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USGS Coastal and Marine Geology Program

Field Activity Details for field activity B0412NC

AKA: none

Other ID: B-04-12-NC

Status: Completed

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

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

Principal Investigator(s): Samuel Johnson

Affiliate Investigator(s):

Information Specialist(s): Jeff Beeson, Samuel Johnson, Ray Sliter

Data Type(s): Electro-Magnetic: Magnetics, Location-Elevation: Navigation, Seismics: Sparker

Scientific Purpose/Goals: Mapping the northern San Andreas Fault Zone


Start Port/Location: Fort Bragg, CA

End Port/Location: Fort Bragg, CA

Start Date: 2012-09-17

End Date: 2012-09-25

Equipment Used: GPS, Mini-sparker, magnetics, Sparker

Information to be Derived: Seismic-reflection profiles; marine magnetic data

Summary of Activity and Data Gathered:

Staff: Jeff Beeson, Samuel Johnson

Affiliate Staff:
Chris Goldfinger - Oregon State Univ.

Notes: Staff information imported from InfoBank
Sam Johnson
Jeff Beeson
Chris Goldfinger - Oregon State Univ.

Non USGS data manager = Chris Goldfinger


Between Fort Bragg and Cape Mendocino

North: 40.30684 South: 39.35035 West: -124.478 East: -123.78899


photo of Derek M. Baylis
Derek M. Baylis


Beeson, J.W., and Johnson, S.Y., 2019, Offshore shallow structure and sediment distribution, Punta Gorda to Point Arena, northern California: U.S. Geological Survey Open-File Report 2019-1072,

Beeson, J.W., Johnson, S.Y., and Cochran, S.A., 2019, California State Waters Map Series Data Catalog--Punta Gorda to Point Arena Region, California: U.S. Geological Survey data release,

Beeson, J.W., Johnson, S.Y., Goldfinger, C., and Hartwell, S.R., 2016, Marine Geophysical Data - Point Arena to Cape Mendocino: U.S. Geological Survey data release.


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
GPS --- Navigation
Global positioning system (GPS) data (Provisional best file)
Mini-sparker --- Sparker
Seismic FFID/Shot/CDP data (Provisional best file)
Corrected SEG-Y (Published in Sciencebase; U.S. Geological Survey data release, DOI 10.5066/F7GT5K8R)
magnetics --- Magnetics
magnetics (Published in Sciencebase; U.S. Geological Survey data release, DOI 10.5066/F7GT5K8R)
Sparker --- Sparker

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