    AGU Fall Meeting, San Francisco December 2014
    (pdf)
  • Oksuz, H, C. Beauval, A. Helmstetter and P. Guéguen,
    Evaluation des modèles d’aléa sismique probabiliste à l’aide de données accélérométriques en France et en Turquie,
    Journées du RAP, Fréjus, 27 Novembre 2014.
  • Helmstetter, A., Earthquake triggering, foreshocks and aftershocks,
    Training school "EARTHQUAKES : nucleation, triggering, and relationships with aseismic processes", Cargèse, Corsica, 3-10 November 2014.
    (ppt)
  • Röösli, C., F. Walter, E. Kissling, A. Helmstetter and M. Lüthi,
    Seismic signals associated with basal processes of the Greenland Ice Sheet,
    EGU General Assembly Conference Abstracts 16, 6822,
    Vienna, Austria, 27 April – 02 May 2014
  • Röösli, C., F. Walter, A. Helmstetter and E. Kissling,
    Seismic evidence for basal stick-slip motion beneath the Greenland ice sheet
    18th Alpine Glaciology Meeting, Innsbruck, Austria, February 27-28, 2014
    (poster)
    2013

  • Tasan, H, C. Beauval, A.Helmstetter and P. Gueguen,
    Testing probabilistic seismic hazard estimations against observations, application to France,
    AGU Fall meeting, San Francisco, Calif., 3-7 December 2013 (poster)
  • Thomas Reverso, David Marsan, Agnes Helmstetter,
    Detecting aseismic transients using seismicity,
    AGU Fall meeting, San Francisco, Calif., 9 December 2013 (poster)
  • David Marsan ; Thomas Reverso ; Agnès Helmstetter ; Bogdan Enescu,
    Slow slip and aseismic deformation episodes associated with the subducting Pacific plate offshore Japan, revealed by changes in seismicity,
    AGU Fall meeting, San Francisco, Calif., 13 December 2013 (talk)
  • P. Bottelin, D. Jongmans, A. Helmstetter, L. Baillet, D. Hantz, D. Daudon, P. Villard, F. Donzé, V. Richefeu, L. Lorier, H. Cadet, A. Mathy, D. Amitrano, Analyse des signaux sismiques générés par les éboulements naturel et provoqué du Mont Néron (France), Journées Aléa Gravitaire, Grenoble, 17-18 Septembre 2013 (oral)
    (résumé)
  • A. Helmstetter, Ecoute sismique des mouvements gravitaires,
    Journées Aléa Gravitaire, Grenoble, 17-18 Septembre 2013 (oral)
    (résumé et présentation ppt)
  • G. Janex, A. Helmstetter, J-R Grasso, C. Aubert, C. Pequegnat, D. Wolyniec, Ecoute sismique des mouvements de terrains : stockage, validation et mise à disposition de données (Service National d’Observation INSU, OMIV),
    Journées Aléa Gravitaire, Grenoble, 17-18 Septembre 2013 (poster)
  • G. Janex, Bertrand C., Bievre G., Grasso J.R., Marc V., Helmstetter A., Lebourg T., Malet J.P., Remaitre A., Schmitt A.D., Tric E., Ulrich P., Vial B., and Vidal M,
    Auscultation des mouvements de terrains : le réseau instrumental OMIV,
    Journées Aléa Gravitaire, Grenoble, 17-18 Septembre 2013 (poster)
  • Ménard, G., D. Hantz, A. Helmstetter, D. Hervé, P. Lacroix, et S. Rigollet,
    Le point sur les auscultations (nivellement, extensométrie, GPS, sismicité) autour de l’effondrement minier de Mas Caché (Chartreuse méridionale).
    Journées Aléa Gravitaire, Grenoble, 17-18 Septembre 2013 (oral)
    (résumé)
  • Werner, M. J., Helmstetter, A., Jackson, D. D., and Kagan, Y. Y.,
    Short-term earthquake predictability in California,
    SCEC Annual Meeting, Palm Springs, California, 8-11 September 2013
  • Reverso, T., D. Marsan, and A.Helmstetter,
    Searching for aseismic slip in subduction zones (poster),
    EGU meeting, Vienna, 9 April 2013
  • Tasan, H., C. Beauval, A. Helmstetter and P. Gueguen,
    Testing probabilistic seismic hazard assessment estimations against accelerometric data in France (poster),
    EGU meeting, Vienna, 9 April 2013
  • Tasan, H., C. Beauval, A.Helmstetter and P. Gueguen
    Testing probabilistic seismic hazard assessments against accelerometric data in France. (talk)
    SSA Annual Meeting, April 2013, Salt Lake City
  • Pierre Bottelin, Denis Jongmans, Agnès Helmstetter, Laurent Baillet, Didier Hantz, Dominique Daudon, Pascal Villard, Frédéric Donzé, Vincent Richefeu, Lionel Lorier, Héloïse Cadet, and Alexandre Mathy,
    Analysis of seismic signals related to natural and blasting rockfalls (Mount Néron, France) (talk),
    EGU meeting, Vienna, 10 April 2013

