Offshore Subduction Zone Structure and Seismicity Along Pacific Northwest: From the Gorda Plate to the Queen Charlotte Fault [Poster]
Date: 4/24/2019
Room: Grand Ballroom
The Cascadia subduction zone extends along the Pacific Northwest from Cape Mendocino in the south to northern Vancouver Island in the north. However, convergence continues farther north beneath Haida Gwaii along the Queen Charlotte Fault, where the Pacific and North America plates meet. Across this entire area, several oceanic plates (Explorer, Juan de Fuca, Gorda, Pacific) and one continental plate (North America) interact forming a myriad of structures and a complex stress regime, with most of the important tectonic boundaries and associated seismicity located offshore. In this session we invite contributions that focus on investigating the offshore structure and convergent tectonics along the Cascadia subduction zone and the Queen Charlotte Fault using marine geophysical data, especially those that are centered on or include active and/or passive source seismic studies. We also welcome contributions that use other observational or modeling techniques to characterize stress or deformation along the margin and those that that summarize past, present and future offshore instrument deployments along the Pacific Northwest.
Conveners
Pascal Audet, University of Ottawa (pascal.audet@uottawa.ca)
Mladen Nedimovic, Dalhousie University (mladen@dal.ca)
Emily C. Roland, University of Washington (eroland@uw.edu)
Shuoshuo Han, University of Texas Institute for Geophysics (han@ig.utexas.edu)
Suzanne Carbotte, Lamont-Doherty Earth Observatory of Columbia University (carbotte@ldeo.columbia.edu)
Poster Presentations
| Participant Role | Details | Action |
|---|---|---|
| Submission | Seismic Imaging of the Gorda Slab Subduction Interface Near the Mendocino Triple Junction Using Converted Phases | View |
| Submission | Onshore/Offshore Shear-Wave Velocity Structure Along the West Coast of British Columbia from Surface-Wave Tomography | View |
| Submission | Northern Cascadia Subduction Zone Observatory | View |
| Submission | Pn Tomography of the Juan De Fuca and Gorda Plates: Constraints on Mantle Deformation and Hydration in Young Oceanic Lithosphere | View |
| Submission | New Constraints on Mantle Shear Velocity Structure Offshore Cascadia From the Joint Analysis of Teleseismic Body and Rayleigh Wave Data | View |
| Submission | Lithospheric Structure of the Juan De Fuca and Gorda Plates From Ambient Noise | View |
| Submission | Décollement initiation at Cascadia Subduction Zone from Full-Waveform Inversion | View |
Offshore Subduction Zone Structure and Seismicity Along Pacific Northwest: From the Gorda Plate to the Queen Charlotte Fault [Poster]
Description