Offshore Observations

Special Interest Groups

Special Interest Group

Offshore Observations

The source region of the next large subduction zone earthquake in Cascadia is offshore where few instruments are located. Enhancing the quality and quantity of offshore observations in Cascadia is critical to long-term efforts of advancing CRESCENT science goals and estimating the seismic hazard. The Offshore Observations special interest group will gather broad community input on observational needs and priorities and will identify specific areas for accelerated progress through coordination and the development of collaborations that link the academic community, government entities, private companies, and international partners. In 2025, CRESCENT will host a community workshop, bringing the Cascadia offshore science community together to discuss recent progress, observational needs, and the path forward for the Offshore Observations group.

Transponder Deployment — *Transponder deployment offshore Cascadia (Photo Credit: David Schmidt).*

Engagement

Offshore Observations SIG Meets at the USGS Subduction Zone Meeting 1/8

The CRESCENT Offshore Observations SIG (https://cascadiaquakes.org/offshoreobservations/) seeks to gather broad community input on offshore observational needs and priorities in Cascadia and identify specific areas for accelerated progress through coordination and the development of collaborations. This interactive lunchtime session will introduce the SIG and its planned activities for the coming year, and will also feature an update on SZ4D’s planning for offshore observations in Cascadia and Alaska.

Agenda

12:15 USGS SZ Science meeting adjorns

Please grab lunch in the HUB foodcourt and join us in HUB Lyceum Room 160.

12:35 Introduction to the CRESCENT Offshore Observations SIG

12:40 Update on SZ4D planning for offshore observations in Cascadia and Alaska

1:00 Shallow deformation of the Cascadia accretionary wedge

1:20 Other planned SIG activities

1:35 End

13:45 USGS SZ Science meeting resumes

Resources

Learn more about the Offshore Observations SIG

CRESCENT Kickoff MEETING (Oct 2023): Offshore Observations Breakout Session Notes

If you are interesting in joining the SIG membership to help plan activities, please contact William Wilcock: wilcock@uw.edu

Materials from 11/18/24 SZ4D virtual discussion

The Offshore Observations SIG held a virtual discussion on November 18, 2024 from 10-11:30am PST to learn about SZ4D plans for offshore observations in Cascadia and to discuss synergies between SZ4D and other efforts offshore Cascadia. Slides and a recording of the presentation portion of the discussion are posted here.

BREAKOUT SESSION NOTES

PRESENTATION SLIDES