AGU Session Announcements | Week of July 2nd - July 6th, 2018

Dear SCEC Community,

This is the time of the year we begin to receive multiple requests to send AGU session-related announcements, particularly calls for abstracts. As usual, we will combine them together, if many are received in a week (as we have done below).

Please follow the formatting guidelines for announcement requests, always provided below the announcement.

In this announcement:

1. S031: The Mechanical and Seismological Effects of Dynamic Fracturing on Earthquake Source Mechanics, Fault Zone Structure, and Underground Explosions (Session ID#: 48810)
2. S006: Earthquake Source Physics: Unified perspectives from Kinematic Source Imaging, Physics-based Modeling, Laboratory Experiments, and Earthquake Geology (Session ID#: 43148)
3. T025: Interplay Between Seismic and Aseismic Slip: Implications for Fault Physics (Session ID#: 43301)
4. T048: The Influence of Fault Zone Structure on Plate Boundary Tectonics and Earthquakes (Session ID#: 48875)

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1. S031: The Mechanical and Seismological Effects of Dynamic Fracturing on Earthquake Source Mechanics, Fault Zone Structure, and Underground Explosions (Session ID#: 48810):
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Call for Abstracts - AGU 2018 Seismology Session

The Mechanical and Seismological Effects of Dynamic Fracturing on Earthquake Source Mechanics, Fault Zone Structure, and Underground Explosions

December 10-14, 2018; Washington, DC, USA

I will be convening a seismology session on "The Mechanical and Seismological Effects of Dynamic Fracturing on Earthquake Source Mechanics, Fault Zone Structure, and Underground Explosions” this year at the AGU centennial meeting. I encourage anyone working in the field of dynamic fracture mechanics to consider submitting an abstract to this exciting session!

Session Description: Dynamic rock fracturing on the micro and macro scales influences earthquake mechanics and the seismic radiation from earthquakes and underground explosions. The residual fracture damage in a fault zone can affect the dynamics of future earthquakes. Similarly, the residual damage surrounding a nuclear explosion can affect the coupling of subsequent explosions in the same location. The recent incorporation of microscale damage in large scale models has highlighted its role in a wide range of applications, such as but not limited to: discrimination between nuclear explosions and earthquakes, explosion yield estimation and seismic hazard assessment. This session provides an opportunity for scientists from the fields of earthquake seismology, earthquake source mechanics, fault zone geology, and underground nuclear explosion monitoring to share their latest work.

To submit an abstract: https://agu.confex.com/agu/fm18/prelim.cgi/Session/48810

Marshall Rogers-Martinez
PhD Candidate, Geophysics and Seismology
University of Southern California, Department of Earth Sciences

2. S006: Earthquake Source Physics: Unified perspectives from Kinematic Source Imaging, Physics-based Modeling, Laboratory Experiments, and Earthquake Geology (Session ID#: 43148):
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We would like to draw your attention to the following session at the AGU 2018 Fall Meeting in Washington, D.C. Abstract deadline is Wednesday, 1 August 23:59 EDT

https://agu.confex.com/agu/fm18/prelim.cgi/Session/43148

Invited Authors:
Yihe Huang, University of Michigan
Théa Ragon, Université Côte d’Azur

S006: Earthquake Source Physics: Unified perspectives from Kinematic Source Imaging, Physics-based Modeling, Laboratory Experiments, and Earthquake Geology
Session ID: 43148
Session Description:
Recent decades have seen great advances in kinematic earthquake source imaging, including the development of higher resolution imaging methods that have illuminated diverse and complex aspects of earthquake rupture behavior. Furthermore, continued efforts to synergize multiple geophysical datasets into unified source models and quantify uncertainties associated with kinematic models guide us towards the goal of deriving reliable interpretations of the resolved rupture models. These kinematic models provide essential observations to inform dynamic rupture simulations and motivate new directions for laboratory experiments. Increasing collective insight from earthquake rupture kinematics, physics-based modeling, laboratory experiments and earthquake geology provides an excellent opportunity to enhance our understanding of earthquake source physics.
This session welcomes contributions from kinematic earthquake source imaging, physics-based modeling, laboratory experiments, and earthquake geology, with particular interest in studies examining earthquake rupture processes from multiple perspectives. We hope that contributions will hint to future directions for both observational and theoretical studies.

