Recent Publications

Koper, K.D., D.A. Wiens, L.M. Dorman, J.A. Hildebrand, S.C. Webb, Constraints on the origin of slab and mantle wedge anomalies in Tonga from the ratio of S to P velocities,  J. Geophys. Res., 104(B7), 15089-15104, (1999).

Crawford, W.C., and S.C. Webb, Removing tilt noise from low frequency (<0.1 Hz) seafloor vertical seismic data, Bull. Seismo. Soc. Amer., 90(4), 952-963, (2000). 

Webb, S.C.,  Seismic noise on land and on the seafloor, Chapter 17, IASPEI International Handbook of Earthquake and Engineering Seismology, W.K. Lee, H. Kanamori and P. Jennings (eds.), (1999).

Sohn, R. A.,  F. Vernon,  J. A. Hildebrand,  and S. C. Webb, Field measurements of sonic boom penetration into the ocean, J. Acoust. Soc. Amer.,  107(6), 3073- 3083, (2000).

Golden, C.E., S.C. Webb, and R.A. Sohn, Hydrothermal microearthquake swarms beneath active vents at Middle Valley, Juan de Fuca Ridge, J. Geophys. Res., 108 (B1), 2027, doi:10.1029/2001JB000226, 2003. 

Crawford, W.C. and S.C. Webb, Variations in the distribution of magma in the lower crust and at the Moho beneath the East Pacific Rise at 9-10N, Earth Planet Sci. Lett., 203(1),  117-130, 2002. 

Webb, S.C. T.K. Deaton, and J.C. Lemire, A broadband ocean bottom seismometer system based on a 1 Hz natural period geophone,  Bull. Seismo. Soc. Amer., 91 (2), 304-312, (2001). 

Gilbert, H.J., A.F. Sheenan, D.A. Wiens, L. Dorman, J. Hildebrand, and S.C. Webb, Upper mantle discontinuity structure in the region of the Tonga subduction zone, Geophys. Res. Lett., 28(9), 1855-1858, (2001).

Crawford, W.C., J.A. Hildebrand, D.A. Wiens, S.C. Webb, and  L.M. Dorman, Tonga Ridge and Lau Basin crustal structure from seismic refraction data, , J. Geophys. Res.,  108, (B4), 10.1029/2001JB001435, (2003).

Gee, J.S., S.C. Webb, J. Ridgway, H. Staudigel, and M.A. Zumberge, A deep-tow magnetic survey of Middle Valley, Juan de Fuca ridge,  Geochem., Geophys., Geosyst., 2, 10.1029/2001GC000170, (2001).

Smith, G.P., D.A. Wiens, K.M. Fischer, L.M. Dorman, S.C. Webb, and J.A. Hildebrand, A complex pattern of mantle flow in the Lau backarc, Science, 292, 713-716, (2001). 

West, M., W. Menke, M. Tolstoy, S. Webb. and R. Sohn, Magma storage beneath Axial Volcano on the Juan de Fuca mid-ocean ridge, Nature, 413, 833-836,  (2001). 

Evans, R.L., S.C. Webb and others, Crustal resistivity structure at 9° 50’N on the East Pacific Rise: preliminary results of an electromagnetic survey, Geophys. Res. Lett., 29(6), 4 pages,.  (2002). 

Sohn, R.A., A.H. Barclay, and S.C. Webb, Microearthquake patterns following the 1998 eruption of Axial Volcano, Juan de Fuca Ridge: Mechanical Relaxation and thermal strain, J. Geophys. Res., 109, B01101, doi:10.1029/2003JB002499, (2004).

Sohn, R.A., S.C. Webb and J.A. Hildebrand,, Fine scale seismic structure of the shallow volcanic crust on the East Pacific Rise at 9-50N, J. Geophys. Res., 109, B12104, doi:101029/2004JB003152, (2004). 

Tolstoy, M., J. B. Diebold, S. C. Webb, D. R. Bohnenstiehl, E. Chapp, R. C. Holmes, and M. Rawson, Broadband calibration of R//V Ewing seismic sources, Geophys. Res. Lett., 31, L14310, doi:10.1029/2004GL020234 (2004).

Harmon, N., D.W. Forsyth, K.M. Fischer, and S.C. Webb, Variations in shear-wave splitting in young pacific seafloor, Geophys. Res. Lett., 31, L15609, doi:10.1029/2004GL020495, (2004).

