Thomas Pratt photo
Thomas L. Pratt
Research Geophysicist, U. S. Geological Survey
Affiliate Professor, School of Oceanography, University of Washington
Affiliate Professor, Department of Earth and Space Sciences, University of Washington


Office :
U. S. Geological Survey, University of Washington
School of Oceanography, Box 357940
Seattle, WA 98195


Phone :  206-543-7358
Cell :      206-919-8773
Fax :      206-553-6073
email :  tpratt@ocean.washington.edu         
(tpratt@usgs.gov gets forwarded here)


Research Interests
Earthquake hazard assessment, geology of the Pacific Northwest, deformation above active faults, reflection seismology.
Related links
USGS Pacific Northwest Website
Pacific Northwest Seismic Network

Education
Cornell University                                       Geology                  B.A., 1980
Virginia Tech                                             Geophysics             Ph.D., 1986


Positions Held
Post-doctoral researcher, Cornell University, Ithaca, NY                    1986-88
Research Associate, Cornell University, Ithaca, NY                          1988-91
Adjunct Faculty, Geophysics Department, Colorado School Mines    1991-1993
Research Geophysicist, US Geological Survey, Golden, CO             1991-1994
Research Geophysicist, U.S. Geological Survey, Seattle, WA          1994-present
Affiliate, School of Oceanography, Univ. of WA, Seattle, WA            1994-2004
Visiting Professor, Earthquake Res. Inst., Univ. of Tokyo                  Summer 2000
Affiliate Prof., Earth & Space Sciences, Univ. of WA, Seattle            2004-present
Affiliate Professor, School of Oceanography, Univ. of WA                 2004-present
Recent/Current Research
Active faults in the U.S. Pacific Northwest
Location, kinematics and earthquake potential of the Seattle Fault (with Kathy Troost, GeopMapNW)
Structure of the Saddle Mountain fault, eastern Washington State (with Brian Sherrod, USGS, Seattle)
The western extension of the Seattle fault zone: Puget Sound to the Olympic Peninsula (With Lee Liberty and Andrew Lamb, Boise State)

Paleoseismology of Blind Thrust faults, Southen California.
With James Dolan (USC) and John Shaw (Harvard)

Megathrust Splay faults, Alaska subduction zone
With Lee Liberty (Boise State) and Peter Haeussler (USGS, Alaska)

Kinematics of the New Madrid Seismic Zone
.
With Robert Williams, Bill Stephenson and Jack Odum (USGS, Goden)

Site response and shallow velocities, Pacific Northwest.



 
Professional Organization Activities
IRIS PASSCAL Standing Committee, 1994-1998 and 2007-2010
IRIS Future Instrumentation Committee, 1997-2001
Co-chair, IRIS Seismic Sources Committee, 2009-2010
Writing group, PASSCAL portion of IRIS 3-year proposal, Spring 2010
American Geophysical Union, 1984-present
      Associate Editor, Journal of Geophysical Research (1991-1995).
Seismological Society of America, 1998-present
      Awards Committee member, 2010-present
      Chair, Best Student Presentation committee, 2010 and 2011
Northwest Geological Society, 1994-present
Geological Society of America, 1988-present



Panel & Workshop Activities
USGS Performance Panels
Member, Branch of Geologic Risk Assessment, Promotions Panel, 1992
Chair, Branch of Geologic Risk Assessment, Promotions Panel, 1993
Member, Branch of Earthquake and Landslide Hazards, Promotions Panel, 1995
Member, Western Earthquake Hazards Team, Promotions Panel, 1999
Chair, Western Earthquake Hazards Team, Promotions Panel, 2000


Review Panels 
USGS, National Earthquake Hazards Reduction Program (NEHRP) external proposal review panels:
      Member, Pacific Northwest review panels, 1995, 1996
      Member, Central U.S. review panels, 1999, 2005
      Convener, Pacific Northwest review panels, 2006-present
USGS Venture Capital Proposals, Review Panel, 2005.
Member, Faculty Search Committee, Reflection Seismology position, Colorado School of Mines, 1992


Teaching (University of Washington)
ESS467 / Ocean412: Seismic Exploration - next offered winter 2014. (syllabus)
Publications
In Press or Preparation

Pratt, T.L., Williams, R.A., Odum, J.K., and Stephenson, R.A., 2012, Origin of the Blytheville Arch, and Long-term Displacement on the New Madrid Seismic Zone, Central U.S., Geological Society of America Special Paper "Recent Advances in North American Paleoseismology and Neotectonics east of the Rockies and Use of the Data in Risk Assessment and Policy", edited by Randy Cox, Oliver Boyd, Jacques Locat and Tish Tuttle, in press.

