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Advances in Intraplate Earthquake Geology

Date: 4/24/2019

Time: 8:30 AM to 12:00 PM

Room: Vashon

Paleoseismic studies of intraplate faulting in regions such as the Basin and Range Province, Walker Lane and crustal Pacific Northwest are often challenged by slow (<5 mm/yr) slip rates, long (> 1 k/yr) earthquake recurrence times, distributed faulting and limited event preservation because of episodic sedimentary and pedogenic processes. To address open questions about earthquake timing and rupture length in these regions, extract new information on potential seismic sources and better characterize intraplate faulting for seismic-hazard models, new techniques and dense and high-quality data are required.
This session will include invited and contributed presentations focused on how new data and methods in earthquake geology advance our understanding of intraplate faulting. In particular, we welcome presentations on (1) high-resolution and/or long-term earthquake timing, recurrence and slip rate constraints; (2) the application of Bayesian modeling to geochronological data; (3) methods of evaluating and propagating paleoseismic uncertainties; (4) spatial and temporal trends in rupture length and displacement from high-resolution surface topography (e.g., from lidar and unmanned aircraft systems); and (5) techniques for synthesizing earthquake histories and developing fault-rupture scenarios.

Conveners

Christopher DuRoss, U.S. Geological Survey (cduross@usgs.gov)
Mark Zellman, BGC Engineers (mzellman@bgcengineering.ca)
Stephen Angster, U.S. Geological Survey (sangster@usgs.gov)

Oral Presentations