SHIPS - Publications

Journal Publications

Barberopoulou, A., A. Qamar, T.L. Pratt, K.C. Creager, and W.P. Steele, 2004, Local amplification of seismic waves from the Mw7.9 Alaska earthquake and damaging seiches in Lake Union, Seattle, Washington, Geophys. Res. Lett., v. 31, L03607, doi: 10.1029/2003GL018569.

Blakely, R.J., T.M. Brocher, and R.E. Wells, 2005, Subduction zone magnetic anomalies and implications for hydrated forearc mantle, Geology, 33, 445-448.

Brocher, T.M., T. L. Pratt, C.S. Weaver, A.D. Frankel, A.M. Tréhu, C.M. Snelson, K.C. Miller, S.H. Harder, U.S. ten Brink, K. C. Creager, R.S. Crosson, and W. P. Steele, 2000, Urban seismic experiments investigate the Seattle fault and basin, Eos, Trans. AGU, v. 81, no. 46, p. 545, 551-552.

Brocher, T.M., T. Parsons, R.A. Blakely, N.I. Christensen, M.A. Fisher, R.E. Wells, and the SHIPS Working Group, 2001, Upper crustal structure in Puget Lowland, Washington: Results from the 1998 Seismic Hazards Investigation in Puget Sound, J. Geophys. Res., 106, 13,541-13,564.

Brocher, T.M., T. Parsons, A.M. Tréhu, C.M. Snelson, and M.A. Fisher, 2003, Seismic evidence for widespread serpentinized forearc upper mantle along the Cascadia margin, Geology, 31, no. 3, 267-270.

Brocher, T.M., C.S. Weaver, and R.S. Ludwin, 2003, Assessing hypocentral accuracy and lower magnitude completeness in the Pacific Northwest using seismic refraction detonations and cumulative frequency-magnitude relationships, Seism. Res. Lett., 74, 773-790.

Brocher, T.M., R.J. Blakely, and R.E. Wells, 2004, Interpretation of the Seattle Uplift, Washington, as a passive roof duplex, Bull. Seism. Soc. Am., 94, 1379-1401.

Calvert, A.J., 2004, Seismic reflection evidence for two megathrusts in the northern Cascadia subduction zone, Nature, 428, 163-167.

Calvert, A.J., M.A. Fisher, and SHIPS Working Group, 2001, Imaging the Seattle fault zone with high-resolution seismic tomography, Geophys. Res. Lett., 28, 2337-2340.

Calvert, A.J., M.A. Fisher, S.Y. Johnson, and the SHIPS Working Group, 2003, Along-strike variations in the seismic velocity structure of the Seattle fault zone: Evidence for fault segmentation beneath Puget Sound, J. Geophys. Res. , 108(B1), doi:10.1029/2001JB001703.

Calvert, A.J., M.A. Fisher, K. Ramachandran, and A.M. Tréhu, 2003, Possible emplacement of crustal rocks into the forearc mantle of the Cascadia subduction zone, Geophys. Res. Lett., 30(23), 2196, SDE 3-1 to 3-4, doi:10.1029/2003GL018541.

Calvert, A. J.,, K. Ramachandran, Honn Kao, and M. A. Fisher (2006). Local Thickening of the Cascadia Forearc Crust and the Origin of Seismic Reflectors in the Uppermost Mantle, Tectonophysics, in press.

Creager, K.C., L.A. Preston, R.L. Crosson, T. van Wagoner, A. Tréhu, and the SHIPS Working Group, 2002, Three-dimensional reflection image of the subducting Juan de Fuca plate, U.S. Geological Survey Open-File Report 02-328 and Geological Survey of Canada Open File 4350, p. 37-42. http://geopubs.wr.usgs.gov/open-file/of02-328/

Crosson, R.S., N.P. Symons, K.C. Creager, L.A. Preston, T. Van Wagoner, T.M. Brocher, M. Fisher, and the SHIPS Working Group, 2002, Three-dimensional structure of the Cascadia forearc region from SHIPS active experiment and earthquake observations: tomographic inversion provides a high-resolution view into the core of the Cascadia forearc complex, U.S. Geological Survey Open-File Report 02-328 and Geological Survey of Canada Open File 4350, p. 33-34. http://geopubs.wr.usgs.gov/open-file/of02-328/

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

Fisher, M.A., R.D. Hyndman, S.Y. Johnson, R.S. Crosson, U.S. ten Brink, A.J. Calvert, T.M. Brocher, R.E. Wells, and the SHIPS Working Group, 2003, Crustal structure and earthquake hazards of the Subduction Zone in the Central Part of Cascadia, U.S. Geological Survey Prof. Paper 1661-X, in press.

