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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2019-651-FA

AKA: CRADA Hosgri coring project

Other ID: none

Status: Completed

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

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

Principal Investigator(s): Jared Kluesner

Affiliate Investigator(s):

Information Specialist(s): Alicia Balster-gee

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

Scientific Purpose/Goals: To collect sediment cores and CHIRP data to asses sediment ages and slip rates along the Hosgri Fault Zone.

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

Start Port/Location: Oakland, CA

End Port/Location: San Diego, CA

Start Date: 2019-10-18

End Date: 2019-10-24

Equipment Used: Differential GPS, Vibracore, 512 chirp-source, Other, 512 chirp, Mini sparker

Information to be Derived: sediment thickness and sediment age, grain size

Summary of Activity and Data Gathered: 36 chirp profiles (65 profiles including turns and line parts), 32 multichannel minisparker profiles, and 23 vibracores from 20 locations.


Affiliate Staff:



Offshore Morro Bay

North: 35.77579932 South: 34.56729133 West: -121.43364429 East: -120.61263084


photo of Bold Horizon
Bold Horizon


Snyder, G.R., Balster-Gee, A.F., Kluesner, J.W., Johnson, S.Y., Media, E., Simms, A., Nishenko, S., Greene, G., Conrad, J.E., 2022, Geophysical and core sample data collected offshore central California, during field activity 2019-651-FA: U.S. Geological Survey data release,


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Differential GPS --- Navigation
Vibracore --- Geology
512 chirp-source --- Sub Bottom Profiler
Other --- --- ---
512 chirp --- Sub Bottom Profiler
Mini sparker --- Sparker

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