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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2019-024-FA

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Other ID: none

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s): CMHRP Program Office Operational Costs (GY00ET2SZ00)

Principal Investigator(s): Nathaniel Miller

Affiliate Investigator(s): Janet Watt, USGS, Santa Cruz Emily Roland, University of Washington

Information Specialist(s): Other

Data Type(s): Location-Elevation: Navigation, Seismics: Multichannel, Seismics: Sparker, Seismics: Sub Bottom Profiler

Scientific Purpose/Goals: Characterize Quaternary deformation and sediment dynamics along the central and northern Cascadia margin


Start Port/Location: Seattle, WA

End Port/Location: Astoria, OR

Start Date: 2019-07-13

End Date: 2019-08-12

Equipment Used: Other, Multichannel seismics, Edgetech 512i CHIRP (PCMSC), Sparker

Information to be Derived: seismic imagery

Summary of Activity and Data Gathered: Sparker multichannel seismic and CHIRP subbottom data were acquired along the Cascadia submarine forearc offshore Oregon and Washington on R/V Rachel Carson. The lines extended from nearshore to the deformation front and were spaced every ~25-50 km. Seismic systems were owned and operated by USGS. This work occurred on R/V Carson cruises RC0028 and RC0029.

Staff: Alexander Nichols, Other

Affiliate Staff:



Northern and Central Cascadia from Mendocino Triple Junction to offshore Olympic Peninsula

North: 48.45835188 South: 42.03297433 West: -127.35351563 East: -124.36523438


photo of R/V Rachel Carson
R/V Rachel Carson


Balster-Gee, A.F., Miller, N.C., Watt, J.T., Roland, E.C., Kluesner, J.W., Heller, S.J., Hart, P.E., Sliter, R.W., Myers, E.K., Wyland, R.M., Marcuson, R.K., Johnson, C.D., Nichols, A.R., Pszczola, K., and Williams, C., 2023, High-resolution multichannel sparker seismic-reflection and chirp sub-bottom data acquired along the Cascadia margin during USGS field activity 2019-024-FA: U.S. Geological Survey data release,


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Other --- --- ---
Multichannel seismics --- Multichannel
Edgetech 512i CHIRP (PCMSC) --- Sub Bottom Profiler
Sparker --- Sparker

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