Publications
Educational Publications
Educational Publications
Selected publications about earthquakes In plain language.
Filter Total Items: 2785
Proceedings of Conference IV: the use of volunteers in the Earthquake Hazards Reduction Program, convened under the auspices of National Earthquake Hazards Reduction Program, 2-3 February, 1978, Menlo Park, California Proceedings of Conference IV: the use of volunteers in the Earthquake Hazards Reduction Program, convened under the auspices of National Earthquake Hazards Reduction Program, 2-3 February, 1978, Menlo Park, California
There are tens of thousands of people in the United States who could play an important voluntary role in reducing earthquake hazards and are probably willing to do so. Under the Earthquake Hazard Reduction Act of 1977 the Federal government is significantly increasing its effort "to reduce the risk of life and property from future earthquakes in the United States through the...
The effects of the α‐β phase transformation on the creep properties of hydrolytically‐weakened synthetic quartz The effects of the α‐β phase transformation on the creep properties of hydrolytically‐weakened synthetic quartz
Nine rectangular prisms of hydro‐thermally‐grown synthetic quartz crystals with 900 atomic ppm H+ were loaded in compression at 1400 bars stress and temperatures between 403 and 764°C. The a and c directions were at 45° to the compression direction, and the slip system appears to operate over the entire range of temperatures. The strain vs. time curves were sigmoidal in shape; an...
Authors
Stephen H. Kirby
Mechanical twinning in diopside Ca(Mg,Fe)Si2O6: Structural mechanism and associated crystal defects Mechanical twinning in diopside Ca(Mg,Fe)Si2O6: Structural mechanism and associated crystal defects
iopside twins mechanically on two planes, (100) and (001), and the associated macroscopic twinning strains are identical (Raleigh and Talbot, 1967). An analysis based on crystal structural arguments predicts that both twin mechanisms involve shearing of the (100) octahedral layers (containing Ca2+, Mg2+ and Fe2+ ions) by a magnitude of c/2. Small adjustments or shuffles occur in the...
Authors
Stephen H. Kirby, J.M. Christie
Wave propagation in soils Wave propagation in soils
No abstract available.
Authors
Roger D. Borcherdt
A FORTRAN program for calculating nonlinear seismic ground response A FORTRAN program for calculating nonlinear seismic ground response
The program described here was designed for calculating the nonlinear seismic response of a system of horizontal soil layers underlain by a semi-infinite elastic medium representing bedrock. Excitation is a vertically incident shear wave in the underlying medium. The nonlinear hysteretic behavior of the soil is represented by a model consisting of simple linear springs and Coulomb...
Authors
William B. Joyner
Late Quaternary depositional history, Holocene sea-level changes, and vertical crustal movement, southern San Francisco Bay, California Late Quaternary depositional history, Holocene sea-level changes, and vertical crustal movement, southern San Francisco Bay, California
Sediments collected for bridge foundation studies at southern San Francisco Bay, Calif., record estuaries that formed during Sangamon (100,000 years ago) and post-Wisconsin (less than 10,000 years ago) high stands of sea level. The estuarine deposits of Sangamon and post-Wisconsin ages are separated by alluvial and eolian deposits and by erosional unconformities and surfaces of...
Authors
Brian F. Atwater, Charles W. Hedel, Edward J. Helley
Seismicity of the Pahute Mesa area, Nevada Test Site: 8 October 1975 to 30 June 1976 Seismicity of the Pahute Mesa area, Nevada Test Site: 8 October 1975 to 30 June 1976
A total of 1,075 earthquakes occurred in the Pahute Mesa area with 2.5≤ML≤4.9 during the period October 28, 1975, to June 28, 1976. The majority of these earthquakes are aftershocks of the nuclear events, Kasseri, Inlet, Muenster, Fontina, Cheshire, Estuary, Colby, and Pool (5.8≤ML≤6.3). Smaller nuclear events (ML≤5.5) on Rainier Mesa and Yucca Flat detonated in the same time period did...
Authors
A. M. Rogers, Geraldine M. Wuollet, P. A. Covington
Application of linear statistical models of earthquake magnitude versus fault length in estimating maximum expectable earthquakes Application of linear statistical models of earthquake magnitude versus fault length in estimating maximum expectable earthquakes
Correlation or linear regression estimates of earthquake magnitude from data on historical magnitude and length of surface rupture should be based upon the correct regression. For example, the regression of magnitude on the logarithm of the length of surface rupture L can be used to estimate magnitude, but the regression of log L on magnitude cannot. Regression estimates are most...
Authors
Robert K. Mark
In-situ measurements of seismic velocities in the San Francisco Bay Region; part III In-situ measurements of seismic velocities in the San Francisco Bay Region; part III
Seismic wave velocities (compressional and shear) are important parameters for estimating the seismic response characteristics of various geologic units when subjected to strong earthquake ground shaking. Seismic velocities of various units often show a strong correlation with the amounts of damage following large earthquakes and have been used as a basis for certain types of seismic...
Authors
James F. Gibbs, Thomas E. Fumal, Roger D. Borcherdt, Edward F. Roth
Catalog of seismograph stations operated in support of the ERDA Nevada Operations Office, January 1964 thru June 1976 Catalog of seismograph stations operated in support of the ERDA Nevada Operations Office, January 1964 thru June 1976
The seismograph stations listed in this catalog were established over the period January 1964 through June 1976 in support of the Energy Research and Development Administration, Nevada (ERDA/NV) underground weapons testing program at the Nevada Test Site (NTS), central Nevada, and Amchitka, Alaska. For station listings before 1964 see Coast and Geodetic Survey publication, "Seismic Data...
Authors
R. Navarro, Geraldine M. Wuollet, B.R. Bradley
Catalog of seismic records obtained in support of the ERDA/Nevada Operations Office, October 1963 through June 1976 Catalog of seismic records obtained in support of the ERDA/Nevada Operations Office, October 1963 through June 1976
The United States Geological Survey (USGS), Branch of Earthquake Hazards (BEH), Las Vegas, Nevada has provided ERDA, Nevada Operations Office, with seismic monitoring support to the underground nuclear weapons test program conducted at the Nevada Test Site (NTS) since September 1961. Activities from September 15, 1961 to September 13, 1963 are summarized in the report, "Seismic Dats...
Authors
R. Navarro, E.D. Sembera, W.L. Jungblut
Frequency response of the USGS short period telemetered seismic system and its suitability for network studies of local earthquakes Frequency response of the USGS short period telemetered seismic system and its suitability for network studies of local earthquakes
The USGS telemetered seismic system was intended primarily to record small to moderate earthquakes (magnitude 0 to 4) at distances of a few km to several hundred km. Its frequency response is such that the recorded background noise at a moderately quite Coast Range site has a relatively flat 'record' spectrum from about 1/3 Hz to about 20 Hz. With the system magnification set so that the
Authors
Jerry P. Eaton