2012

  • Werner, M. J., Helmstetter, A., Jackson, D. D., and Kagan, Y. Y.,
    Very short-term (sub-24h) and event-based earthquake forecasting experiments in California, SCEC Annual Meeting, Palm Springs, California, 9-12 September 2012, (poster)
  • Helmstetter, A.. Présentation pour la remise de la médaille de bronze du CNRS, intitulée "Séismes et mouvements de terrains : que peut-on prédire ?" (pdf)
  • Werner, M. J., Helmstetter, A., Jackson, D. D., and Kagan, Y. Y., Probabilistic Earthquake Forecasts Based on Branching Models of Seismicity : Tracing Leon Knopoff’s Contributions. SSA meeting San Diego, 17-19 Avril 2012.
  • Helmstetter, A., and Werner, M. J., Earthquake Forecasts for California based on Adaptive Space-Time Smoothing of Seismicity and Rate-and-State Friction. SSA meeting, San Diego, 17-19 Avril 2012
    (poster)
  • Helmstetter, A., Landslides deformation : scaling and triggering mechanisms, workshop "Materials Deformation : Fluctuations, Scaling, Predictability", Les Houches, 23-26 Janvier 2012
    (pdf)

2011

  • Helmstetter, A. and M. Werner, Earthquake forecasts for California based on smoothed seismicity and rate-and-state friction, oral presentation, Workshop ”Collaboratory for the Study of Earthquake Predictability”, ETH Zurich, 3-5 October 2011
  • Daniel, G., E. Prono, F. Renard, F. Thouvenot, S. Hainzl, D. Marsan, A. Helmstetter, P. Traversa, J. L. Got, L. Jenatton and R. Guiguet,
    Possible rôle d’une surpression de fluide à l’origine de l’essaim de l’Ubaye en 2003-2004, Colloque inaugural du centre d’accueil universitaire et scientifique SEOLANE à Barcelonnette, 12-16 Septembre 2011
  • A. Helmstetter, G. Ménard, D. Hantz, P. Lacroix, F. Thouvenot et J.-R. Grasso, Etude multidisciplinaire d’un effondrement dans la carrière de ciment de Saint-Martin-le-Vinoux, Journées Aléa Gravitaires, Strasbourg 7-8 Septembre 2011
    (article et
    poster).
  • A. Helmstetter et S. Garambois, Ecoute sismique du mouvement de terrain de Séchilienne, Journées Aléa Gravitaires, Strasbourg 7-8 Septembre 2011.
    (article et
    présentation)
  • Helmstetter, A. and B.Shaw, Earthquake triggering : observations and modelling, 24th Kongsberg seminar, 11-13 May 2011, Norway.
    (ppt)
  • Helmstetter, A. Ecoute sismique du mouvement de terrain de Séchilienne.
    Séminaire INERIS Nancy, 16 Février 2011 (ppt).