Graindorge, D., G. Spence, P. Charvis, J.Y. Collot, R.D. Hyndman, and A.M. Tréhu, 2003, Crustal structure beneath Juan de Fuca Strait and southern Vancouver Island from seismic and gravity analyses, J. Geophys. Res., 108, B10, doi:10.1029/2002JB001823, EPM 5-1 to 5-23.

Hartzell, S., Carver, D., Cranswick, E., and A. Frankel, 2000, Variability of site response in Seattle, Washington, Bull. Seismol. Soc. Amer., 90, 1237-1250.

Hayward , N., Nedimovic, M. Cleary, and A.J. Calvert, Identifying faults and their recent motion in eastern Strait of Juan de Fuca, NEHRP Contract Report 02HQGR0055,35 pp., 2003.

Johnson, S.Y., R.J. Blakely, W.J. Stephenson, S.V. Dadisman, and M.A. Fisher, 2004, Active shortening of the Cascadia forearc and implications for seismic hazards of the Puget Lowland: Tectonics, v. 23, TC1011, doi:10.1029/2003TC001507, 27 pages.

Johnson, S.Y., Dadsman, S.V., Mosher, D.C., Blakely, R.J., and Childs, J.R., 2001, Active tectonics of the Devils Mountain fault and related structures, northern Puget Lowland and eastern Strait of Juan de Fuca region, Pacific Northwest, U.S. Geological Survey Professional Paper 1643 (65 p. text, 2 tables, 38 figs., 2 plates).

Kao, H., S.-Ju. Shan, G. Rogers, H. Dragert, J. F. Cassidy, and K. Ramachandran (2005). Depth distribution of seismic tremors along the northern Cascadia margin, Nature, 436, 841-844, doi:10.1038/nature03903.

Li, Q., W. Wilcock, T.L. Pratt, C.M. Snelson, and T.M. Brocher, 2005, Seismic attenuation structure of the Seattle basin using Dry SHIPS Experiment data, in press.

Lowe, C., S. A. Dehler, and B. C. Zelt (2003). Basin architecture and density structure beneath the Strait of Georgia, British Columbia, Can. J. Earth Sci., 40 (7), 965-981.

Mosher, D.C., Cassidy, J.F., Lowe, C., Mi, Y., Hyndman, R.D., Rogers, G.C., and M.A. Fisher (2000). Neotectonics in the Strait of Georgia: Tentative correlation of seismicity with shallow geologic structure in southwestern British Columbia, Geological Survey of Canada, Current Research 2000-A22 , 1-9.

Nedimovic, M.R., R.D. Hyndman, K. Ramachandran, and G.D. Spence, 2003, Reflection signature of seismic and aseismic slip on the northern Cascadia subduction thrust, Nature, 424, 416-420.

Parsons, T., R.J. Blakely, and T.M. Brocher, 2001, A simple algorithm for sequentially incorporating gravity observations in seismic traveltime tomography, International Geology Review, 43, 1073-1086.

Pitarka, A., R. Graves, and P. Somerville, 2004, Validation of a 3D velocity model of the PugetSound region based on modeling ground motion from the February 28, 2001 Nisqually earthquake, Bull. Seism. Soc. Am., 94, 1670-1689.

Pratt, T.L., and T.M. Brocher, 2005, Attenuation within sedimentary basins and the shapes of site response curves in the Puget Lowland, Washington State, Bull. Seism. Soc. Am., in press.

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.

Pratt, T.L., T.M. Brocher, C.S. Weaver, K.C. Creager, C.M. Snelson, R.S. Crosson, K.C. Miller, and A.M. Tréhu, 2003, Amplification of seismic waves by the Seattle basin, Bull. Seism. Soc. Am., 93, 533-545.

Preston, L.A., K.C. Creager, R.S. Crosson, T.M. Brocher, and A.M. Tréhu, 2003, Intraslab earthquakes: Dehydration of the Cascadia slab, Science, 302, no. 5648, p. 1197-1200.

Ramachandran, K., S.E. Dosso, C. Zelt, G.D. Spence, R.D. Hyndman, and T.M. Brocher, 2004, Upper crustal structure of Southwestern British Columbia from the 1998 Seismic Hazards Investigation in Puget Sound, J. Geophy. Res., 109, B9, B09303, doi: 10.1029/2004JB003092.

