Ecole de Physique des Houches, 1-5 June 2026
Following the success of the 1st international workshop on swarm-like seismicity, we are pleased to announce that the 2nd workshop will take place from 1st to 5th June 2026 at the École de Physique des Houches, France. This event continues the collaborative momentum initiated within this growing community and aims to strengthen connections through future projects—particularly by leveraging European Community programs such as doctoral networks.
This workshop will feature oral and poster presentations to share the latest insights and developments in the study of swarm-like seismicity.
About Swarm-like Seismicity
Earthquake swarms are clusters of earthquakes occurring closely in time and space, but unlike typical mainshock–aftershock sequences, they lack a dominant mainshock at the beginning. These swarms are observed in tectonically active regions worldwide, commonly near volcanoes, and are frequently associated with industrial operations involving subsurface fluid injection or extraction.
In a broader context, foreshock sequences and complex seismic episodes with multiple significant events can also be considered part of the swarm-like seismicity spectrum.
Swarm-like sequences are typically driven by transient processes, including:
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Fluid pressurization and redistribution,
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Aseismic slip,
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Magma migration,
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Slow and fast deformation transients,
- Human-induced activities such as fluid injection/withdrawal.
Despite their global occurrence and significance, the underlying physical mechanisms of swarm-like sequences remain insufficiently understood. This limits our ability to reliably forecast their spatio-temporal evolution and energy release—an issue of particular importance in cases of anthropogenic swarms or rare swarms that precede destructive mainshocks.
Workshop Scope and Objectives
This workshop is dedicated to deepening our understanding of :
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The physics of earthquake swarms,
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Their occurrence patterns and geological environments,
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Cross-disciplinary methods for analyzing swarm-like seismicity.
We aim to:
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Strengthen ongoing collaborations within the international community,
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Encourage early-career scientists to engage with cutting-edge research on earthquakes, fluids, and aseismic processes,
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Highlight recent breakthroughs and foster discussion on emerging developments.
We look forward to welcoming researchers from all backgrounds interested in this dynamic and interdisciplinary field, and to fostering continued collaboration beyond the workshop.
Abstract submission
Abstracts can be submitted from the 1/1/2026 to the 28/2/2026. Applicants will be notified by the end of March 2026.
Organization Commitee
David Marsan (USMB, ISTerre Le Bourget du Lac, France), Blandine Gardonio (CNRS, ISTerre, Le Bourget du Lac, France), Louis de Barros (OCA, Nice, France), Luigi Passarelli (INGV, Bologna, Italy)
Scientific Commitee
David Marsan (USMB, ISTerre Le Bourget du Lac, France), Blandine Gardonio (CNRS, ISTerre, Le Bourget du Lac, France), Louis de Barros (OCA, Nice, France), Luigi Passarelli (INGV, Italy), Kate Huihsuan Chen (National Taiwan Normal University), Yen Joe Tan (Chinese University of Hong Kong), Yihe Huang (University of Michigan), Olivier Lengliné (Université de Strasbourg), Julie Maury (BRGM Orléans), Kristine Pankow (University of Utah)
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