Five AGU Session Announcements

Dear SCEC Community,

The deadline for the 2014 AGU Fall Meeting session abstract submission is coming up in just a couple of weeks (August 6). As such, we are continuing to receive a great number of requests to send out session announcements to inform, invite, and remind potential abstract submitters in advance of this deadline. Included below are more of these announcements.

If you plan to attend AGU, please take a moment to review these announcements.

Thank you!

SCEC Information

======================= Session 1680 ===================

Citizen Seismology: Applications, Technologies, and Benefits

New technologies are transforming the way the seismological community collects data and interfaces with the public and authorities. These advances are creating new potential for rapid and massive public involvement by both active and passive means. Citizen seismology not only contributes to scientific research but also pushes scientists to better understand and respond to public demands and expectations after disasters. In this session, we invite a broad range of contributions related to citizen seismology. We invite abstracts on methods for macroseismic data analysis from both historical and instrumental earthquakes as well as contributions that cover technical aspects of citizen science such as harvesting social media data, interrogating Internet traffic patterns, and operating low-cost, community-run sensors. We also welcome presentations focused on research questions that can be addressed using spatially rich, low-resolution data, and presentations focused on how best to communicate and improve seismic risk awareness using smartphones and social media.

Conveners:
Remy Bossu, Centre Sismologique Euro-Mediterraneen
Susan Hough, USGS, Pasadena
Paule Earle, USGS, Golden

Invited Speakers:
Sarah Minson, Caltech
Jonathan Bray, U.C. Berkeley
Russell Mah, USGS, Golden
Kate Huihsuan Chen, National Taiwan Normal University

======================= Session 2232 ===================

Dear Colleagues,

We would like to bring your attention to an AGU session of interest to those working on seismicity, slow slip, ductile flow, and other phenomena at the down dip end of megathrust in subduction zones: Fault Mechanics at the Brittle-Ductile Transition of Subduction Zones

"The tendency of large earthquakes to nucleate or penetrate through the brittle-ductile transition zone at their downdip end greatly impacts the stress accumulation in subduction zones. A surprising diversity of fault slip behaviors including conventional seismicity, slow slip and tectonic tremors, has been shown to co-exist near this complex rheological transition. In addition to geophysical observations, a growing number of petrological observations and rock deformation experiments combined with numerical analysis, improves constraints on the rheological and physical conditions required for the spectrum of deformation events to occur. However, outstanding questions, such as the role of rheology vs. that of surrounding conditions in the generation of "unconventional earthquakes", or the role of fluids, remain unanswered. experimental investigations and field observations that provide new information and physical models to better understand fault mechanics at the brittle-ductile transition in subduction zones.”

Conveners:
Marine Denolle, Scripps Institute of Oceanography, University of California San Diego
Noel Bartlow, Scripps Institute of Oceanography, University of California San Diego
Justin Brown, James Madison University
Nicolas Brantut, University College London

Invited Speakers:
Satoshi Ide, University of Tokyo
Michael Brudzinski, Miami University, Oxford
Sabine Den Hartog, Pennsylvania State University
Yajing Liu, McGill University

Apologize for the multiple postings,

Cheers,
Marine, Noel, Justin, and Nicolas.

======================= Session 1524 ===================

Dear Colleagues,

We would like to bring to your attention our AGU session, Physics of subduction earthquakes: from the trench to the transition zone, that aims to gather studies on observation, analysis and simulations of the dynamic rupture processes along and near the place interface of subduction zones.

"Subduction zones host great diversity in earthquake source processes, which poses a challenge as to accurately characterize the seismic hazard. Variations in properties such as fault geometry, temperature, normal stress, pore pressure, and composition may greatly contribute to seismic coupling and earthquake dynamics. To resolve these different controlling factors and mechanisms from teleseismic distances, we measure indicators of source dynamics, such as stress drop, rupture velocity, and radiation efficiency. We invite studies that provide new insight on source dynamics from earthquakes along-dip of the plate interface: shallow and tsunami(genic), megathrust, intermediate-depth, and deep earthquakes. Observations and simulations are both welcome.”