Ramachandran, K., S.E. Dosso, C.A. Zelt, G.D. Spence, R.D. Hyndman, and T.M. Brocher, 2005, Forearc structure beneath southwestern British Columbia: A 3-D tomography velocity model, J. Geophy. Res., 110, B02303, doi:10.1029/2004JB003258.

Sherrod, B.L., T.M. Brocher, C.S. Weaver, R.C. Bucknam, R.J. Blakely, H.M. Kelsey, A.R. Nelson, and R. Haugerud, 2004, Holocene fault scarps near Seattle, Washington, Geology, 32, 9-12.

ten Brink, U.S., P.C. Molzer, M.A. Fisher, R. J. Blakely, R.C. Bucknam, T. Parsons, R.S. Crosson, and K.C. Creager, 2002, Subsurface geometry and evolution of the Seattle fault zone and the Seattle Basin, Washington, Bull. Seism.l Soc. of America, 92, 1737-1753.

TrÈhu, A.M., T.M. Brocher, K. Creager, M. Fisher, L. Preston, G. Spence, and the SHIPS98 Working Group, 2002, Geometry of the subducting Juan de Fuca plate: New constraints from SHIPS98, U.S. Geological Survey Open-File Report 02-328 and Geological Survey of Canada Open File 4350, p. 25-32. http://geopubs.wr.usgs.gov/open-file/of02-328/

Van Wagoner, T.M., R.S. Crosson, K.C. Creager, G.F. Medema, L.A. Preston, N.P. Symons, and T.M. Brocher, 2002, Crustal structure and relocated earthquakes in the Puget Lowland, Washington from high resolution seismic tomography, J. Geophys. Res., 107, B12, 10.10129/2001JB000710.

Zelt, B.C., R.M. Ellis, C.A. Zelt, R.D. Hyndman, C. Lowe, G.D. Spence, and M.A. Fisher, 2001, Three-dimensional crustal velocity structure beneath the Strait of Georgia, British Columbia, Geophys. J. Inter., 144, 695-712.

Masters and Ph. D. Theses

Hiett, B., 2001, Structure of the Tacoma Basin, M.S. thesis, Univ. Texas El Paso.

Preston, L. A., 2003, Simultaneous inversion of 3D velocity structure, hypocenter Locations, and reflector geometry in Cascadia, Ph. D. thesis, University of Washington, Seattle, 135 pp.

Ramachandran, K., 2001, Velocity structure of S.W. British Columbia, and N.W. Washington, from 3-D non-linear seismic tomography, Ph.D. thesis, Univ. of Victoria, B.C., 198 pp.

Snelson, C.M., 2001, Investigating crustal structure in western Washington and in the Rocky Mountains: Implications for seismic hazards and crustal growth, Ph.D. thesis, Univ. Texas El Paso, 234 p.

Symons, N., 1998, Seismic velocity structure of the Puget Sound region from 3-D non-linear tomography, Ph. D. thesis, Univ. Washington, 168 p.

Data Compilations – Open-File Reports

Brocher, T.M., T. Parsons, K. C. Creager, R. S. Crosson, N. P. Symons, G. Spence, B.C. Zelt, P.T.C. Hammer, R. D. Hyndman, D.C. Mosher, A. M. TrÈhu, K. C. Miller, U.S. ten Brink, M.A. Fisher, T. L. Pratt, M.G. Alvarez, B.C. Beaudoin, and C.S. Weaver, 1999, Wide-angle seismic recordings from the 1998 Seismic Hazards Investigation in Puget Sound (SHIPS), western Washington and British Columbia, U.S. Geological Survey Open-File Report 99-314, 110 p.

Brocher, T.M., T. Parsons, M.A. Fisher, A.M. TrÈhu, G.D. Spence, and the SHIPS Working Group, 2000, Three-dimensional tomography in the eastern Strait of Juan de Fuca: Preliminary results from SHIPS, the 1998 Seismic Hazards Investigation in Puget Sound, in Mosher, D.C., and S.Y. Johnson (eds.), Rathwell, G.J., R.B. King, and S.B. Rhea (compilers), Neotectonics of the eastern Strait of Juan de Fuca; a digital geologic and geophysical atlas, Geological Survey of Canada Open File Report 3931.

Brocher, T.M., T. L. Pratt, K.C. Miller, A.M. TrÈhu, C.M. Snelson, C.S. Weaver, K. C. Creager, R.S. Crosson, U.S. ten Brink, M.G. Alvarez, S.H. Harder, and I. Asudeh, 2000, Report for explosion and earthquake data acquired in the 1999 Seismic Hazards Investigation in Puget Sound (SHIPS), Washington, U.S. Geological Survey Open-File Report 00-318, 85 p.

