Publications
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Satellite relay telemetry of seismic data in earthquake prediction and control Satellite relay telemetry of seismic data in earthquake prediction and control
The Satellite Telemetry Earthquake Monitoring Program was started in FY 1968 to evaluate the applicability of satellite relay telemetry in the collection of seismic data from a large number of dense seismograph clusters laid out along the major fault systems of western North America. Prototype clusters utilizing phone-line telemetry were then being installed by the National Center for...
Authors
Wayne H. Jackson, Jerry P. Eaton
Estimated relative abundance of landslides in the San Francisco Bay region, California Estimated relative abundance of landslides in the San Francisco Bay region, California
No abstract available.
Authors
D. H. Radbruch-Hall, C. M. Wentworth
Preliminary photointerpretation and damage maps of landslide and other surficial deposits in northeastern San Jose, California Preliminary photointerpretation and damage maps of landslide and other surficial deposits in northeastern San Jose, California
No abstract available.
Authors
T. H. Nilsen, E. E. Brabb
Mechanism of the Chilean Earthquakes of May 21 and 22, 1960 Mechanism of the Chilean Earthquakes of May 21 and 22, 1960
The Chilean earthquake sequence of May 21–22, 1960, was accompanied by linear zones of tectonic warping, including both uplift and subsidence relative to sea level. The region involved is more than 200 km wide and about 1000 km long, and lies along the continental margin between latitude 37° and 48° S. Significant horizontal strains accompanied the vertical movements in parts of the...
Authors
George Plafker, James C. Savage
Measurement of ultrasonic velocities in solids under hydrostatic pressure Measurement of ultrasonic velocities in solids under hydrostatic pressure
An ultrasonic method for determining velocity has been developed that is independent of phase‐change errors due to reflection of specimen waves from coupling films. The method also eliminates the possibility of error due to conditions of nonhydrostatic stress at a specimen‐transducer or specimen‐delay line interface. Preliminary data are given for Alcoa 2024‐T4 aluminum and are compared...
Authors
L. Peselnick
Seismic refraction study of crustal structure in the western United States Seismic refraction study of crustal structure in the western United States
A network of 64 seismic-refraction profiles recorded by the U.S. Geological Survey in California and Nevada and adjacent areas of Idaho, Wyoming, Utah, and Arizona from 1961 to 1963 was re-interpreted. From record sections compiled for all profiles, a basic travel-time diagram can be derived. In addition to the first arrivals on profiles in the Snake River Plain, the northern Basin and...
Authors
Claus Prodehl
Interstitial water studies on small core samples, Deep Sea Drilling Project, Leg 3 Interstitial water studies on small core samples, Deep Sea Drilling Project, Leg 3
Eleven samples of fluids which had been squeezed on board ship, and four, packaged sediment samples were received in our laboratories. As in Leg 2, the volumes of fluid available were scanty and did not permit multiple determinations of constituents in many of the samples; in Hole 21 the fluid available sufficed only for refractometer readings (a few tenths of a milliliter). Therefore...
Authors
F.T. Manheim, K.M. Chan, D. Kerr, W. Sunda