2010

  • Helmstetter, A., S. Garambois, and P. Lacroix,
    Seismic monitoring of Séchilienne Rockslide (French Alps) : micro-seismicity, rockfalls, and triggering by rainfall,
    Congress on physico chemical processes in seismic faults, Padova, Italy, Nov 2010
    (pdf)
  • Lacroix, P. and A. Helmstetter, Location of seismic signals associated with micro-earthquakes and rockfalls
    on the Séchilienne landslide, French Alps, ESC, Sept 2010, Poster Presentation, Montpellier
  • Helmstetter A. and M. Werner, Earthquake forecasts for California based on smoothed seismicity and rate-and-state friction,
    ESC, Sept 2010, Oral Presentation, Montpellier
    (pdf)
  • Helmstetter A. and S. Garambois, Seismic monitoring of Séchilienne rockslide,
    ESC, Sept 2010, Poster Presentation, Montpellier
    (poster pdf)
  • Helmstetter, A., M. Werner, Yan Kagan and David Jackson,
    Comparison of different models for short-term and long-term earthquake forecasting in Italy and California,
    Seminar at the Department of Physics, University of Naples, May 2010
    (pdf)
  • Helmstetter, A., and B. Shaw,
    Earthquake triggering by stress changes : Observations and modelling using -the rate and state friction law,
    Seminar at the Second University of Naples, May 2010
    (pdf)
  • Grasso, J.-R. , S. Garambois, D ; Jongmans, A. Helmstetter, T. Lebourg, J.-P. Malet, W. Berolo, R. Béthoux, L. Daras, and P. Ulrich,
    The OMIV Observatory on landslides - Observing with Multi-parameters the Instability of Versants, EGU Vienna, 2-7 May 2010
  • Helmstetter, A., S. Garambois, J. Kasperski, J-P Duranthon, and P. Pothérat,
    Seismic monitoring of the Séchilienne Rockslide (French Alps) : analysis of seismic signals and their correlation with rainfalls,
    EGU Vienna, 2-7 May 2010 (pdf)
  • Prono, E., D. Marsan, G. Daniel, and A. Helmstetter,
    Probabilistic approach to estimate the background seismic activity - application to the 2003-2004 Ubaye earthquake swarm, France.
    EGU Vienna, 2-7 May 2010
  • Daniel, G., F. Renard, F. Thouvenot, A. Helmstetter, P. Traversa, J.-L. Got, D. Marsan, S. Hainzl, E. Prono and L. Jenatton,
    Triggering of the 2003-2004 Ubaye seismic swarm, France, by pore-pressure build-up, EGU Vienna, 2-7 May 2010
  • Helmstetter, A. and M. Werner,
    Time-dependent earthquake forecasts based on
    smoothed seismicity and rate-and-state friction.
    SSA Meeting, Portland US, 22 Avril 2010
    (pdf and
    animation)
  • Helmstetter, A.,
    Earthquake triggering by stress changes : Observations and modelling using the rate and state friction law.
    Workshop on Fluctuations in Materials Properties, Courmayeur, Italy, 27-29 January 2010
    (pdf)

2009

  • Helmstetter A. and Shaw, B., Earthquake triggering by stress changes :
    Observations and modelling using the rate and state friction law.
    International School on Complexity, 11th Course : GRAINS, FRICTION, AND FAULTS, 20-25 July 2009, Erice, Italy
    (pdf)
  • Helmstetter A., Lacroix P. and Garambois S., Seismic monitoring of Sechilienne rockslide, french Alps,
    International School on Complexity, 11th Course : GRAINS, FRICTION, AND FAULTS, 20-25 July 2009, Erice, Italy
    (pdf)
  • Helmstetter A., Lacroix P. and Garambois S., Seismic monitoring of Sechilienne rockslide, french Alps.
    Rencontre du GdR "Transport Solide Naturel", Roscoff, France, 2-4 Novembre 2009
    (pdf)