Conveners:
Ryo Okuwaki, University of Tsukuba, Tsukuba, Japan.
Wenyuan Fan, Woods Hole Oceanographic Institution, Woods Hole, MA, United States.
Valère Lambert, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States.
Zacharie Duputel, Institut de Physique du Globe de Strasbourg, UMR 7516, Université de Strasbourg/EOST, CNRS, Strasbourg, France.

3. T025: Interplay Between Seismic and Aseismic Slip: Implications for Fault Physics (Session ID#: 43301):
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Dear colleagues,

We would like to draw your attention to the following session co-organized by the Tectonophysics, Seismology and Geodesy sections at the upcoming 2018 AGU meeting:

T025: Interplay between seismic and aseismic slip: Implications for fault physics
Session ID#: 43301

Invited speakers:
Carl Tape, University of Alaska Fairbanks
André Niemeijer, Universiteit Utrecht

Session Description:
Faults at tectonic boundaries accommodate plate motion through an array of seismic and aseismic modes of deformation. Even within these categories, there are important differences among event slip characteristics. For example, earthquakes exhibit variations in their frequency content and tsunamigenic potential. Aseismic slip transients are often, but not always, accompanied by tectonic tremor, and there remains much to be understood about the relationship between aseismic transients and earthquake nucleation. We invite contributions from observational, experimental, geological and theoretical studies that explore the variations in and interplay among seismic and aseismic slip phenomena in various tectonic settings, including the following questions: (1) Are different slip behaviors well separated in space, or can the same fault areas experience different failure modes? (2) Is there a systematic spatial or temporal relation between different slip types? (3) What are the physical mechanisms that govern this complex behavior?

Conveners:
Valère Lambert, California Institute of Technology
Kathryn Materna, University of California Berkeley
Tomoaki Nishikawa, Disaster Prevention Research Institute, Kyoto University
Yohei Hamada, Japan Agency for Marine-Earth Science and Technology

As a reminder, the abstract submission deadline is Wednesday, August 1st at 23:59 EDT.

4. T048: The Influence of Fault Zone Structure on Plate Boundary Tectonics and Earthquakes (Session ID#: 48875):
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Dear Colleagues,

We encourage you to submit an abstract to the following 2018 AGU Fall Meeting session:

T048: The Influence of Fault Zone Structure on Plate Boundary Tectonics and Earthquakes

This session highlights studies of effects of fault zone properties on crustal deformation across plate boundaries. Probabilistic-hazard models of fully coupled faults in uniform elastic models may overestimate expected earthquakes. In southern California; paleoseismic and historical data indicate a 160 year long hiatus in great earthquakes along the major plate-boundary faults. Factors affecting hazard model performance include insufficient characterization of transient slip, creep, slip triggering, and fault zone damage asymmetry. These factors may arise in part because the crust is not purely elastic, and compliant material can serve to relieve stress aseismically. Differences in seismic velocities of crustal materials and complexities in fault geometry can control rupture propagation direction and rupture across segment boundaries that could cascade into larger events. This session welcomes studies that use geodetic, geologic, and seismic data along with modeling results to illuminate spatial and temporal patterns of plate boundary deformation.

Conveners:
Andrea Donnellan, JPL
Yehuda Ben-Zion, USC
Ramón Arrowsmith, ASU
Stephen DeLong, USGS

https://agu.confex.com/agu/fm18/prelim.cgi/Session/48875

The deadline for submitting abstracts is August 1, 2018

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