[CEUS-earthquake-hazards] Session on Intraplate Earthquake Sources, Processes, and Hazards in Central and Eastern North America at 2017 GSA Annual Meeting

[Horton, J. Wright]

Dear colleagues:


We encourage those of you conducting related research to submit an abstract
for *Topical Session T223. Intraplate Earthquake Sources, Processes, and
Hazards in Central and Eastern North America* at the Geological Society of
America (GSA) Annual Meeting, 22-25 October, 2017, in Seattle, Washington,
USA. The session will include invited keynote talks by Eric Calais (Ecole
Normale Supérieure, PSL Research University, France), Maureen Long (Yale
University), and Stephen Marshak (University of Illinois at
Urbana-Champaign). It is sponsored by four GSA Divisions (Structural
Geology and Tectonics, Geophysics, Environmental and Engineering Geology,
Quaternary Geology and Geomorphology), and the EarthScope National Office.
Depending on the number of abstracts submitted, a parallel poster session
in addition to the oral session may be included.



Rationale: The processes leading to intraplate earthquakes and zones of
historical seismicity in central and eastern North America are poorly
understood because earthquake rates are relatively low, surface expression
can be subtle to non-existent, and active faults can be hidden beneath the
surface or episodic in behavior. Yet the region has major population
centers in moderate to high seismic hazard regions with infrastructure that
was not built to withstand significant earthquakes. Events such as the 2011
Virginia earthquake, data from EarthScope and GeoPRISMS, paleoseismic
studies, and modeling may provide evidence for neotectonic earthquakes and
their driving mechanisms in relation to crustal structure. New results from
EarthScope Flexible Array experiments in the region are revealing the
presence of large velocity anomalies in the upper mantle that may be linked
to earthquake occurrence. We welcome contributions in any geoscience
discipline, including but not limited to seismology, structural geology and
tectonics, geomorphology, geodynamics, paleoseismology, geochronology,
geophysical imaging, and numerical modeling, that contribute new evidence
for earthquakes, refine or improve existing earthquake histories, evaluate
the potential for reactivation of ancient faults, or provide new models
explaining earthquake causal mechanisms.



Information on the Annual Meeting is at
http://community.geosociety.org/gsa2017/home , and the abstract submission
form can be found at
http://community.geosociety.org/gsa2017/science-careers/sessions/topical .
The abstract deadline is 1 August. You may submit up to two volunteered
abstracts as a presenting author for the Annual Meeting if one of these
abstracts is for a poster presentation. If you are interested in submitting
an abstract for this session, we would appreciate your letting us know in
advance. Please forward this e-mail to anyone who may be interested.



We hope to see you in Seattle!

Wright, Chris, and Rob



J. Wright Horton, Jr., U.S. Geological Survey, 926A National Center,
Reston, VA 20192, USA, whorton at usgs.gov



Christine A. Powell, Center for Earthquake Information and Research,
University of Memphis, 3890 Central Avenue, Memphis, TN 38152, USA,
capowell at memphis.edu



Robert A. Williams, U.S. Geological Survey, Geologic Hazards Science
Center, 1711 Illinois Street, Golden, CO 80401, USA, rawilliams at usgs.gov
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