Thread: SSA 2014: Diverse mechanisms of subduction zone fault slip: Exploring the relationships between seismic rupture, transient slip, and steady creep

Started: 2013-12-18 20:20:11
Last activity: 2013-12-18 20:20:11
Topics: Early Careers
Dear Colleagues,

We invite you to submit an abstract to the session " Diverse mechanisms of subduction zone fault slip: Exploring the relationships between seismic rupture, transient slip, and steady creep" at the Seismological Society of America meeting to be held in Anchorage, Alaska (http://www.seismosoc.org/meetings/2014/). The meeting will take place 30 April - 2 May 2014, and more information on the session can be found below.

Abstracts are due 10 January 2014.

Diverse mechanisms of subduction zone fault slip: Exploring the relationships between seismic rupture, transient slip, and steady creep


The release of elastic energy at subduction zone faults can result in intense ground shaking over broad regions and sea floor displacement that generates immense tsunamis. Tectonic tremor and/or slow slip, commonly observed between the seismogenic zone and down-dip stable sliding, represents an intermediate mechanism for faults to accommodate plate convergence. Yet the relative location of these different slip behaviors varies among subduction zones both along-strike and along-dip. Additionally, some subduction zones accommodate strain through aseismic stable sliding within the depth range where large earthquakes are expected to occur. Why such variability exists (e.g., frictional, rheological properties, material heterogeneity, variations in fluid pressure) and how it affects great earthquakes (e.g., up-dip or down-dip extent of seismic rupture, incomplete inter-seismic coupling) is poorly understood. It also remains unclear whether these diverse mechanisms are consistent over time or what role they play in the earthquake cycle. The objective of this session is to showcase the current understanding on these topics, and we seek to combine a wide range of abstracts that utilize observations, theory, or modeling with aspects from seismology, geodesy, lab experiments, and field observations.


Session Chairs: Harmony Colella, Emily Roland, Aaron Wech

Dr. Harmony Colella
Postdoctoral Research Fellow
National Science Foundation
Miami University of Ohio
114 Shideler Hall, Room 206
Oxford, OH 45056
colellhv<at>miamiOH.edu
harmonycolella.com





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