Publications
Educational Publications
Educational Publications
Selected publications about earthquakes In plain language.
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Crustal structure of the northern mississippi embayment and a comparison with other continental rift zones Crustal structure of the northern mississippi embayment and a comparison with other continental rift zones
Previous geological and geophysical investigations have suggested that the Mississippi Embayment is the site of a Late Precambrian continental rift that was reactivated in the Mesozoic. New information on the deep structure of the northern Mississippi Embayment, gained through an extensive seismic refraction survey, supports a rifting hypothesis. The data indicate that the crust of the...
Authors
Walter D. Mooney, M.C. Andrews, A. Ginzburg, D.A. Peters, R. M. Hamilton
Summaries of technical reports, volume XVII Summaries of technical reports, volume XVII
The research results described in the following summaries were submitted by the investigators on October 20, 1983 and cover the 6-month period from April 1, 1983 through September 30, 1983. These reports include both work performed under contracts administered by the Geological Survey and work by members of the Geological Survey. The report summaries are grouped into the four major...
Authors
Muriel L. Jacobson
Triggering of large earthquakes by magma-chamber inflation, Izu Peninsula (Japan) Triggering of large earthquakes by magma-chamber inflation, Izu Peninsula (Japan)
A close spatial and temporal association between three aseismic uplift episodes and subsequent large (M ≈ 7) earthquakes on the Izu Peninsula, Japan, suggests a causal relation. Quaternary geology, as well as studies by other workers, indicates a volcanic origin for the observed uplift, and we use a simple inflation model constrained by leveling data to compute the expected increments in...
Authors
Wayne R. Thatcher, James C. Savage
Reflection—refraction of general P- and type-I S-waves in elastic and anelastic solids Reflection—refraction of general P- and type-I S-waves in elastic and anelastic solids
The reflection and refraction of general (homogeneous or inhomogeneous) plane P and type-I S(SV) body waves incident on plane boundaries are considered for general linear viscoelastic solids. Reflection—refraction laws, physical characteristics of the waves, and the nature of critical angles are examined in detail at welded boundaries and a free surface. General visco-elasticity with no...
Authors
Roger D. Borcherdt
On the status of in-situ strong ground motion and structural response investigations On the status of in-situ strong ground motion and structural response investigations
No abstract available.
Authors
C. Rojahn, Roger D. Borcherdt
Seismic zonation of the Los Angeles region: A progress report Seismic zonation of the Los Angeles region: A progress report
No abstract available.
Authors
S. T. Algermissen, B. L. Askew, Roger D. Borcherdt, R. H. Campbell, S. H. Clarke, Jack F. Evernden, T. E. Fumal, J. F. Gibbs, H. G. Greene, Thomas C. Hanks, E. L. Harp, S.H. Hartzell, M. G. Hooper, C.E. Johnson, W. B. Joyner, D. K. Keefer, W. J. Kockelman, D. S. McCulloch, D. M. Perkins, A. M. Rogers, P. A. Spudich, P.C. Thenhaus, J. C. Tinsley, R. C. Wilson, R.F. Yerkes, T. L. Youd, J. I. Ziony
Application of wave field continuation to the inversion of refraction data Application of wave field continuation to the inversion of refraction data
Three examples of the inversion of refraction data by downward continuation illustrate the applicability of the method to field data. The first example is a refraction profile from the Mojave Desert, California. These data are spatially aliased and contain clear evidence of lateral inhomogeneity. The inversion in this case produces a broken image in the slowness‐depth domain due to the...
Authors
G. A. McMechan, Robert W. Clayton, Walter D. Mooney
Leg 84 of the Deep Sea Drilling Project Leg 84 of the Deep Sea Drilling Project
No abstract available.
Authors
J. Aubouin, Roland E. von Huene, M. Baltuck, Robert Arnott, J. Bourgois, M.V. Filewicz, Keith A. Kvenvolden, Barry Leinert, Tom McDonald, Kristin McDougall-Reid, Y. Ogawa, Elliot Taylor, Barbara Winsborough
Preliminary study of methods for upgrading USGS Antarctic seismological capability Preliminary study of methods for upgrading USGS Antarctic seismological capability
The purpose of this study is to evaluate potential methods for obtaining higher quality seismic data from Antarctica. Currently, USGS-sponsored WWSSN stations are located at Scott Base, Sanae Base, and at South Pole Station. Scott and Sanae Stations are located near the coast; data obtained from coastal installations are normally degraded by noise generated by ocean wave action on the...
Authors
L. Gary Holcomb
The Imperial Valley, California, earthquake of October 15, 1979 The Imperial Valley, California, earthquake of October 15, 1979
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
A note on transients in the SRO and ASRO long-period data A note on transients in the SRO and ASRO long-period data
Data users have occasionally observed pulse-like transients in the long-period waveforms recorded at the Seismic Research Observatories (SRO) and at the Modified High-Gain Long-Period (ASRO) stations. In a recent paper, Dziewonski et al (1981) reported transients associated with earthquake signals record at some SRO stations, and the authors ascribed these transients to an unpredictable...
Authors
Jon Peterson
Test and calibration of the Digital World-Wide Standardized Seismograph Test and calibration of the Digital World-Wide Standardized Seismograph
During the past decade there has been steady progress in the modernization of the global seismograph network operated by the U.S. Geological Survey (USGS). The World-Wide Standardized Seismograph Network (WWSSN) has been augmented by new stations with advanced instrumentation, including the Seismic Research Observatories (SRO) and the modified High-Gain Long-Period (ASRO) stations. One...
Authors
Jon Peterson, Charles R. Hutt