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See the following announcements:
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- Submit an abstract to AGU session S007: Earthquake Early Warning Systems: Performance, New Developments, and Future Plans
- Call for Abstracts - AGU 2025 Session on Nuclear Explosion Monitoring
- Call for abstracts — AGU 2025 Session S006/S021
- Working on transient creep? Attenuation? Viscoelasticity? Submit an AGU abstract to this session
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On behalf of Jessica R. Murray, U.S. Geological Survey
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Submit an abstract to AGU session S007: Earthquake Early Warning Systems: Performance, New Developments, and Future Plans
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Please consider submitting an abstract to AGU session S007 (cross-listed with Natural Hazards and Geodesy): Earthquake Early Warning Systems: Performance, New Developments, and Future Plans
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Earthquake Early Warning (EEW) Systems continue to develop around the world, expanding into new regions and countries. These systems aim to provide advance warning of moderate to strong ground shaking to populations and industries to mitigate losses. We invite contributions showcasing performance, new developments, and future plans for the ShakeAlert system in the United States as well as EEW systems operating or under consideration in other countries. Presentation topics may include advances and evaluations of existing algorithms as well as development of novel techniques to improve the timeliness and accuracy of predicted ground motions. Specifically, topics of interest include improved identification of seismic phases, identification of finite fault extent, estimation of early magnitude or location, estimation of ground motions, and incorporation of directivity. We also invite abstracts showcasing algorithms that make use of multiple data types, lower-cost sensors, fiber-optic based methods, use of artificial intelligence, and machine learning.
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We look forward to seeing you at AGU!
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Jessie Saunders, Caltech Seismological Laboratory
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Sydney Dybing, University of Washington
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On behalf of Kenny J. Ryan, AFRL
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Call for Abstracts - AGU 2025 Session on Nuclear Explosion Monitoring
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We would like to draw your attention to our session at the upcoming 2025 AGU Fall Meeting in New Orleans, Louisiana (Dec 15-19):
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Numerical Models, Laboratory Experiments, and Field Observations of Explosive or Earthquake Sources and Seismic Wave Propagation for Nuclear Explosion Monitoring
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Investigations related to how complexities in explosive or earthquake sources (e.g., point sources, finite source geometries, source depth, source energy) and near-source parameters (e.g., topography, material properties, damage) could potentially impact the resultant seismic waves for monitoring are areas of active and challenging research. This session intends to highlight physics-based capabilities of various numerical modeling codes as well as laboratory and field studies in source characterization and resultant seismic wave propagation for monitoring applications. We are open to a wide range of studies related to explosion source dynamics, earthquake rupture dynamics, source geometry/characterization, velocity structure, tectonic prestress, and material properties around sources including plasticity, fracturing, and permanent deformation. We also encourage contributions on novel research that explores scaling between numerical models, laboratory experiments, and field observations applicable to monitoring.
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Click here to submit your abstract before the July 30, 2025, 23:59 ET/03:59 UTC deadline.
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Kenny Ryan (AFRL), Qinya Liu (University of Toronto), Rongmao Zhou (AFTAC), Nanqiao Du (University of Toronto)
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On behalf of Gaspard Farge, University of California, Santa Cruz
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Call for abstracts — AGU 2025 Session S006/S021
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We invite you to submit an abstract to the AGU 2025 Fall Meeting session S006 — Collective behaviors in seismology: models and observations for complexity in seismicity, crustal mechanics and faulting.
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In this session, we welcome observational, theoretical and numerical studies addressing some aspects of the complexity in seismicity and in faulting, including but not limited to: the emergent properties of seismicity, the physics of fault interactions and seismic-aseismic feedbacks, the seismic rupture and associated transient deformation processes, or the process of strain localization.
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Deadline: Wednesday, July 30, 2025
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We look forward to your contributions!
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Éric Beaucé — Lamont Doherty Earth Observatory, Columbia University
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Gaspard Farge — École Normale Supérieure, PSL Research University
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Leila Mizrahi — ETH Zurich
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Kelian Dascher-Cousineau — Utah State University
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Davide Zaccagnino — Risks-X, Southern University of Science and Technology
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Call for abstracts — AGU 2025 Session S021
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We invite you to submit an abstract to the AGU 2025 Fall Meeting session S021 - Why do we Hear Silent Slip? Towards an Integrated Understanding of Slow Slip and its Seismic Manifestation.
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This session aims to explore how and why slow slip transitions into seismic activity, thereby improving our understanding of the dynamics of moment release in slow-slip-prone areas.
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Deadline: Wednesday, July 30, 2025
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We look forward to your contributions!
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Giuseppe Constantino — École Normale Supérieure, PSL Research University
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Gaspard Farge — École Normale Supérieure, PSL Research University
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Louise Maubant — Earthquake Research Institute, University of Tokyo, Japan
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Kate Huihsuan Chen — National Taiwan Normal University
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On behalf of Lars Hansen, University of Minnesota
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Working on transient creep? Attenuation? Viscoelasticity? Submit an AGU abstract to this session
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If you have an interest in the time-dependent mechanical properties of Earth's interior, please consider submitting an abstract to Session DI015. The official session title and description are provided below. We are also excited to advertise our two invited presenters:
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Joshua Russell, Syracuse University
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Thomas Breithaupt, University of Cambridge
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Looking forward to seeing you in New Orleans,
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Lars Hansen (on behalf of all conveners)
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Time-Dependency of Earth's Mechanical Behaviour: a Synthesis of Observational, Laboratory, and Theoretical Approaches
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Description: To fit a multitude of geophysical observations, from seismic attenuation to post-glacial relaxation, Earth's mantle must respond to stress in a more complex fashion than a simple Maxwell (elastic + viscous) model. Understanding the time-dependent, "transient" response of rocks between these endmember regimes is essential for an accurate description of Earth's mechanical behaviour. Moreover, the precise nature of the transient behaviour encodes information about Earth's present thermodynamic state, microphysics, and even (via crystallographic fabrics and grain size) stress and strain history. We invite contributions from the seismology, geodesy, rock-physics, and geodynamics communities to evaluate and assimilate recent progress on understanding Earth’s transient mechanics. Particular topics of interest include (but are not limited to): new lab observations of, or theoretical descriptions for, grain-scale deformation; attenuation/viscosity anisotropy; the role of partial melt; multifrequency approaches that span orders of magnitude in frequency and space; and novel geophysical measurements that address Earth's transient mechanics.
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