Confluence Retirement

In an effort to consolidate USGS hosted Wikis, the myUSGS Confluence service is targeted for retirement on January 28, 2022. The official USGS Wiki and collaboration space is now SharePoint. Please migrate existing spaces and content to the SharePoint platform and remove it from Confluence at your earliest convenience. If you need any additional information or have any concerns about this change, please contact Thank you for your prompt attention to this matter.
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Community Seismic Experiment: 3D Imaging of the Cascadia Margin (USGS CMGP, EHP; UCSC, UTIG, LDEO, UW

Contact: Jenna Hill, Jared Kleusner (USGS)

USGS Powell Center Working Group “Tsunami Source Standardization for Hazards Mitigation in the United States” (CMGP, NOAA, University of Alaska Fairbanks, California Geological Survey)

 Core layers indicate likely subsidence during a great Cascadia earthquake. Preserved micro-organisms help constrain its magnitude. Images from Phipps and others, (2015). 

Cascadia Recurrence (EHP, CMGP, LHP, GMEG)

Contacts: Brian Sherrod, Joan Gomberg

Enhancing Tremor Monitoring (EHP, Pacific Northwest Seismic Network/University of Washingtion)

Contact: Aaron Wech

Automated tremor map on the Pacific Northwest Seismic Network's website.

United States-Japan Natural Resources Panel for Earthquake Research

Contact: William Leith



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