[unav_all] AGU Session T04: Earthquakes at the Edge: Observing and Understanding Transitions of Seismogenic Properties and Processes Along Subduction Zones

Andrew Newman anewman at gatech.edu
Thu Jul 30 14:49:39 MDT 2009

Dear Colleagues,

We would like to invite you to contribute to special session T04 in 
Tectonophysics (joint with Geodesy and Seismology) aimed at discussing 
studies that explore the parameters that contribute to the spatial 
extend of subduction zone seismogenensis.

T04: "Earthquakes at the Edge: Observing and Understanding Transitions 
of Seismogenic Properties and Processes Along Subduction Zones"

The world’s largest earthquakes occur in subduction zones; with the 
ultimate magnitude controlled by the updip, downdip and lateral extent 
of rupture. Additionally, the updip and lateral extent contribute 
greatly to tsunami generation. Barriers to rupture propagation may be 
controlled by prior seismic and aseismic slip, material behavior, 
subducted topography, fluid pressure, temperature and overburden that 
affect interface effective stress, strength, and friction. However, 
precise determinations of the defining parameters remain elusive. 
Because transitions mark critical changes in environmental parameters 
that result in earthquake rupture propagation or cessation, 
multidisciplinary studies that explore these transitions can greatly 
improve our understanding of earthquake and tsunami occurrence and 

We invite contributions that address present challenges or offer new 
insights or synthesis studies aimed at understanding the nature and 
extent of seismogenic updip, downdip, and lateral transitions along the 
subduction interface. Studies may focus on short and/or long-term 
character of the seismogenic system.

If you have further questions about the session, please feel free to 
contact any of the conveners. We look forward to seeing you in December!

Elizabeth Screaton
University of Florida
Gainesville, Fl, USA 32611
screaton at ufl.edu

Saneatsu Saito
2-15 Natsushima-cho
Yokosuka, JPN 237-0061
saito at jamstec.go.jp

Andrew V Newman
Georgia Institute of Technology
Atlanta, GA, USA 30332
anewman at gatech.edu

Robert N Harris
Oregon State University
Corvallis, OR, USA 97331
rharris at coas.oregonstate.edu

Andrew V. Newman                anewman at gatech.edu
Assistant Professor
School of Earth and Atmospheric Sciences
Georgia Institute of Technology
311 Ferst Drive               Office: 404-894-3976
ES&T, Room 2254                  Lab: 404-385-2050
Atlanta, GA, 30332-0340          Fax: 404-894-5638

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