Conveners:
Marine Denolle, Scripps Institute of Oceanography, University of California San Diego
Zhongwen Zhan, Scripps Institute of Oceanography, University of California San Diego

Invited Speakers:
Germán Prieto, Massachusetts Institute of Technology
Shuo Ma, San Diego State University
Thorne Lay, University of California Santa Cruz
Cliff Frohlich, Institute for Geophysics, University of Texas at Austin

Apologize for the multi postings,

Cheers,
Marine and Zhongwen

======================= Session 1812 ===================

Dear Colleagues,

We would like to invite you to submit abstracts to the following special session at the next AGU Fall meeting:

Session ID#: 1812 (DI- Study of the Earth's Deep Interior)

Title: Dynamic Evolution of the Lithosphere-Asthenosphere Boundary System in Diverse Geological Settings: an Integrated Approach

Abstract: Geophysical observations of the lithosphere and asthenosphere under oceanic and continental plates reveal seismic and electrical anomalies that image present-day lithospheric discontinuities as well as the interface between tectonic plates and the underlying convecting mantle. Interpreting these geophysical data from different geological contexts in terms of temporal evolution of the plate/mantle system is a multi-disciplinary effort that aims to reconcile field observations, laboratory experiments, and mantle flow predictions from numerical models. We solicit contributions that improve the understanding and integration of the physical and chemical processes at work as part of the time-evolution of the plate/mantle system, including investigations of long-term rheology of deformed mantle fabrics, of fluid distribution using geophysical observations, as well as thermal and viscosity constraints from dynamic modeling.

Invited Speakers:

Lars Hansen, University of Oxford, UK
Heather Ford, Yale, New Haven, CT, USA
Rajdeep Dasgupta, Rice University, Houston, TX, USA
Greg Hirth, Brown University, Providence, RI, USA

Co-Sponsor(s):

• T - Tectonophysics
• S - Seismology
• MR - Mineral and Rock Physics
• V - Volcanology, Geophysics, and Petrology

Conveners:  

Anne Pommier, Univ California San Diego, La Jolla, CA, United States
Ed Garnero, Arizona State University, Tempe, AZ, United States
Samer Naif, Univ California San Diego, La Jolla, CA, United States
Huaiyu Yuan, Macquarie University, Sydney, Australia

The abstract deadline is 23:59 EDT on the 6th August (03:59 UTC on the 7th)

======================= Session 2534 ===================

We invite you to submit an abstract to our AGU session, which we think will be of interest to many of you:

Plate Motion, Continental Deformation, Interseismic Strain Accumulation
Session ID#: 2534
Geodesy, co-sponsored by NH, S, T

Integration of space geodetic positioning and geologic data helps to explain how plate motion is being taken up by continental deformation, and how deformation evolves through the earthquake cycle.   This should lead to better understanding of the hazards posed by large and great earthquakes.  We seek geodetic (GNSS, VLBI, SLR, DORIS, and historical measurements) and geologic studies (from geomorphology, paleoseimology, seismicity, and marine magnetic anomalies) that further constrain the character of plate boundary zone deformation and interseismic strain accumulation.  Can elastic strain buildup be readily related to future great earthquakes?  What fraction of plate motion is taken up by fault slip during earthquakes, and what fraction becomes part of distributed deformation off of the major faults?   Are the plate boundary zones better characterized as microplates or zones of homogeneous deformation?  How does fault slip inferred from paleoseismology add up to plate motion, and how fast are mountains currently rising?

Invited speakers are:
Tim Wright
Takeshi Sagiya
Frederic Masson
Rick Bennett

To submit an abstract to the session, use this handy link:
http://agu.confex.com/agu/fm14/g/papers/index.cgi?sessionid%34

Primary Convener:  Donald F Argus, JPL, Pasadena, CA, United States
Co-Convener:  Jeffrey Todd Freymueller, University of Alaska Fairbanks, Fairbanks, AK, United States 

Co-Convener:  Rui Manuel Fernandes, SEGAL — UBI, Portugal 

Dr. Jeffrey T. Freymueller         Office: 907-474-7286
Geophysical Institute                Cell:   907-378-7556
University of Alaska, Fairbanks    Home:   907-479-3550
Fairbanks, AK 99775-7320           email: jeff.freymueller@gi.alaska.edu
URL: http://www.gps.alaska.edu/jeff/jeff.html

Download Alaska GPS data: ftp://gps.alaska.edu/pub/gpsdata/