Exciting news! We're transitioning to the Statewide California Earthquake Center. Our new website is under construction, but we'll continue using this website for SCEC business in the meantime. We're also archiving the Southern Center site to preserve its rich history. A new and improved platform is coming soon!

Norman H. Sleep

Department of Geophysics
Stanford University

Expertise: seismology, tectonics, mantle convection, rock physics, astrobiology
About Me Publications
Sleep, N. H. (2020, 08). Near-fault large-event ground motion models. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10237
Sleep, N. H. (2019). Friction in Cold Ice within Outer Solar System Satellites with Reference to Thermal Weakening at High Sliding Velocities. Journal of Geophysical Research - Planets, (accepted). doi: 10.1029/2019JE006030. SCEC Contribution 9344
Sleep, N. H., & Liu, T. (2019, 07). Shallow and deep nonlinear attenuation of S waves beneath PS10 during the 2002 Denali mainshock. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9277
Sleep, N. H., & Nakata, N. (2018). Nonlinear Body Waves In The Shallow Subsurface, Implications Of Flow-law Rheologies. Oral Presentation at 11th National Conference in Earthquake Engineering, Earthquake Engineering Research Institute . SCEC Contribution 8913
Sleep, N. H. (2018, 07). Searching for Spot-Fire Earthquakes Triggered During the 2004 Parkfield Mainshock. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8186
Sleep, N. H. (2017, 07). Earthquake cycles with dynamic weakening from flash melting with heterogeneous stress and near-fault anelastic strain. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7309
Sleep, N. H. (2016, 07). Frictional rheology for nonlinear attenuation: Implications for paleoseismology and strong S-waves. Poster Presentation at 2016 SCEC Annual Meeting. SCEC Contribution 6308
Sleep, N. H., & Liu, T. (2020). Nonlinear Suppression of High‐Frequency S Waves by the Near‐Field Velocity Pulse With Reference to the 2002 Denali Earthquake. Journal of Geophysical Research: Solid Earth, 125(1). doi: 10.1029/2019JB018386. SCEC Contribution 9959
Stirling, M., Oskin, M. E., Arrowsmith, R., Rood, A. H., Goulet, C. A., Grant Ludwig, L., King, T., Kottke, A. R., Lozos, J. C., Madugo, C. M., McPhillips, D., Rood, D. H., Sleep, N. H., & Wittich, C. (2020). Evaluation of seismic hazard models with fragile geologic features. Seismological Research Letters, 92(1), 314-324. doi: 10.1785/0220200197. SCEC Contribution 10777
Sleep, N. H., & Hough, S. E. (2020). Mild Displacements of Boulders during the 2019 Ridgecrest Earthquakes. Bulletin of the Seismological Society of America, 110(4), 1579-1588. doi: 10.1785/0120200029. SCEC Contribution 10060
Sleep, N. H. (2019). Nonlinear interaction of high-frequency seismic waves with sliding fault planes. Geophysical Research - Solid Earth,. SCEC Contribution 9960
Sleep, N. H., & Nakata, N. (2019). Nonlinear Rheology at Shallow Depths with Reference to the 2016 Kumamoto Earthquakes. Bulletin of the Seismological Society of America, 109(6), 2674-2690. doi: 10.1785/0120180200. SCEC Contribution 9955
Sleep, N. H. (2019). Thermal Weakening of Asperity Tips on Fault Planes at High Sliding Velocities. Geochemistry, Geophysics, Geosystems, 20(2), 1164-1188. doi: 10.1029/2018GC008062. SCEC Contribution 8995
Sleep, N. H., & Olds, E. P. (2018). Remote faulting triggered by strong seismic waves from the Cretaceous-Paleogene asteroid impact. Seismological Research Letters, 89(2A), 570-576. SCEC Contribution 7996
Sleep, N. H., & Nakata, N. (2017). Nonlinear Attenuation of S Waves by Frictional Failure at Shallow Depths. Bulletin of the Seismological Society of America, 107, 1828–1848. SCEC Contribution 7204
Sleep, N. H. (2016). Shallow sedimentary rock as a fragile geological feature: Effects of clay content and hydrology on frictional strength. Bulletin Seismological Society of America, 106(6), 2777-2783. SCEC Contribution 6431
Sleep, N. H., & Nakata, N. (2016). Nonlinear suppression of high-frequency S-waves by strong Rayleigh waves. Bulletin Seismological Society of American, 106(5), 2302–2312. SCEC Contribution 6298
Sleep, N. H. (2016). Heat flow, strong near-fault seismic waves, and near-fault tectonics on the central San Andreas Fault. Geochemistry, Geophysics, Geosystems, 17(5), 1778-1798. doi: 10.1002/2016GC006280. SCEC Contribution 6259
Sleep, N. H. (2015). ShallowS‐Wave Well Logs as an Indicator of Past Strong Shaking from Earthquakes on the Newport–Inglewood Fault. Bulletin of the Seismological Society of America,. doi: 10.1785/0120150026. SCEC Contribution 6014
Sleep, N. H., & Nakata, N. (2015). Nonlinear attenuation from the interaction between different types of seismic waves and interaction of seismic waves with shallow ambient tectonic stress. Geochemistry, Geophysics, Geosystems, 16(7), 2336-2363. doi: 10.1002/2015GC005832. SCEC Contribution 6013
