Publications
Filter Total Items: 7238
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: February 1980
The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, S.P. Tilton
Earthquake potential and ground motions for the Pillar Mountain landslide, Kodiak, Alaska
No abstract available.
Authors
George W. Moore, Robert A. Page, John C. Lahr
Seismic properties investigation of the Springer Ranch landslide, Powder River basin, Wyoming
A recent and rapid increase since the mid-1970's in commercial and residential development in the Powder River Basin, Wyoming and Montana, is caused by exploitation of vast coal and other resources in the basin. One geologic hazard to such development is landsliding. A landslide sufficiently representative of others in the area was chosen for detailed seismic studies. Studies of this landslide sho
Authors
C.H. Miller, A.L. Ramirez, T.G. Bullard
Estimating the costs of landslide damage in the United States
Landslide damages are one of the most costly natural disasters in the United States. A recent estimate of the total annual cost of landslide damage is in excess of $1 billion {Schuster, 1978}. The damages can be significantly reduced, however, through the combined action of technical experts, government, and the public.
Before they can be expected to take action, local governments need to have
Authors
Robert W. Fleming, Fred A. Taylor
Evolution of the continental margin of southern Spain and the Alboran Sea
Seismic reflection profiles and magnetic intensity measurements were collected across the southern continental margin of Spain and the Alboran basin between Spain and Africa. Correlation of the distinct seismic stratigraphy observed in the profiles to stratigraphic information obtained from cores at Deep Sea Drilling Project site 121 allows effective dating of tectonic events. The Alboran Sea basi
Authors
William P. Dillon, James M. Robb, H. Gary Greene, Juan Carlos Lucena
Polarization of bay-type geomagnetic disturbances in the Rio Grande Rift, New Mexico
No abstract available.
Authors
James N. Towle
Tools to avoid landslide hazards and reduce damage
No abstract available.
Authors
William J. Kockelman
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
Landslides and related features, Virginia and West Virginia: Charlottesville 1° x 2° sheet
No abstract available.
Authors
Robert J. Hackman, Roger E. Thomas
Speculations on processes responsible for mesoscale current lineations on the continental shelf, southern California
A side-scan sonar survey of San Pedro shelf, California, reveals areas of mesoscale current lineations oriented approximately north-northeast in water depths of 20-25 m. Widths of sand ribbons range from 40 to 120 m and intervening erosional furrows, from 15 to 50 m. A conceptual model shows that the scale and orientation of current lineations agree with the dimensions and axial directions of Lang
Authors
Herman A. Karl
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