Gu, Y. J., S.C. Webb, A. LernerLam, and J.B. Gaherty, Upper mantle structure beneath  the eastern Pacific ocean ridges, J. Geophys. Res., 110, B06305, doi:10.1029/2004/JB003381,  (2005). 

Harmon, N., D.W. Forsyth, R. Lamm, and S.C. Webb, P and S wave delays beneath intraplate volcanic ridges and gravity lineations near the East Pacific Rise, J. Geophys. Res., 112(B3), B03309, doi: 10.1029/2006JB004392, (2007).

Weerarante, D S., D.W. Forsyth, Y. Yang and, S.C. Webb,  Rayleigh wave tomography of the oceanic mantle beneath intraplate volcanic ridges in the South Pacific, J. Geophys. Res., 112, B6, B06303, doi: 10.1029/2006JB004403, (2007). 

Webb, S.C., “The Earth's Hum is Driven by Ocean Waves over the Continental Shelves”, Nature, 445, 754-756, (2007).

Holmes, R.C., S.C. Webb and D.W. Forsyth, Crustal structure beneath gravity lineations in the GLIMPSE study are from seismic refraction data, J. Geophys. Res., 112, B07316, doi:10.1029/2006JB004685, (2007).

Harmon, N., D.W. Forsyth, and S.C. Webb, Using ambient seismic noise to determine short period phase velocities and shallow shear velocities in young oceanic lithosphere,  Bull. Soc. Seism. Amer, 97(6), 2009-2023, (2007). 

Webb, S.C., The Earth’s hum: the excitation of Earth normal modes by ocean waves, J. Geophys. Int., 174(3), 542-566, doi:10.1111/j.1365-246X.2008.03801.x, (2008). 

Ekstrom, G., G.A. Abers, and S.C. Webb, Determination of surface wave phase velocities across USArray from noise and Aki’s spectral formulation, Geophys. Res. Lett., 36, L18301, doi:10.1029/2009GL039131, (2009).

Tolstoy, M., J. Diebold, L. Doermann, S. Nooner, S. C. Webb, D. R. Bohnenstiehl, T. J. Crone, and R. C. Holmes (2009), Broadband calibration of the R/V Marcus G. Langseth four-string seismic sources, Geochem. Geophys. Geosyst., 10, Q08011, doi:10.1029/2009GC002451, (2009).

Webb, S.C. and W.C. Crawford,  Shallow Water Broad Band OBS Seismology, Bull. Soc. Seism. Amer., 100(4), 1770-1778, doi: 10.1785/012009020, (2010).

Zha, Y., S. C. Webb, and W. Menke, Determining the orientations of ocean bottom seismometers using ambient noise correlation, Geophys. Res. Lett., 40, doi:10.1002/grl.50698, (2013).

Zha, Y., S. C. Webb,  and S.L. Nooner, Spatial distribution and temporal evolution of crustal melt distribution beneath the East Pacific Rise at 9º-10º N inferred from 3D seafloor compliance modeling, J. Geophys. Res., (2014).

Kuo, Ban-Yuan, Spahr C. Webb, Ching-Ren Lin1Wen-Tzong Liang, and Nai-Chi Hsiao, Removing infragravity-wave induced noise from OBSs data deployed offshore of Taiwan, Bull. Seism.  Soc. Amer., 2014.

Nooner, Scott L. , Spahr C. Webb, W. Roger Buck, and Marie-Helen Cormier, Post-Eruption Inflation of the East Pacific Rise at 9º50' N, Geochem. Geophys. Geosyst.,(2014).

Zha, Yang, Spahr C. Webb, S. Shawn Wei, Douglas A. Wiens, Donna K. Blackman, William Menke, Robert A. Dunn, and James A. Conder, Seismological imaging of ridge–arc interaction beneath the Eastern Lau Spreading Center from OBS ambient noise tomography, Earth and Planet. Science Letters 408 : 194-206, (2014).

Menke, W., Zha, Y., Webb, S. C., & Blackman, D. K. . Seismic Anisotropy Indicates Ridge‐parallel Asthenospheric Flow Beneath the Eastern Lau Spreading Center. J. .Geophys .R, (2015).

Wei, S. Shawn, D.A. Wiens, Y. Zha, T. Plank, S.C. Webb, D.K. Blackman, R.A. Dunn. and J.A. Conder, Seismic evidence of effects of water on melt transport in the Lau back-arc mantle, Nature, doi:10.1038/nature14113, (2015).