Lamb, A.P., Liberty, L.M., Blakely, R.J. and Pratt, T.L., The western extension of the Seattle fault zone: Puget Sound to the Olympic Peninsula, in press Geosphere.


Pratt, T.L.
, Splay-fault origin for the Yakima fold-and-thrust belt, Washington State, submitted to G-Cubed.

Pratt, T.L., and Troost, K.G., Location, kinematics and earthquake potential of the Seattle Fault, for submittal to Geosphere.


Hubbard, J., Shaw, J.H., Dolan, J., Pratt, T.L., Rockwell, T.K., and McAuliffe, L., Structure and seismic hazard of the Ventura Avenue Anticline and Ventura fault, California: Prospect for large, multi-segment ruptures in the western Transvere Ranges, in preparation.






Pacific Northwest and Alaska Earthquake Hazards

Clement, C.R., Pratt, T.L., Holmes, M.L., and Sherrod, B.L., 2010, High-Resolution Seismic Reflection Imaging of Growth Folding and Shallow Faults beneath the Southern Puget Lowland, Washington State, Bulletin Seismological Society America, v. 100; no. 4; p. 1710-1723. (pdf)

Barnett, E.A., Haugerud, R.A., Sherrod, B.L., Weaver, C.S., Pratt, T.L., and Blakely, R.J., 2010, Preliminary atlas of active shallow tectonic deformation in the Puget Lowland, Washington,  U.S. Geological Survey Open_File Report 2010-1149. (http://pubs.usgs.gov/of/2010/1149/)

Liberty, L.M., Pratt, T.L., Lyle, M., and Madin, I.P., 2009, Seismic Reflection Imaging of Complex Structures beneath Upper Klamath Lake, Oregon: Neotectonic Implications, in Oldow, J.S. and Cashman, P.H., eds, Late Cenozoic Structure and Evolution of the Great Basin–Sierra Nevada Transition: Geological Society of America Special Paper 447, p. 71-82. (http://specialpapers.gsapubs.org/content/447/71.abstract)

Liberty, L.M. and Pratt, T.L., 2008, Structure of the Eastern Seattle Fault Zone, Washington State: New Insights from Seismic Reflection Data, Bulletin of the Seismological Society of America, v. 98; no. 4; p. 1681-1695; DOI: 10.1785/0120070145. (pdf)

Liberty, L.M. and Pratt, T.L., 2006, Recent high-resolution seismic reflection studies of active faults in the Puget Lowland, Proceedings of the 2006 Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP), p. 254-259. (pdf)

Pratt, T.L., Weaver, C.S., Brocher, T.M., Parsons, T., Fisher, M.A., Creager, K.C., Crosson, R.S., Hyndman, R.D., Spence, G., Trehu, A.M., Miller, K.C., and ten Brink, U.S., 2002, Understanding the seismotectonics of the Cascadia subduction zone: Overview and recent seismic work, in Fujinawa, Y., and Toshida, A., editors, Seismotectonics in Convergent Plate Boundary, Terra Scientific Publishing, Tokyo, p. 25-36. (pdf)

Creager, K., Crosson, R., Pratt, T., and Weaver, C., 2001, The Nisqually Earthquake of February 28, 2001, Preliminary Reconnaissance Report: Seismological Aspects, Earthquake Engineering Research Institute, p. 2-5.

Pratt, T.L., Odum, J., Stephenson, W., Williams, R., Dadisman, S., Holmes, M., and Haug, B., 2001, Late Pleistocene and Holocene tectonics of the Portland Basin, Oregon and Washington, from high-resolution seismic profiling, Bulletin of the Seismological Society of America, v. 91, p. 637-650. (pdf)

Haeussler, P., Bruhn, R.L., and Pratt, T.L., 2000, Quaternary Deformation in Upper Cook Inlet Basin, Alaska, Geological Society of America Bulletin, v. 112, p. 1414-1429. (http://bulletin.geoscienceworld.org/cgi/content/abstract/112/9/1414)

Brocher, T.M., Pratt, T.L., Weaver, C.S., Frankel, A.D., Trehu, A.M., Snelson, C.M., Miller, K.C., Harder, S.H., tenBrink, U.S., Creager, K.C., Crosson, R.S., and Steele, W., 2000, Urban seismic experiments investigate the Seattle fault and Seattle basin, EOS Transactions American Geophysical Union, v. 81, p. 545, 551-552.

