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USGS Coastal and Marine Hazards and Resources Program

Field Activity Details for field activity 2025-639-FA

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AKA: none

Other ID: Eureka 2025

Status: Pending

Organization(s): USGS, Pacific Coastal and Marine Science Center, USGS, Earthquake Hazards

Funding Program(s): Coastal and marine earthquake, tsunami, and landslide active margin field studies (ZP00EQV)

Principal Investigator(s): Janet Watt

Affiliate Investigator(s):

Information Specialist(s): Janet Watt

Data Type(s): Location-Elevation: Benchmarks

Scientific Purpose/Goals: To deploy 1 new seafloor geodetic station and measure position at 4 stations in southern Cascadia

Vehicle(s): MarFac; Ford 650 Box truck - White G71-03559

Start Port/Location: Eureka, CA

End Port/Location: Eureka, CA

Start Date: 2025-08-10

End Date: 2025-09-30

Equipment Used: GNSS-A

Information to be Derived: Precise position

Summary of Activity and Data Gathered: Seafloor geodetic measurement to understand plate locking in the subduction zone and gorda plate kinematics

Staff: Rachel Marcuson

Affiliate Staff:

Notes:

Location:

Offshore Eureka, CA

Boundaries
North: 42.36936743 South: 40.48873729 West: -125.76782249 East: -124.0429683

Platform(s):

photo of ATV
ATV

Other
photo of Neil Armstrong
Neil Armstrong

Publications

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
GNSS-A --- Benchmarks

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