Confluence Retirement

In an effort to consolidate USGS hosted Wikis, myUSGS’ Confluence service is scheduled for retirement on January 27th, 2023. 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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For those interested in current activity in the Subduction Zone Hazards space, the SZ4D Research Coordination Network ( and the USGS Subduction Zone Science MS Team are good places to start. 

Purpose:  A group to exchange information among interested parties about information and activities related to advancing Subduction Zone Science. The group also may host webinars, online discussions, document repositories, and more. PLEASE CONTRIBUTE YOUR NEWS AND IDEAS - YOU CAN ADD TO ALL PAGES & SITES (sign up with an email to!

USGS and University of Washington scientists collecting real-time, shipboard seafloor-mapping data in Lake Washington, near Seattle, Washington to map the Seattle Fault and find evidence of past earthquakes and submarine landslides. Photographs by Scott Bennett, USGS.

Point Of Contact: Joan Gomberg, 

To Join: Email a request to

Events and Meetings Calendar

Online user-tailored calendar

Meeting Agenda, Notes

Visit the Meetings page for more information on past and future meetings.

Relevant Documents

Links to online Science Plans, Reports, etc.

News and Action Items!

(Note links in all entries)

Find out about, and get involved in development of Subduction Zone Science proposals to the NSF

Seaside landslide triggered by the 2016 M7.8 Kaikoura, New Zealand, earthquake. USGS photograph by Kate Allstadt.

Programs, Projects & Activities Underway

Individual USGS Programs/Projects with exclusive or significant focus on subduction zones.

USGS Activities involving multiple USGS programs/projects and/or external partners.

Academic Community Activities and Programs/Projects, supported primarily by the National Science Foundation.


Mount St. Helens lahar deposit created on March 19, 1982. USGS photograph.


Anyone can become a member of the Subduction Zone Focus Group; members can add, edit and remove elements of these pages.  To join the mailing list, send an email to

Dock on Hinchinbrook Island, Prince William Sound, Alaska uplifted 8 feet during the 1964 M9.2 Alaska earthquake. USGS photograph.

Online Discussion Forum

Check out the Subduction Zone Community Forum. 

Subduction Zone Forum

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