Fisher, M.A., Brocher, T.M., Hyndman, R.D., Trehu, A.M., Weaver, C.S., Creager, K.C., Crosson, R.S., Parsons, T., Cooper, A.K., Mosher, D., Spence, G., Zelt, B.C., Hammer, P.T., tenBrink, U., Pratt, T.L., Miller, K.C., Childs, J.R., Cochrane, G.R., Chopra, S., and Walia, R., 1999, Seismic survey probes urban earthquake hazards in Pacific Northwest, EOS Transactions American Geophysical Union, v. 80, no. 2, p. 13-17.

Fisher, M.A., Brocher, T.M., Gibbons, H., Weaver, C.S., Parsons, T., and Pratt, T.L., 1999, Scientists use sound waves to probe earthquake hazards in the Puget Sound area, U. S. Geological Survey Information Sheet.
(pdf)

Pratt, T.L., Johnson, S.Y., Potter, C.J., Stephenson, W.J., and Finn, C., 1997, Seismic Reflection Images beneath
Puget Sound, Western Washington State: The Puget Lowland Thrust Sheet hypothesis, Journal of Geophysical Research, v. 102, no. B12, p. 27,469-27,489. (pdf)

Pratt, T.L., 1995, The Seattle Fault, Gaea, Association for Women Geoscientists, v. XVIII, No. 3&4, May-August, 1995 (also printed in Association for Women Geoscientists, Puget Sound Chapter Newsletter, Spring 1995).





Ground Shaking in the Puget Sound Region


Snelson, C.M., Brocher, T.M., Miller, K.C., Pratt, T.L. and Tréhu, A.M., 2007, Seismic Amplification Within the Seattle Basin, Washington State: Insights from SHIPS Seismic Tomography Experiments, Bulletin of the Seismological Society of America, v. 97; no. 5; p. 1432-1448; DOI: 10.1785/0120050204. (pdf)

Pratt, T.L., 2006, Basin effects and ground shaking in the Puget Lowland, Washington State, USA, Bulletin of the Earthquake Research Institute 81, 283-289. (pdf)

Li, Q., Wilcock, W.S.D., Pratt, T.L., Snelson, C.M., and Brocher, T.M., 2006, Seismic attenuation structure of the Seattle basin, Washington State, from explosive-source refraction data, Bulletin of the Seismological Society of America, v. 96, p. 553-571. (pdf)

Barberopoulou, A., Qamar, A., Pratt, T.L., and Steele, W., 2006, Long-Period Effects of the Denali Earthquake on Water Bodies in the Puget Lowland: Observations and Modeling, Bulletin of the Seismological Society of America, v. 96, p. 519-535. (pdf)

Stephenson, W. J., A. D. Frankel, J. K. Odum, R. A. Williams, and T. L. Pratt, 2006, Toward resolving an earthquake ground motion mystery in west Seattle, Washington State: Shallow seismic focusing may cause anomalous chimney damage, Geophys. Res. Lett., 33, L06316, doi:10.1029/2005GL025037. (pdf)

Pratt, T.L., and Brocher, T.M., 2006, Site response and attenuation in the Puget Lowland, Washington State, Bulletin of the Seismological Society of America, v. 96, p. 536-552. (pdf)

Pratt, T.L., 2006, Site response, basin effects, and attenuation in the Puget Lowland, Washington State, USA, Proceedings of the 2006 Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP), p. 274-282. (pdf)

Barberopoulou, A., Qamar, A., Pratt, T.L., Creager, K.C., and Steele, W.P., 2004, Local amplification of seismic waves from the Denali Earthquake and damaging seiches in Lake Union, Seattle, Washington, Geophysical Research Letters, v. 31, L03607, doi: 10.1029/2003GL018569. (http://www.agu.org/journals/ABS/2004/2003GL018569.shtml)

Pratt, T.L., Brocher, T.M., Weaver, C.S., Miller, K.C., Tréhu, A.M., Creager, K.C., and Crosson, R.S., 2003, Amplification of seismic waves by the Seattle basin, Washington State, Bulletin of the Seismological Society of America, v. 93, p. 533-545. (pdf)




