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ID A-1-00-SC
Abstract United States Geological Survey, Menlo Park, California. Chief Scientists: Chris Gutmacher, Stephanie Ross, Brian Edwards. Geophysical data (12khz, Huntec, uniboom, Geopulse, minisparker, minisparker, GPS, YoNav, 24channel, sparker) of field activity A-1-00-SC in Southern California from Port Hueneme to Mexican Border from 06/05/2000 to 06/29/2000
Organization United States Geological Survey, Menlo Park, California
Project/Theme Southern California Seismic Hazards Project
Chief Scientist Chris Gutmacher
Stephanie Ross
Brian Edwards
Activity Type Geophysical
Platform Auriga
Area of Operation Southern California from Port Hueneme to Mexican Border, Southern California
Bounding Coordinates
34.22868
-119.79080    -117.13802
32.58602
Ports leave Redwood City, CA
arrive Redwood City, CA
Dates 06/05/2000 (JD 157) to 06/29/2000 (JD 181)
Analog Materials list
Information Specialist
Chris Gutmacher
Crew
Chris Gutmacher Chief Scientist, Watchstander, USGS Western Region
Stephanie Ross Chief Scientist, Watchstander, USGS Western Region
Brian Edwards Chief Scientist, USGS Western Region
Larry Kooker Electronics Technician, USGS Western Region
Kevin O'Toole Mechanical Technician, USGS Western Region
Ray Sliter Multi-channel Seismic Watchstander, USGS Western Region
Becky Cooper Watchstander Navigation, USGS Western Region
Pat Hart Multi-channel Seismic Watchstander, USGS Western Region
Jon Childs Multi-channel Seismic Watchstander, USGS Western Region
Dave Gonzales Electronics Technician, USGS Western Region
Jane Reid Watchstander, USGS Western Region
Dave Hogg Electronics Technician, USGS Western Region
Tim Elfers Mechanical Technician, USGS Western Region
Walt Olson Mechanical Technician, USGS Western Region
Martin Uyesugi Huntec Engineer Watchstander, Geoforce Consultants
Annie Douglas Mammal Observer, Cascadia Research
Lisa Baraff Mammal Observer, Cascadia Research
Dave Ellifrit Mammal Observer, Cascadia Research
Todd Chandler Mammal Observer Team Leader, Cascadia Research
Jr Veldink Mammal Observer, Cascadia Research
Dick Corrigan Captain, Northwind Shipyards
Ted Blinkers Captain, Northwind Shipyards
Jeff Stringer Mate, Northwind Shipyards
James Stacey Engineer, Northwind Shipyards
Ricky Labrador Cook, Northwind Shipyards
Rich Soderblom Deck Hand, Northwind Shipyards
Brad Scarrott Minisparker Technician, Applied Acoustic Engineering
Equipment Used
12khz
Huntec
uniboom
Geopulse
minisparker
minisparker
GPS
YoNav
24channel
sparker
Purpose
leg 1: identify fault and landslide hazards in the offshore
area of Southern California. The study areas were selected to
(a) obtain multichannel and high-resolution seismic-reflection data
    inside the 3-mile limit between Port Hueneme and the Mexican border; and
(b) extend data coverage within a relatively unsurveyed segment of the
    margin seaward of the shelf between Dana Point and San Diego,
    California.

leg 2: to obtain multichannel and high-resolution data in
       Los Angeles/Long Beach harbor and adjacent shelf for study of
       salt-water intrusion in local aquifers.
Information to be Derived
Identify and map active and potentially active faults, folds,
and submarine slide-prone areas that may threaten densely populated
areas of Southern California.  Map pathways of salt-water intrusion
into local aquifers critical to the large population of the greater
Los Angeles metropolitan area.
Summary
Extensive high-resolution geopulse and huntec data were
collected within the 3-mile limit and farther seaward in areas
sparsely surveyed during previous operations, as well as in the
Los Angeles / Long Beach harbor and adjacent shelf. Problems with
the minisparker power supplies prevented its use during much of
the cruise, despite unflagging efforts by the shipboard engineering
and electronic technicians.  In the end, only 36 hours of multichannel
minisparker data were collected in the harbor/shelf area and an
additional 10 hours in the shelf and slope area east of Port Hueneme.
1200 line-km geopulse (960 hazards, 240 aquifers)
1400 line-km huntec (1300 hazards, 100 aquifers)
470 line-km minisparker (100 hazards, 370 aquifers)
Publications
Ryan, H.F., Conrad, J.E., Paull, C.K., and McGann, M., 2012, Slip Rate on the
San Diego Trough Fault Zone, Inner California Borderland, and the 1986
Oceanside Earthquake Swarm Revisited: Bulletin of the Seismological Society of
America, Vol. 102, No. 6, pp. 2300-2312; URL:
http://dx.doi.org/10.1785/0120110317 

Gutmacher, Christina E., Normark, William R., Ross, Stephanie L., Edwards,
Brian, Sliter, Ray, Hart, Patrick, Cooper, Becky, Childs, Jon, and Reid,
Jane, 2000, Cruise report for A1-00-SC Southern California earthquake hazards
project, Part A: U.S. Geological Survey Open-File Report 00-516:
walrus.wr.usgs.gov/reportsof00-516 Fisher, Michael, Normark, William, Langenheim, Victoria, Calvert, Andrew and Sliter, Ray, 2004, Marine geology and earthquake hazards of the San Pedro shelf region, Southern California: U.S. Geological Survey Professional Paper 1687, URL: http://pubs.usgs.gov/pp/pp1687/ Wolf, Stephen C., and Gutmacher, Christina E., 2004, Geologic and bathymetric reconnaissance overview of the San Pedro Shelf region, Southern California: U.S. Geological Survey Open-File Report 2004-1049, 7 sheets, scales range from 1:43,000 to 1:174,000, URL: http://pubs.usgs.gov/of/2004/1049/
Got Help? For A-1-00-SC, we would appreciate any information on -- contract, days at sea, dive count, funding, kms of navigation, national plan, NGDC Info, notes, owner, project number, scanned materials, seismic description, station count, station description, submersible, tabulated info.
Type Webpage KMZ Arc         Metadata        
Bathymetry data bath    
Metadata data     txt  data  FAQ  xml
Navigation data 065_410_sparker_multichannel.nav
nav
   
Seismic data geopulse.seis
huntec.seis
mcs.seis
seis
sparker.seis
   
Times   065.times
065_410_sparker_multichannel.times
   

A-1-00-SC location map of where navigation 

equipment operated
A-1-00-SC location map of where navigation 

equipment operated

 
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