Sleep, N. H. (2015). Long-term deformation driven by small ambient tectonic stresses and strong oscillating tidal within Enceladus with analogy to rock behavior near the San Andreas Fault. Geochemistry, Geophysics, Geosystems, 16(5), 1670-1686. doi: 10.1002/2015GC005725. SCEC Contribution 2108
Sleep, N. H. (2014). Ambient tectonic stress as fragile geological feature. Geochemistry, Geophysics, Geosystems, 15(9), 3628-3644. doi: 10.1002/2014GC005426. SCEC Contribution 1966
Sleep, N. H., & Erickson, B. A. (2014). Nonlinear attenuation of S-waves and Love waves within ambient rock. Geochemistry, Geophysics, Geosystems, 15(4), 1419–1440. doi: 10.1002/2014GC005250. SCEC Contribution 1935
Sleep, N. H., & Lowe, D. R. (2014). Physics of crustal fracturing and chert dike formation triggered by asteroid impact, ~3.26 Ga, Barberton greenstone belt, South Africa. Geochemistry, Geophysics, Geosystems, 15(4), 1054–1070. doi: 10.1002/2014GC005229. SCEC Contribution 1915
Sleep, N. H. (2013). Self-organization of elastic moduli in the rock above blind faults. Geochemistry, Geophysics, Geosystems, 14(3), 733–750. doi: 10.1002/ggge.20073. SCEC Contribution 1693
Sleep, N. H. (2012). Microscopic elasticity and rate and state friction evolution laws. Geochemistry, Geophysics, Geosystems, 13(12). SCEC Contribution 1680
Sleep, N. H. (2012). Constraint on the recurrence of great outer-rise earthquakes from seafloor bathymetry. Earth, Planets and Space, 64(12), 1245-1246. doi: 10.5047/eps.2012.07.011. SCEC Contribution 1674
Sleep, N. H. (2012). Maintenance of permeable habitable subsurface environments by earthquakes and tidal stresses. International Journal of Astrobiology, 11(4), 257-268. doi: 10.1017/S1473550412000122. SCEC Contribution 1629
Sleep, N. H. (2012). Site resonance from strong ground motions at Lucerne, California, during the 1992 Landers Mainshock. Bulletin of the Seismological Society of America, 102(4), 1505–1513. doi: 10.1785/0120110267. SCEC Contribution 1532
Sleep, N. H. (2011). Seismically damaged regolith as self-organized fragile geological feature. Geochemistry, Geophysics, Geosystems, 12, Q12013. doi: 10.1029/2011GC003837. SCEC Contribution 1515
Sleep, N. H. (2011). Deep-seated down-slope slip during strong seismic shaking. Geochemistry, Geophysics, Geosystems, 12, Q12001. doi: 10.1029/2011GC003838. SCEC Contribution 1510
Sleep, N. H. (2010). Strong seismic shaking of randomly pre-stressed brittle rocks, rock damage, and nonlinear attenuation. Geochemistry, Geophysics, Geosystems, 11, Q10002. doi: 10.1029/2010GC003229. SCEC Contribution 1449
Sleep, N. H. (2010). Sudden and gradual compaction of shallow brittle porous rocks. Journal of Geophysical Research: Solid Earth, 115, B08210. doi: 10.1029/2009JB006719. SCEC Contribution 1339
Sleep, N. H. (2010). Nonlinear Behavior of Strong Surface Waves Trapped in Sedimentary Basins. Bulletin of the Seismological Society of America, 100(2), 826-832. doi: 10.1785/0120090150. SCEC Contribution 1327
Sleep, N. H. (2009). Application of rate and state friction formalism and flash melting to thin permanent slip zones of major faults. Geochemistry, Geophysics, Geosystems, 11(5), Q05007. doi: 10.1029/2009GC002997. SCEC Contribution 1431
Sleep, N. H. (2009). Depth of Rock Damage from Strong Seismic Ground Motions near the 2004 Parkfield Mainshock. Bulletin of the Seismological Society of America, 99(5), 3067-3076. doi: 10.1785/0120090065. SCEC Contribution 1278
Sleep, N. H., & Hagin, P. N. (2008). Nonlinear attenuation and rock damage during strong seismic ground motions. Geochemistry, Geophysics, Geosystems, 9, Q10015. doi: 10.1029/2008GC002045. SCEC Contribution 1217
Sleep, N. H., & Ma, S. (2008). Production of Brief Extreme Ground Acceleration Pulses by Nonlinear Mechanisms in the Shallow Subsurface. Geochemistry, Geophysics, Geosystems, 9, Q03008. doi: 10.1029/2007GC001863. SCEC Contribution 1144
Hagin, P. N., Sleep, N. H., & Zoback, M. D. (2007). Application of rate-and-state friction laws to creep compaction of unconsolidated sand under hydrostatic loading conditions. Journal of Geophysical Research: Solid Earth, 112(B05420). doi: 10.1029/2006JB004286. SCEC Contribution 946
Sleep, N. H. (2006). Real Contacts and Evolution Laws for Rate and State Friction. Geochemistry, Geophysics, Geosystems, 7, Q08012. doi: 10.1029/2005GC001187. SCEC Contribution 991
Sleep, N. H. (2006). Frictional Dilatancy. Geochemistry, Geophysics, Geosystems, 7, Q10008. doi: 10.1029/2006GC001374. SCEC Contribution 1030
Fitzenz, D. D., Jalobeanu, A., Hickman, S. H., & Sleep, N. H. (2005, 11). Integrating Laboratory Compaction Data With Numerical Fault Models: a Bayesian Framework. Oral Presentation at 25th International Workshop on Bayesian Inference. doi: 10.1063/1.2149829. SCEC Contribution 943
Sleep, N. H. (2005). Physical Basis of Evolution Laws for Rate and State Friction. Geochemistry, Geophysics, Geosystems, 6, Q11008. doi: 10.1029/2005GC000991. SCEC Contribution 896

Last updated Dec 06, 2021.