Southern California

Pratt, T.L.
, and Dolan, J. F., 2010, Comment on
Near-Surface Location, Geometry, and Velocities of the Santa Monica Fault Zone, Los Angeles, California,” Bulletin of the Seismological Society of America, v. 100; no. 5A; p. 2329-2337. (pdf)

Leon, L. A., J. F. Dolan, J. H. Shaw, and T. L. Pratt, 2009, Evidence for large Holocene Earthquakes on the Compton Thrust Fault, Los Angeles, California, Journal of Geophysical Research, v. 114, B12305 doi: 10.1029/2008JB00619. (http://www.agu.org/journals/ABS/2009/2008JB006129.shtml)

Leon, L. A., S. A. Christofferson, J. F. Dolan, J. H. Shaw, and T. L. Pratt, 2007, Earthquake-by-earthquake fold growth above the Puente Hills blind thrust fault, Los Angeles, California: Implications for fold kinematics and seismic hazard, J. Geophys. Res., 112, B03S03, doi:10.1029/2006JB004461. (http://www.agu.org/journals/ABS/2007/2006JB004461.shtml)

Pratt, T.L., Shaw, J. H., Dolan, J. F., Christofferson, S., Williams, R. A., Odum, J. K., and Plesch, A., 2002, Shallow seismic imaging of folds above the Puente Hills blind-thrust fault, Los Angeles, California, Geophysical Research Letters, v. 29, no. 9, p. 18-1 – 18-4 (May 8, 2002). (http://www.agu.org/journals/ABS/2002/2001GL014313.shtml)

Shaw, J. H., Plesch, A., Dolan, J.F., Pratt, T.L., and Fiore, P., 2002, Puente Hills blind-thrust system, Los Angeles, California, Bulletin of the Seismological Society of America, v. 92, p. 2946-2960. (pdf)

Pratt, T.L., Dolan, J.F., Odum, J.K., Stephenson, W.J., Williams, R.A., and Templeton, M.E., 1998, Multi-scale imaging of active fault zones for hazard assessment: A case study of the Santa Monica fault zone, Los Angeles, California, Geophysics, v. 63, no. 2, p. 1-11.
(http://geophysics.geoscienceworld.org/cgi/content/abstract/63/2/479)

Dolan, J.F., and Pratt, T.L., 1997, Shallow expression of the Santa Monica fault zone, west Los Angeles, California, from high-resolution seismic reflection imaging and trenching, Geophysical Research Letters, v. 24, p. 2051-2054. (http://www.agu.org/journals/ABS/1997/97GL01940.shtml)




Central and Eastern U.S.


Pratt, T.L., 2012, Kinematics of the New Madrid Seismic zone, Central United States, based on stepover models, Geology, v. 40, p. 371-374. doi:10.1130/G32624.1. http://geology.geoscienceworld.org/cgi/content/full/40/4/371?ijkey=tVl17

Odum, J.K., Stephenson, W.J., Williams, R.A., Worley, D.M., Toth, D.J., Spechler, R.M., and Pratt, T.L., 1999, Land based high-resolution seismic reflection image of a karst solution pipe on Fort George Island, Duval Co., northeastern
Florida, Journal of Environmental and Engineering Geophysics, v. 4, p. 251-261. (http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JEEGXX000004000004000251000001&idtype=cvips&gifs=yes&ref=no)

Stephenson, W.J., Odum, J.K., Williams, R.A., Pratt, T.L., Harrison, R.W., and Hoffman, D., 1999, Deformation and Quaternary faulting in southeast Missouri across the Commerce Geophysical Lineament, Bulletin of the Seismological Society of America, v. 89, p. 140-155. (pdf)

Odum, J.K., Stephenson, W.J., Williams, R.A., Toth, D.J., Spechler, R.M., and Pratt, T.L., 1998, Land-based high-resolution seismic reflection image of a karst solution pipe on Fort George island, Duval county northeastern Florida, Proceedings Environmental and Engineering Geophysical Society, Chicago, Illinois, March 22-26, 1998, p. 285-294.

