Velocity Structure of the Crust and Upper Mantle in Eastern North America
Oral Session - Monday PM, October 5
The Transportable Array (TA) component of USArray has recently begun to make its way into Eastern North America, and can be expected to provide improvements in imaging capability of at least the magnitude currently demonstrated in the western U.S. Ongoing and new experiments in Canada are also expected to contribute substantially to our knowledge of the velocity structure east of the Rockies. We invite contributions on current knowledge of the structure of the crust and upper mantle beneath Eastern North America, derived from active source studies, passive-source and noise tomography, and other geophysical methods.
- Meredith Nettles
<nettles [at] ldeo [dot] columbia [dot] edu>
Lamont-Doherty Earth Observatory and Dept. of Earth & Environmental Sciences, Columbia University
Ground Motion Scaling and Attenuation Relations in Eastern North America
Oral Session - Tuesday AM, October 6
The lack of large earthquakes in the Central and Eastern United States hobbles the development of ground motion relations for these infrequent events. Recordings of moderate earthquakes at regional distances are characteristically used to estimate near-field ground motions for large earthquakes, but require attenuation relations and source scaling relations specific to the CEUS and Eastern Canada. For this session, we invite papers on all aspects of the problem of predicting ground motion from large earthquakes in the CEUS and Eastern Canada.
- John Boatwright
<boatwright [at] usgs [dot] gov>
U.S. Geological Survey, Menlo Park, CA 94025