Ground Motion Modeling

Virtual Session Goals

The goal of the Ground Motion Modeling Topical Workshop is to define from a community perspective the broad needs, goals, and directions of ground motion modeling and hazard in Cascadia and to identify priorities in fundamental and applied science directions for the next decade.  The desired outcome is to write a peer reviewed roadmap or opinion piece for this frontier.

The Ground Motion Modeling Topical Workshop originally scheduled for October 2025 was postponed. We are continuing to pursue our goals through two virtual sessions conducted January 9 and 29, followed by an in-person workshop coming up on Wednesday, May 27, 2026.

Virtual session agendas, slides and video recordings are available on this page. Click on the button below for information on the May 27, 2026 in-person workshop.

Virtual Session Agendas and Resources

Recordings

Friday, January 9, 2026 – Outputs: What ground motion estimation in Cascadia needs to address

Presentation slides – See links in agenda below for slide decks

9:00 – 11:00 am P.S.T., on zoom

Thursday, January 29, 2026 – “Inputs and Methodologies”

Presentation slides – See links in agenda below for available slide decks

9:00 – 11:00 am P.S.T., on zoom

Workshop Planning Committee

Valerie Sahakian, University of Oregon

Valerie Sahakian
University of Oregon
vjs@uoregon.edu

Alice Gabriel
University of California, San Diego
algabriel@ucsd.edu 

Erin Wirth, US Geological Survey

Erin (Wirth) Moriarty
United States Geological Survey
emoriarty@usgs.gov

Emrah Yenier
Haley & Aldrich 
EYenier@haleyaldrich.com

Chih-Hsuan Sung
University of California, Berkeley
karensung@berkeley.edu 

Alex grant, US Geological Survey

alex grant
United States Geological Survey
agrant@usgs.gov

Brett Maurer
University of Washington
bwmaurer@uw.edu

Norman Abrahamson
University of California, Berkeley
abrahamson@berkeley.edu 

Morgan Moschetti
United States Geological Survey
mmoschetti@usgs.gov

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