
CRESCENT Topical Workshop
Offshore Observations
October 27, 2025, Seattle, WA
Workshop Goals

In an effort to coordinate future offshore science in Cascadia, we are designing the Offshore Observations workshop to bring together geoscientists across a variety of disciplines that use offshore datasets to study subduction zones. The workshop will comprise a series of short talk sessions followed by breakout groups. Session topics include fluid pathways and hydrology of subduction zones, constraints on megathrust locking state and shallow slow slip, accretionary wedge deformation, structure of the incoming plate, and future plans for ocean drilling, fiber-optic sensing, and cabled infrastructure.

Attendance

If you would like to attend this workshop, please fill out this application form. We will confirm your participation via email.
For more information, please contact us at cascadiaquakes@uoregon.edu.
Travel & Lodging

27 October 2025
HUB, University of Washington, Seattle, WA
Venue
This CRESCENT Topical Workshop will be held at the University of Washington, in Room 334 of the Husky Union Building (HUB) located at 4001 E Stevens Way NE, Seattle, WA 98195
Flights, ground transportation and parking
U District Light Rail station is 0.6 miles north of the HUB, 0.3 miles from the host hotels, and is served by regular 1LINE trains from SeaTac airport.
Bus lines 67 and 45 have routes that pass near the HUB and the host hotels.
For maps, directions, parking and other ground transportation information, go here.
Lodging
University Inn (4140 Roosevelt Way NE, Seattle, WA 98105) and Watertown Hotel (4242 Roosevelt Way NE, Seattle, WA 98105) are CRESCENT’s host hotels for overnight guests. Located a block apart from one another, they are on the west side of campus and a 0.7 mi (16 minute walk) to the HUB.
Book lodging in the CRESCENT hotel room block by following one of the links below:
OR
Call 866.866.7977 before Friday, September 12, 2025, to secure a guest room. Guests should reference “CRESCENT” and specify which hotel (The University Inn or Watertown) to receive the Group rate.
Agenda

The workshop will include sessions on the following topics:
- fluid pathways and hydrology of subduction zones
- constraints on megathrust locking state and shallow slow slip
- accretionary wedge deformation
- structure of the incoming plate
- plans for future offshore observations
Note: All times Pacific Time. Agenda is subject to change.
Monday, October 27
8:30a Check-in and coffee
9:00a Welcome
9:15a Structure of the Incoming Plate
10:30a Constraints on Megathrust Locking State and Shallow Slow Slip
11:30a Accretionary Wedge Deformation
12:30p Lunch
1:15p Fluid Pathways and Hydrology of Subduction Zones
2:15p Plans for Future Offshore Observations
3:30p Breakout discussions
4:30p Closing Remarks
5:00p Workshop concludes
Workshop Planning Committee


Matt Wei
University of Rhode Island
matt-wei@uri.edu

Anna Ledeczi
University of Washington
ledeczi@uw.edu

Brandon Shuck
Louisiana State University
bshuck@lsu.edu

Zoe Krauss
University of Washington
zkrauss@uw.edu