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USGS Coastal and Marine Geology Program

Field Activity Details for field activity B0412NC

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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
Navigation data for marine geophysical data collected between Punta Gorda and Fort Bragg (northern California (This dataset includes navigation data for marine geophysical data jointly collected by the U.S. Geological Survey (USGS) and Oregon State University in 2012, between Punta Gorda and Fort Bragg in northern California.)
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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