AKA: TN 076
Other ID: T-1-98-PS,T-2-98-PS
Status: Completed
Organization(s): USGS, Pacific Coastal and Marine Science Center
Funding Program(s): Seismic Hazards Investigation in Puget Sound (SHIPS) (MU263)
Principal Investigator(s): Michael Fisher
Affiliate Investigator(s):
Information Specialist(s): Michael Hamer
Data Type(s): Location-Elevation: Navigation, Seismics: Air Gun / Water Gun, Seismics: Multichannel, Seismics: Ocean Bottom Seismometer, Sonar: Single Beam
Scientific Purpose/Goals:
Vehicle(s):
Start Port/Location: UW Seattle, WA
End Port/Location: UW Seattle, WA
Start Date: 1998-03-10
End Date: 1998-03-24
Equipment Used: YoNav, 96channel, integratednavigation, bottomseismometer, bathymetry, airgun, GPS
Information to be Derived:
Summary of Activity and Data Gathered:
Staff: Jonathan Childs, Guy Cochrane, Alan Cooper, Michael Hamer, Dave Hogg, Al McClenaghan, Gerry O'Brien, Walt Olson, Kevin O'Toole, Bill Robinson, Hal Williams
Affiliate Staff:
Darcy Bristow (Cascadia Research) - Unspecified
John Calambokidis (Cascadia Research) - Unspecified
Satinder Chopra (Geol Survey Of Canada) - Unspecified
Annie Douglass (Cascadia Research) - Unspecified
R. Michael Grogan (Univ Of Washington) - Unspecified
Diane Lambourn (Cascadia Research) - Unspecified
William Martin (Univ Of Washington) - Unspecified
Jen Quan (Cascadia Research) - Unspecified
Lisa Schlenter (Cascadia Research) - Unspecified
Steve Osmek - Unspecified
Notes: Physical data holdings
See also T-2-98-PS (Tully) the external NEHRP, Urban Hazards, and the Coastal and Marine Programs all contributed. Coastal and Marine has the honor of having chipped in the greatest share. Permission to use airguns in Puget Sound and the Straits of Juan de Fuca and Georgia, which are home to many marine mammals, took almost a year to obtain. Part of the stipulations in the permit are that when the airguns are operating, marine mammal biologists must remain vigilant aboard both survey ships and aboard an aircraft. Eleven biologists will work closely with geologists to obtain seismic data while minimizing harm to marine life. These biologists have responsibility for shutting off the array whenever a marine mammal enters a specific zone around the airguns where it might suffer hearing damage. The size of the protective zone varies with mammal species, hence the need for expert assistance. With close cooperation, we will obtain three-dimensional seismic data and information on the behavior of marine mammals in response to airgun signals. The data about mammals will help us and other groups plan the next airgun surveys; the seismic data will help city planners allocate scarce funds for seismic strengthening of important infrastructure. Crew from Marfac CMG and EQ leave early next week. Mike Fisher
Staff information imported from InfoBank
Mike Fisher (USGS Western Region) - Chief Scientist
Alan Cooper (USGS Western Region) - Geologist
Jon Childs (USGS Western Region) - Geophysicist
Guy Cochrane (USGS Western Region) - Geophysicist
Mike Hamer (USGS Western Region) - Data Technician
Kevin O'Toole (USGS Western Region) - Marine Tech
Gerry O'Brien (USGS Western Region) - Marine Tech
Walt Olsen (USGS Western Region) - Marine Tech
Hal Williams (USGS Western Region) - Marine Tech
Dave Hogg (USGS Western Region) - Electronic Tech
Bill Robinson (USGS Western Region) - Electronic Engineer
Darcy Bristow (Cascadia Research) - Unspecified
John Calambokidis (Cascadia Research) - Unspecified
Satinder Chopra (Geol Survey Of Canada) - Unspecified
Annie Douglass (Cascadia Research) - Unspecified
R. Michael Grogan (Univ Of Washington) - Unspecified
Diane Lambourn (Cascadia Research) - Unspecified
William Martin (Univ Of Washington) - Unspecified
Jen Quan (Cascadia Research) - Unspecified
Lisa Schlenter (Cascadia Research) - Unspecified
Steve Osmek - Unspecified
Al McClenaghan - Master
Location:
Washington
| Boundaries | |||
|---|---|---|---|
| North: 49.91054 | South: 47.11676 | West: -125.046 | East: -122.21873 |
Platform(s):
 Thomas G Thompson |
Fisher, M.A., Hyndman, R.D., Johnson, S.Y., Brocher, T.M., Crosson, R.S., Wells, R.E., Calvert, A.J., ten Brink, U.S., 2005, Crustal structure and earthquake hazards of the subduction zone in southwestern British Columbia and western Washington, Chapter C in Kayen, R., ed., Earthquake hazards of the Pacific Northwest coastal and marine regions: U.S. Geological Survey Professional Paper 1661-C, doi: 10.3133/pp1661C.
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| YoNav | --- | Navigation | |
| 96channel | --- | Multichannel | stk.sgy.zip data t-1-98-ps.stk.sgy.zip |
| integratednavigation | --- | Navigation | Best file with nav in ArcInfo E00 format Integrated navigation (SINS) data t-1-98-ps.053_degree Integrated navigation (SINS) data t-1-98-ps.051 Integrated navigation (SINS) data t-1-98-ps.053_airguns Integrated navigation (SINS) data t-1-98-ps.053.tck Eotvos/course/speed/distance data t-1-98-ps.073 Lines Integrated navigation (SINS) data t-1-98-ps.053 (Provisional best file) |
| bottomseismometer | --- | Ocean Bottom Seismometer | |
| bathymetry | --- | Single Beam | Raw depth (bathymetry) data t-1-98-ps.300 Raw depth (bathymetry) data t-1-98-ps.300_053 (Provisional best file) |
| airgun | --- | Air Gun / Water Gun | |
| GPS | --- | Navigation |
