[unav_all] GSA 2014, Session T141 - Measuring and Modeling Aseismic Transient Slip along Plate Boundaries

Kathleen Hodgkinson hodgkin at unavco.org
Tue Jun 10 16:19:57 MDT 2014

Dear Colleagues,

Please consider submitting an abstract to  the poster session T141. Measuring and Modeling Aseismic Transient Slip along Plate Boundaries , at the GSA Annual Meeting 19-22 October, 2014 in Vancouver, BC. The submission deadline is Tuesday, July 29th (http://community.geosociety.org/gsa2014/science/sessions)

The growth of continuously operating geodetic networks along the Cascadia subduction zone in the past 10 years has provided the ability to capture Episodic Tremor and Slip (ETS) strain transients with unprecedented spatial and temporal resolution. Dense networks of high-rate GPS sites, such as those run by the Plate Boundary Observatory, the Pacific Northwest Geodetic Array, the Western Canada Deformation Array and the USGS allow near real-time imaging of the evolution of the strain field above the subducting plate interface while borehole strainmeters yield measurements of the strain signals at the nanostrain level.  Similar data is now being collected in several subduction zones worldwide. Integrating data from instruments such as strainmeters, tiltmeters and GPS can yield valuable information on the magnitude, propagation rate and location of the deformation complementing measurements of seismic tremor.  Seafloor pressure data and continuously monitored groundwater levels have also contributed constraints.  We encourage abstracts about using geodetic data to model ETS and other types of transient plate boundary deformation or the comparison of geodetic measurements with seismic observations. Presentations describing the operation of these geophysical networks and the systems required to collect, archive and distribute the associated data products are also welcome.

GSA Geophysics Division; GSA Structural Geology and Tectonics Division

Thank you, 

Evelyn Roeloffs (USGS), David Schmidt (UW) and Kathleen Hodgkinson (UNAVCO), Session Conveners
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