Publications
Educational Publications
Educational Publications
Selected publications about earthquakes In plain language.
Filter Total Items: 2573
Preliminary design study for a National Digital Seismograph Network
Recently, the National Research Council published a report by the Panel on National, Regional, and Local Seismograph Networks of the Committee on Seismology in which the principal recommendation was for the establishment of a national digital seismograph network (NDSN). The Panel Report (Bolt, 1980) addresses both the need and the scientific requirements for the new national network. The purpose o
Authors
Jon Peterson, Charles R. Hutt
Proceedings of Conference XIII, evaluation of regional seismic hazards and risk
The participants in the conference concluded that a great deal of useful research has been performed in the national Earthquake Hazards Reduction
Program by USGS and non-USGS scientists and engineers and that the state-of-knowledge concerning the evaluation of seismic hazards and risk has been advanced substantially. Many of the technical issues raised during the conference are less controversial
Authors
Barbara B. Charonnat
A comparison of ground response in the Los Angeles region from nuclear explosions and the 1971 San Fernando earthquake
No abstract available.
Authors
A. M. Rogers, P. A. Covington, Roger D. Borcherdt
Plastic deformation of MgO(A12O2)1·1 spinel at 0·28TM preliminary results
Prism-shaped single crystals of MgO(Al2O3)n spinel (n < 1.1) have been compressed to significant plastic strain at a temperature of 400°C (∼0·28 TM) in controlled experiments under a superimposed hydrostatic pressure of 1·4 GPa. Compression of crystals approximately parallel to <001>, <111> and <011> resulted in simple yield behaviour at axial stress differences of 1940, 3720, and 4300 MPa respect
Authors
Stephen H. Kirby, P. Veyssiere
Test and calibration of the Seismic Research Observatory
The Seismic Research Observatory (SRO) network is generating an important new data base for seismological research. The SRO systems have extended both the range and resolution of seismic measurements beyond the limits of conventional seismographs and the data are recorded in digital format making it convenient to automate processing and analysis. The SRO network now comprises 12 stations and one a
Authors
Jon Peterson, Charles R. Hutt, L. Gary Holcomb
Preliminary observations of noise spectra at the SRO and ASRO stations
The seismic noise spectra presented in this report were derived from SRO and ASRO station data for the purpose of evaluating the performance of the seismic instruments. They are also useful for constructing a spectral estimate of earth noise at a quiet site based on noise samples obtained from a network of globally distributed sites. It is hoped that the spectra will be usefull for other purposes
Authors
Jon Peterson
Nuclear event time histories and computed site transfer functions for locations in the Los Angeles region
This report presents a collection of Nevada Test Site (NTS) nuclear explosion recordings obtained at sites in the greater Los Angeles, Calif., region. The report includes ground velocity time histories, as well as, derived site transfer functions. These data have been collected as part of a study to evaluate the validity of using low-level ground motions to predict the frequency-dependent response
Authors
A. M. Rogers, P. A. Covington, R.B. Park, R. D. Borcherdt, D. M. Perkins
In-situ measurements of seismic velocity at 27 locations in the Los Angeles, California region
Studies conducted in the San Francisco Bay Region (Gibbs, Fumal and Borcherdt, 1980) have shown that average shear-wave velocity can be readily tied to quantitative estimates of ground motion such as ground amplification and earthquake intensity. Furthermore, when certain physical properties of the geologic materials such as texture, hardness and fracture spacing are observed during geologic mappi
Authors
James F. Gibbs, Thomas E. Fumal, Edward F. Roth
Exploratory trench across the Pleasant Valley Fault, Nevada
An exploratory trench was excavated across the 1915 trace of the Pleasant Valley fault 60 km south of Winnemucca, Nevada, to get information on the history of recent displacements on a fault that had produced a major earthquake in historic time, and on the appearance of such a fault in a trench cut in gravels, sands and silts of an alluvial fan. The trench exposed 16 mappable sedimentary units and
Authors
Manuel G. Bonilla, H. A. Villalobos, R. E. Wallace
Surface faulting near Livermore, California, associated with the January 1980 earthquakes
The earthquakes of 24 January (Ms 5.8) 1980 north of Livermore, California, and 26 January (Ms 5.2), were accompanied by surface faulting in the Greenville fault zone and apparently in the Las Positas fault zone also. The surface faulting was discontinuous and of small displacement. The main rupture within the Greenville fault zone trended about N.38°W. It was at least 4.2 km long and may have ext
Authors
Manuel G. Bonilla, James J. Lienkaemper, J. C. Tinsley
Geodolite measurements of deformation near Hollister, California, 1971-1978
A 24‐station trilateration network spanning the San Andreas and Calaveras faults near Hollister, California, has been surveyed each year between 1971 and 1978, inclusive. Two moderate (ML = 5) earthquakes have occurred within the network during the interval. No convincing preseismic or coseismic anomalies associated with those earthquakes have been identified. The deformation of the network can be
Authors
James C. Savage, W. H. Prescott, Michael Lisowski, N. King