Odum, J.K., Stephenson, W.J., Shedlock, K.M., and Pratt, T.L., 1998, Near-surface structural model for deformation associated with the February 7, 1812 New Madrid, Missouri, earthquake, Geological Society of America Bulletin, v. 110, no. 2, p. 149-162. (http://gsabulletin.gsapubs.org/content/110/2/149.abstract)

Odum, Jack K., Stephenson, William J., Williams, Robert A., Worley, David M., Toth, David J., Spechler, Rick M., and Pratt, T. L., 1997, Land-based high-resolution seismic reflection surveys of seven sites in Duval and St. Johns counties, northeastern Florida, U. S. Geological Survey Open-File Report 97-718. (http://pubs.er.usgs.gov/publication/ofr97718)

Williams, R.A., Odum, J.K., Pratt, T.L., Shedlock, K.M., and Stephenson, W.J., 1995, Seismic Surveys for earthquake hazard reduction in the New Madrid seismic zone, northeastern Arkansas: The Leading Edge, v. 14, p. 30-34.

Hildenbrand, T.G., Schweig, E.S., Catchings, R.D., Langenheim, V.E., Mooney, W.D., Pratt, T.L., and Stanley, W.D., 1995, Crustal geophysics gives insight into New Madrid Seismic Zone, EOS Transactions, American Geophysical Union, v. 76, no. 7, p.65-69.


Pratt, T.L., 1994, How old is the New Madrid Seismic Zone?: Seismological Research Letters, v. 65, p. 172-179. (pdf)

Pratt, T.L., Brown, L.D., and Mondary, J., 1993, AVO and fluids in the deep crust: A COCORP case study, The Leading Edge, v. 12, p. 186-192.

Pratt, T.L.,  Brown, L.D., Mondary, J., Christensen, N.I., Danbom, S., 1993, Crustal structure and deep reflector properties: Wide-angle shear and compressional-wave studies of the midcrustal Surrency Bright Spot beneath southeastern Georgia: Journal of Geophys. Research, v. 98, p. 17,723-17,735. (http://www.agu.org/journals/ABS/1993/93JB01817.shtml)

Pratt, T.L., Hauser, E.C., and Nelson, K.D., 1992, Widespread buried Precambrian layered rocks beneath the U.S. midcontinent: Evidence for large Proterozoic depositional basins: American Association of Petroleum Geologists Bulletin, v. 76, p. 1384-1401. (http://payperview.datapages.com/data/open/offer.do?target=%2Fbulletns%2F1992-93%2Fdata%2Fpg%2F0076%2F0009%2F0000%2F1384.htm)

Pratt, T.L., Hauser, E.C., Hearn, T., and Reston, T., 1991, Reflection polarity of the midcrustal Surrency bright spot beneath southeastern Georgia:  Testing the fluid hypothesis:  Journal of Geophysical Research, v. 96, p. 10,145-10,158. (http://www.agu.org/journals/ABS/1991/91JB00766.shtml)

Pratt, T.L., Hauser, E.C., Hearn, T., and Reston, T., 1991, Seismic reflection investigations of the Surrency Bright Spot beneath the southern Appalachians, USA:  in Meissner, R., Brown, L., Durbaum, H.J., Franke, W., Fuchs, K., and Seifert, F., editors, Continental Lithosphere: Deep Seismic Reflections, American Geophysical Union Geodynamics Series no. 22, p. 1-7.

Costain, J.K., Hatcher, R.D., Jr., Coruh, C., Pratt, T.L., Taylor, S.R., Litehiser, J.J., and Zietz, I., 1990, Geophysical characteristics of the Appalachian crust:  The Geological Society of America, Boulder, Colorado, Decade of North American Geology, v. F-2 (The Appalachian-Ouachita Orogen in the United States), p. 385-416.

Culotta, R.C., Pratt, T., and Oliver, J., 1990, A tale of two sutures: COCORP's deep seismic surveys of the
Grenville Province in the eastern U.S. midcontinent: Geology, v. 18, p. 646-649. (http://geology.geoscienceworld.org/cgi/content/abstract/18/7/646)

Pratt, T.L., Hauser, E.C., and Nelson, K.D., 1990, Reply to comment on "Major Proterozoic basement features of the eastern midcontinent of
North America from recent COCORP profiling": Geology, v. 18, p. 378-379. (http://geology.geoscienceworld.org/cgi/content/abstract/18/4/378)

Pratt, T., Brown, L., and Hearn, T., 1989, Acoustic imaging of the North American midcontinent:  Forefronts, v. 5, no. 5, p. 4-7.