2008

  • Helmstetter, A., Applications de la sismologie à l’étude des
    instabilités gravitaires, Colloque de sismologie, Nice 18-19
    mars 2008
  • Helmstetter, A., and B. E. Shaw, Earthquake triggering by stress changes : observations and modelling using
    the rate and state friction law, ESF-FWF Conference "New Challenges In Earthquake Dynamics" Obergurgl, Austria
    18-23 October 2008 (pdf)
  • Helmstetter A., L. Sanchez, S. Garambois, J.-R. Grasso, F. Doré, Y. Orengo,
    J.-P. Duranthon, P. Pothérat and J. Kasperski,
    Suivi multidisciplinaire du mouvement de terrain de Séchilienne,
    (résumé étendu et
    présentation),
    Journées "Aléa Gravitaires", Orléans 17-18 Novembre 2008
  • Tatard, L., J.-R. Grasso et A. Helmstetter : Comportement des glissements de
    terrain en temps, taille et espace des glissements de terrain dans différents contextes,
    Journées "Aléa Gravitaires", Orléans 17-18 Novembre 2008
  • Helmstetter A., L. Sanchez, S. Garambois, J.-R. Grasso, F. Doré, Y. Orengo,
    J.-P. Duranthon, P. Pothérat and J. Kasperski, Micro-seismic monitoring of the Séchilienne rockslide, Micro and nano-seismic monitoring of landslides
    Strasbourg, 9th December 2008 (présentation)
  • Helmstetter A., L. Sanchez, S. Garambois, J.-R. Grasso, F. Doré, Y. Orengo,
    J.-P. Duranthon, P. Pothérat and J. Kasperski, Seismic monitoring of a huge rockslide (Séchilienne, French Alps),
    AGU Fall Meeting, December 2008, San Francisco
    (Poster)

2007

  • Helmstetter, A., and B. E. Shaw, Afterslip and aftershocks in the rate-and-state
    friction law, 5th International Workshop on "Statistical Seismology :
    Physical and Stochastic Modeling of Earthquake Occurrence and Forecasting", Erice, Sicily, June 2007
  • Helmstetter, A., and B. E. Shaw, Afterslip and aftershocks in the rate-and-state friction law, IUGG, Perugia, July 2007
    (ppt)
  • Helmstetter, A., and B. E. Shaw, Afterslip and aftershocks in the rate-and-state
    friction law, Euro-Conference of Rock Physics and Geomechanics on
    "Natural hazards : thermo-hydro-mechanical processes in rocks", Erice,
    Sicily, September 2007 (ppt)
  • Helmstetter, A., and B. E. Shaw, Déformation postsismique et
    répliques, réunion pro jet 3F "Micro Séismes", 6 décembre 2007 à Chambéry
    (ppt)

2006

  • Helmstetter, A., and B. E. Shaw, Relation between stress heterogeneity and
    aftershock rate in the “rate-and-state” model, 4th
    International Workshop on Statistical Seismology, January 9-13 2006,
    Shonan Village Campus, Japan
    ppt
    abstract
  • Helmstetter, A., Applications des lois de friction "rate-and-state"
    pour la modélisation des séismes, LGIT, Grenoble, Mars 2006
    ppt
  • Helmstetter, A., Earthquake Physics, Plenary talk, MYRES II "Dynamics of the Lithosphere", Verbania, Italy, July 2-6 2006
    ppt

2005

  • Helmstetter, Geophysics Seminar, Geophysics Department,
    University of Toronto, February 2005, “Small and large
    earthquakes, stress transfers and earthquake triggering", 
    ppt
  • Helmstetter A., Risk Seminar, Department of Statistics,
    University of Columbia, March 2005, “Stochastic branching
    model of seismicity and application for earthquake
    forecasting (ppt )
  • Amitrano, D. and A. Helmstetter, Brittle creep, damage, and time to failure in rocks,
    AGU Fall Meeting 2005

2004

  • Helmstetter, A., Y. Kagan and D. Jackson, Comparison of
    short-term and long-term earthquake forecast models for Southern
    California, AGU Fall Meeting, December 2004, San Francisco,
    poster

2001

  • Helmstetter, A., Grasso, J.R., Hernandez, B., Bouchon, M., Dietrich, M. And the Girose team, 2001.
    Mechanics of icequakes (La Girose glacier, French Alps). Abstract XXVI
    General Assembly European Geophysical Society, session SE12,
    poster