Brocher, T.M., T. L. Pratt, C.S. Weaver, C.M. Snelson, and A.D. Frankel, 2002, Implosion, earthquake, and explosion recordings from the 2000 Seattle Kingdome Seismic Hazards Investigation in Puget Sound (SHIPS), Washington, U.S. Geological Survey Open-File Report 02-123, 29 p.

Brocher, T.M., Pratt, T.L., and the Dry SHIPS Working Group, 2001, Dry SHIPS Recordings of the Chi-Chi earthquake, Seattle, Washington, Bull. Seismol. Soc. Amer., v. 91, p. 1395 (with CD-supplement of seismic data).

Brocher, T.M., T.L. Pratt, G.D. Spence, M. Riedel, and R.D. Hyndman, 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, 34 p. http://geopubs.wr.usgs.gov/open-file/of03-160/

Mosher, D.C., and S.Y. Johnson (eds.), Rathwell, G.J., R.B. King, and S.B. Rhea (compilers), 2000, Neotectonics of the eastern Strait of Juan de Fuca; a digital geologic and geophysical atlas, Geological Survey of Canada Open File Report 3931.

Pratt, T.L., K.L. Meagher, T.M. Brocher, T. Yelin, R. Norris, L. Hultgrien, E. Barnett, and C.S. Weaver, 2003, Earthquake recordings from the 2002 Seattle Seismic Hazard Investigation of Puget Sound (SHIPS), Washington State, USGS Open-File Report 03-361, 72 p. http://geopubs.wr.usgs.gov/open-file/of03-361/

Sherrod, B.L., A.R. Nelson, H.M. Kelsey, T.M. Brocher, R.J. Blakely, C.S. Weaver, N.K. Rountree, S.B. Rhea, and B.S. Jackson, 2003, The Catfish Lake scarp, Allyn, Washington: Preliminary field data and implications for earthquake hazards posed by the Tacoma fault, U.S. Geol. Surv. Open-File Rept. 03-455, 11 pp., 1 sheet. http://pubs.usgs.gov/of/2003/of03-455.

Publications In Review

Hayward , N., M. Nedimovic, M. Cleary, and A.J. Calvert, Structural variation along the Devils Mountain fault zone, northwestern Washington, Bull. Seism. Soc. Am., in press..

Pratt, T.L., M.E. Templeton, R. Frost, and A. Pierson, 2006, Variations in geophone responses in temporary seismic arrays, Seism. Res. Lett., 76, in press.

Ramachandran,K., and R.D. Hyndman, 2005, P- and S-wave velocity structure beneath SW British Columbia: constraints on serpentinized forearc mantle wedge, Geophy. Res. Lett., in press.

Ramachandran, K., R. D. Hyndman, and T. M. Brocher, 2006, Regional P-wave velocity structure of the Northern Cascadia Subduction Zone, J. Geophys. Res., in review.

Royle, G.T., A. J. Calvert, and H. Kao, 2006, Non-episodic tremor in the forearc of the Cascadia subduction zone, Geophys. Res. Lett., in review.

Manuscripts In Preparation

Snelson, C. M., T.M. Brocher, K.C. Miller, T.L. Pratt, and A.M. Tréhu, 2005, Seismic amplification within the Seattle basin, Washington: Insights from SHIPS seismic tomography experiments, Bull. Seism. Soc. Am., in prep.

Abstracts

Barberopoulou, A., K. Creager, A. Qamar, G. Thomas, W. Steele, and T. Pratt, 2002, Local amplification of seismic waves from the Mw 7.9 Alaska earthquake and a damaging seiche in Lake Union, Seattle, Washington, Eos Trans. AGU, 83(47), Fall Meet. Suppl., Abstract S72F-1353, 2002.

Pratt, T.L., T.M. Brocher, C. Weaver, K. Meagher, T. Yelin, R. Norris, L. Hultgrien, and E. Barnett, 2002, The seismic response of the Seattle sedimentary basin, Washington State, to teleseisms recorded on the Seattle SHIPS array, Eos Trans. AGU, 83(47), Fall Meet. Suppl., Abstract S22B-1035, 2002.

Riedel, M., V. Barrie, P. Hill, T.M. Brocher, T.L. Pratt, and R.D. Hyndman, 2002, Mapping of near Surface Active Faults in Georgia Strait, Eos Trans. AGU, 83(47), Fall Meet. Suppl., Abstract S22B-1031, 2002.