Pratt, T.L., Culotta, R., Hauser, E., Nelson, K.D., Brown, L.D., Kaufman, S., Oliver, J.E., and Hinze, W., 1989, Major Proterozoic basement features of the eastern midcontinent of North America revealed by recent COCORP profiling: Geology, v. 17, p. 505-509.
(http://geology.geoscienceworld.org/cgi/content/abstract/18/4/378)

Gates, A.E., Speer, J.A., and Pratt, T.L., 1988, The Alleghanian southern Appalachian Piedmont:  A transpressional model: Tectonics, v. 7, p. 1307-1324. (http://europa.agu.org/?uri=/journals/tc/TC007i006p01307.xml&view=article)

Pratt, T.L., Coruh, C., Costain, J.K., and Glover, L.,
III, 1988, A geophysical study of the Earth's crust in central Virginia: implications for Appalachian crustal structure:  Journal of Geophysical Research, v. 93, p. 6649-6667. (http://www.agu.org/journals/ABS/1988/JB093iB06p06649.shtml)

Coruh, C., Costain, J.K., Hatcher, R.D., Jr., Pratt, T.L., Williams, R.T., and Phinney, R.A., 1987, Results from regional Vibroseis profiling: Appalachian ultra-deep core hole site study: Geophysical Journal of the Royal Astronomical Society, v. 89, p. 147-156.

Pratt, T.L., Coruh, C., and Costain, J.K., 1987, Lower crustal reflections in central
Virginia, USA:  Geophysical Journal of the Royal Astronomical Society, v. 89, p. 163-170.


Pratt, T.L., Costain, J.K., Coruh, C., Glover, L., III, and Robinson, E.S., 1985, Geophysical evidence for an allochthonous Alleghanian(?) granitoid beneath the basement surface of the Coastal Plain near Lumberton, North Carolina:  Geological Society of America Bulletin, v. 96, p. 1070-1076.  (http://bulletin.geoscienceworld.org/cgi/content/abstract/96/8/1070)



Panama

Pratt, T.L.
, Holmes, M., Schweig, E.S., Gomberg, J., and Cowan, H.A., 2003, High resolution seismic imaging of faults beneath Limón Bay, northern Panama Canal, Republic of Panama, Tectonophysics, v. 368, p. 211-227.


Pratt, T.L.
, Holmes, M., Stephenson, W., and Odum, J., 1999, Results of 1997 high-resolution seismic reflection profiling for evaluation of the seismic hazard at the Gatún Dam, Republic of Panama, U. S. Geological Survey Administrative Report, 43 pp. plus appendices.


Pratt, T.L.
, Holmes, M., Stephenson, W., and Odum, J., 1999, Results of 1997 high-resolution seismic reflection profiling in Gaillard Cut, Republic of Panama, for evaluation of the landslide hazard in the Panama Canal, U. S. Geological Survey Administrative Report, 25 pp. plus appendices.

Schweig, E., Cowan, H., Gomberg, J., Pratt, T., and TenBrink, A., 1999, Design earthquakes for the evaluation of seismic hazard at the Gatún Dam and vicinity, Final Report, U. S. Geological Survey Administrative Report, 60 pp.

Pratt, T., Holmes, M., Schweig, E., and Gomberg, J., 1996, Results of high-resolution seismic reflection profiling in Gatún Lake and Limón Bay, Republic of Panama, for evaluation of the seismic hazard at the Gatún Dam and vicinity, Report to the Panama Canal Commission, 51 pp. plus appendices (U. S. Geological Survey Administrative Report).

Schweig, E., Gomberg, J., Pratt, T., and Holmes, M., 1996, Results and recommendations from USGS Reconnaissance study of design earthquakes for evaluation of the seismic hazard at the Gatún Dam and vicinity, Report to the Panama Canal Commission, 21 pp., 1 plate (U. S. Geological Survey Administrative Report).
 



Technology

Pratt, T.L. and Levander, A., 2010, Active Seismic Sources within IRIS: Report from the IRIS committee exploring an Active Source Facility, 21 pp. (pdf)
 
Yelin, T. and Pratt, T.L., 2010, Comprehensive Continuity of Operations Plan for the Seattle Field Office of the U. S. Geological Survey Earthquake Science Center, 18 pp.

