SSA Session Announcements

Dear SCEC Community, 

Below are two announcements regarding sessions at the SSA 2015 Annual Meeting.

Regards,

SCEC Information

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This is a reminder to consider contributing an abstract to our session about surface-rupturing earthquakes at the upcoming SSA Meeting in Pasadena, CA. Abstract deadline is January 9, 2015.

http://www.seismosoc.org/meetings/2015/

Scott, Kate, and Julian

Session Title: How Reliable Are Reconstructions and Models of Surface-Rupturing Earthquakes?

Historic surface-rupturing earthquakes have demonstrated a potential for complex, discontinuous rupture traces. With this in mind, how well do reconstructions and models of past ruptures from paleoseismology, geomorphologic slip-rate studies, or finite fault models and forecasts of future surface-rupturing earthquakes [e.g. UCERF3 (CA), WGUEP (UT), J-SHIS (Japan)] realistically describe the complexity of surface ruptures? Are earthquake magnitudes and rupture lengths from empirically-based models consistent with individual field-based observations (e.g. timing, displacement) of past events)? This session will highlight advancements in earthquake science that improve our understanding of fault segmentation, rupture dynamics, distributed deformation, along-strike and down-dip fault-slip gradients, and related seismic hazard topics. We welcome abstracts from a wide spectrum of scientists, including paleoseismologic studies of Quaternary-active structures, detailed studies of modern ruptures, and dynamic or simulator models of rupture scenarios. We invite discussion of new, innovative approaches that characterize active structures and earthquakes using field-based techniques, computer modeling, and remote sensing. The goal of this session will be to consider ways to improve the documentation of past earthquakes and to advance our estimates of earthquake probabilities.

Conveners:
Scott Bennett (USGS Golden)
Kate Scharer (USGS Pasadena)
Julian Lozos (Stanford/USGS Menlo Park)

Invited Speakers:
James Dolan (USC)
Eileen Evans (USGS)
Jacqui Gilchrist (UC Riverside)

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Dear SCEC Community ,

Please consider contributing an abstract to our session about atypical earthquakes at the upcoming SSA Meeting in Pasadena, CA. Abstract deadline is January 9, 2015.

http://www.seismosoc.org/meetings/2015/

Doug, Richard, Jack, Elizabeth, Michele

The Where, When and Why of Uncharacteristic Earthquakes

Session Description. Unexpectedly large and/or complex historic earthquakes, such as the 1920 Haiyuan, 1960 Chile, 1988 Spitak, 1992 Landers, 2011 Tohoku, 2012 Indian Ocean quakes, among others, beg the questions: where might the next uncharacteristic event occur, and have geoscientists underestimated the maximum size and rates of these type of events? These uncharacteristic earthquakes all ruptured through hypothesized segment boundaries that appear to impede rupture during typical earthquakes on these fault systems. Southern California contains a number of world-class examples of complex fault systems – the southern San Andreas fault system, the Eastern California Shear Zone, and the Transverse Ranges oblique-thrust system – that may spawn the next surprisingly large earthquake. With this meeting surrounded by these examples, we seek contributions that provide global insight into the record of and processes controlling regular versus atypically large events on fault systems. We welcome abstracts utilizing the geologic record, geophysical data, crustal deformation models and dynamic rupture models to shed insight into the behavior of these potentially devastating large earthquakes.

Conveners:
Doug Yule, Richard Heermance (CSUN)
Elizabeth Madden, Michele Cooke (UMass Amherst)
Jack Loveless (Smith College)

Invited Speakers:
Nadia Lapusta (Caltech)
Roger Bilham (CU Boulder)
Scott Bennett (USGS Golden)