USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1979-017-FA

Other ID: Cruise II, Leg II; RP-4-SU-79B

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Bruce Ambuter

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Seismics: Sub Bottom Profiler, Seismics: Air Gun / Water Gun, Seismics: Sonobouy, Seismics: Ocean Bottom Seismometer, Location-Elevation: Navigation

Scientific Purpose/Goals: Detect and locate earthquake activity in the northeast Gulf of Alaska (NEGOA). Obtain measurements of sea floor accelerations accompanying both strong and weak earthquakes. Demonstrate and evaluate the effectiveness of the USGS OBIPs when used in the seismic refraction mode.


Start Port/Location:

End Port/Location:

Start Date: 1979-07-19

End Date: 1979-07-27

Equipment Used: 3.5 kHz, Ocean Bottom Seismometer, Air gun, Seismic refraction, Loran-C

Information to be Derived:

Summary of Activity and Data Gathered: OBIP deployments - 13; OBIP recoveries - 8; Seismic refraction - 3 lines, 165 km; Bathymetry/sub-bottom profiling - 580 km; XBT launches - 12; Shipek bottom samples - 8.

Staff: Raymond E. Davis, Bruce Ambuter

Affiliate Staff:
Dr. Mark Holmes
USGS-Seattle; Joe Edwards
USGS-Menlo Park



Yakutat Bay, northeastern Gulf of Alaska, Alaska, United States, North America, North Pacific;

North: 60 South: 57 West: -148 East: -142





Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
3.5 kHz --- Sub Bottom Profiler
1979-017-FA-SE-002 ( microfilm of )
1979-017-FA-SE-001 ( Collection of paper record displays of seismic data( 3.5K) for lines )
Air gun --- Air Gun / Water Gun
Seismic refraction --- Sonobouy
Ocean Bottom Seismometer --- Ocean Bottom Seismometer
Loran-C --- Navigation
1979-017-FA-LN-001-01 ( Scans of various trackmaps in .pdf and .tif formats.)
1979-017-FA-LN-001 ( Navigation trackline plot for field activity 79017)