Pratt, T.L.
, 2009, Finding trapped miners using a prototype seismic recording system made from music-recording hardware, U. S. Geological Survey Open File Report 2009-1095, 38p. (http://pubs.usgs.gov/of/2009/1095/)

Pratt, T.L.
, and Snelson, C.S., 2008, Recommendations for IRIS providing seismic sources to the university/government community, 15 pp. (pdf)

Pratt, T.L., Templeton, M.E., Frost, R., and Shafer, A., 2006, Variations in short-period geophone responses in temporary seismic arrays, Seismological Research Letters, v. 77, p. 377-388. (pdf)

Liberty, L.M., Pratt, T.L., and Hess, S.S., 2006, Seeing through the noise: seismic reflection profiling in urban areas, Proceedings of the 2006 Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP), p. 492-498. (pdf)

Williams, R.A., Pratt, T.L., Odum, J.K., Stephenson, W.J., and Worley, D.M., 1995, Echo-sounding method aids earthquake hazard studies, U. S. Geological Survey Fact Sheet FS132-95, 1 pp.

Williams, R.A., and Pratt, T.L., 1995, Detection of the base of the Slumgullion landslide, Colorado, by seismic reflection and refraction methods, in Varnes, D.J., and Savage, W.Z., The Slumgullion Earth Flow: A Large Scale Natural Laboratory, U. S. Geol. Survey Bulletin, Chapter 13, p. 77-83.


Stephenson, W.J., Odum, J., Shedlock, K.M., Pratt, T.L., and Williams, R.A., 1992, Mini-Sosie high-resolution seismic method: Its adaptability to the urban environment and a comparison to Vibroseis:, EOS Transactions American Geophysical Union, v. 73, p. 473-476.

Belcher, S.W., Pratt, T.L., Costain, J.K., and Coruh, C., 1986, Alternative processing techniques and data improvement provided by single-sweep recording:  Geophysics, v. 51, p. 1736-1742.




Data Reports

Brocher, T.M., Pratt, T.L., Spence, G.D., Reidel, M., and Hyndman R.D., 2003, Wide-angle seismic recordings from the 2002 Georgia Basin geohazards initiative, northwestern Washington and British Columbia, U. S. Geological Survey Open-File Report 03-160. (http://geopubs.wr.usgs.gov/openfile/of03-160).

Pratt, T.L., Meagher, K., Brocher, T.M., Weaver, C.S., Yelin, T., Hultgrien, L., and Barnett, E., 2003, Earthquake and blast recordings from the 2002 Seattle Seismic Hazard Investigation of Puget Sound (SHIPS) Experiment, Washington State, U. S. Geological Survey Open-File Report 03-361 (http://geopubs.wr.usgs.gov/openfile/of03-361).

Brocher, T.M., Pratt, T.L., Weaver, C.S., Snelson, C.M., and Frankel, A.D., 2002, Implosion, earthquake, and explosion recordings from the 2002 Kingdome Seismic Hazard Investigation of Puget Sound (SHIPS), Washington, U. S. Geological Survey Open-File Report 02-123. (http://geopubs.wr.usgs.gov/open-file/of02-123/)

Brocher, T. M., and Pratt, T.L., 2001, Data files from the “Dry SHIPS” recordings of the Chi-Chi earthquake, Seattle, Washington, Bulletin of the Seismological Society of America, v. 91, p. 1395. (pdf)

Brocher, T.M., Pratt, T.L., Miller, K.C., Trehu, A.M., Snelson, C.M., Weaver, C.S., Creager, K.C., Crosson, R.S., tenBrink, U.S., Alvarez, M.G., Harder, S.H., and Asudeh, I., 2000, Report for explosion and earthquake data acquired in the 1999 Seismic Hazards Investigation of Puget Sound (SHIPS), Washington, U.S. Geological Survey Open-File Report 00-318, 85 pp. (http://geopubs.wr.usgs.gov/open-file/of00-318/)

Liberty, L. M., and Pratt, T.L., 2000, Upper Klamath Lake Seismic Field Report, October 1999 Airgun and Uniboom surveys: Boise State University, Technical Report BSU CGISS 00-01, 46 pp.

Brocher, T.M., Parsons, T., Creager, K.C., Crosson, R.S., Symons, N.P., Spence, G.D., Zelt, B.C., Hammer, P.T.C., Hyndman, R.D., Mosher, D.C., Trehu, A.M., Miller, U.S., Fisher, M.A., Pratt, T.L., Alvarez, M.G., Beaudoin, B.C., Louden, K.E., and Weaver, C.S., 1999, Wide-angle seismic recordings from the 1998 seismic hazards investigation of Puget Sound (SHIPS), western Washington and British Columbia, U. S. Geological Survey Open-File Report 99-314, 110 pp. (http://geopubs.wr.usgs.gov/open-file/of99-314/)


Last Modified :     3/20/2011