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Page 4374, results 109326 - 109350

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Publication Extents

Not all publications have extents, not all extents are completely accurate
NCEER seminars on earthquakes
J. Pantelic
1987, Earthquakes & Volcanoes (USGS) (19) 178-179
In May of 1986, the National Center for Earthquake Engineering Research (NCEER) in Buffalo, New York, held the first seminar in its new monthly forum called Seminars on Earthquakes. The Center's purpose in initiating the seminars was to educate the audience about earthquakes, to facilitate cooperation between the NCEER and...
Volcanic processes in the solar system
M. H. Carr
1987, Earthquakes & Volcanoes (USGS) (19) 128-137
Eruptions of ammonia, water, and sulfur. These have become some of the concerns of planetary volcanologists as they try to understand volcanic processes on other planetary bodies. As exploration of the Solar System has continues, we have been confronted with more and more exotic forms of volcanism and have come...
A visit to Stromboli, lighthouse of the Mediterranean
F. M. Bullard
1987, Earthquakes & Volcanoes (USGS) (19) 199-204
About daybreak of the next morning, the perfect cone-shaped outline of Stromboli appeared on the horizon. No "red" glare could be seen, but a prominent column of white vapor was rising from the crater, and at infrequent emitted. As the boat steamed around the edge of Stromboli, the big "scar'...
Earthquakes, January-February 1987
W. J. Person
1987, Earthquakes & Volcanoes (USGS) (19) 102-105
There were two major earthquakes (7.0-7.9) during the first two months of the year. The first, on January 30 in the South Sandwich Islands region, was in an unpopulated area; the second was on February 8 in New Guinea. In the United States the largest earthquake during this reporting period was...
Earthquakes, May-June 1987
W. J. Person
1987, Earthquakes & Volcanoes (USGS) (19) 110-112
There were no major earthquakes (7.0-7.9) during this reporting period but earthquake related deaths were reported in Italy, Iran, and the Philippine Islands. In the United States a moderate earthquake occurred in southern Illinois and caused some damage. ...
One hundred years of earthquake recording at the University of California
B. A. Bolt
1987, Earthquakes & Volcanoes (USGS) (19) 88-92
Seismology is a relatively new science, so there is special reason to celebrate the first permanent earthquake observatories in America, set up by the University of California 100 years ago. The best seismographs then available arrived from England in 1887 and were installed at Lick Observatory on Mt.Hamilton and at the...
Earthquakes, November-December 1986
W. J. Person
1987, Earthquakes & Volcanoes (USGS) (19) 77-79
There was one major earthquake (7.0-7.9) during this reporting period in Taiwan, a magnitude 7.8, which caused deaths and consideralbe damage. Earthquake-related deaths were reported in Bulgaria and in a mine in Poland. There was no significant earthquakes in the United States. ...
Earthquakes, March-April 1987
W. J. Person
1987, Earthquakes & Volcanoes (USGS) (19) 106-110
There was one major earthquake (7.0-7.9) during this reporting period. This quake was located near the coast of northern Chile and had a magnitude of 7.3. Destructive earthquakes also struck Ecuador, Japan, Indonesia and New Zealand. There were no damaging earthquakes in the United States during this period.  ...
Charles F. Richter: A personal tribute
Clarence R. Allen
1987, Earthquakes & Volcanoes (USGS) (19) 146-149
With the death of Charles Richter in 1985, the seismological community lost a renowned colleague, and many of us lost a close friend and advisor. Charles was born on a farm in Ohio in 1900, received his A.B. from Stanford in 1920, and his Ph.D.  from Caltech in 1928. Virtually...
Devastating tsunami inspires efforts to reduce future tsunami destruction
P. A. Lockridge
1987, Earthquakes & Volcanoes (USGS) (19) 60-64
The beacon from landmark Scotch Cap lighthouse pierced the moonless night of April 1, 1946, in Alaska's remote Aleutain Island chain. In the reinforced concrete lighthouse, five men were engaged in various support operations connected with the maintenance of the 80,000 candlepower beam. Perched atop a building constructed 5 years...
Picture windows of opportunity
S. Matt
1987, Earthquakes & Volcanoes (USGS) (19) 174-177
We hate to say that we need a moderate earthquake every once in a while, but experience shows that it surely helps to sell all kinds of seismic safety programs It took the 933 Long Beach earthquake to get the Field Act passed in California requiring the strengthening of our public schools. It...
System designed for issuing landslide alerts in the San Francisco Bay area
D. Finley
1987, Earthquakes & Volcanoes (USGS) (19) 171-173
A system for forecasting landslides during major storms has been developed for the San Francisco Bay area by the U.S Geological Survey and was successfully tested during heavy storms in the bay area during February 1986. Based on the forecasts provided by the USGS, the National Weather Service (NWS) included...
Failure of a massive earthquake-induced landslide dam in Papua New Guinea
J. P. King, I. C. Loveday, R. L. Schuster
1987, Earthquakes & Volcanoes (USGS) (19) 40-47
In many areas of the world, landslides dams are both interesting natural phenomena and significant hazards. A few of the these natural blockages attain heights that rival or exceed those of the largest manmade dams. A landslide dam in its natural state differs from a constructed embankment dam in that...
Use of low-altitude aerial photography to identify submersed aquatic macrophytes
Donald W. Schloesser, Bruce A. Manny, Charles L. Brown, Eugene Jaworski
1987, Conference Paper, Color aerial photography in the plant sciences and related fields : proceedings of the Tenth Biennial Workshop on Color Aerial Photography in the Plant Sciences
The feasibility of using low-altitude aerial photography to identify beds of submersed macrophytes is demonstrated. True color aerial photos and collateral ground survey information for submersed aquatic macrophyte beds at 10 sites in the St.Clair-Detroit River system were obtained in September 1978. Using the photos and collateral ground survey information,...
Predicting baseflow alkalinity as an index to episodic stream acidification and fish presence
David R. DeWalle, Richard S. Dinicola, William E. Sharpe
1987, Journal of the American Water Resources Association (23) 29-35
Regression models to predict baseflow alkalinity from basin hydrogeology were developed and verified for headwater streams on the Laurel Hill anticline in southwestern Pennsylvania. Predicted baseflow alkalinities were then used to estimate sensitivity to acidification and presence of trout (Salvelinus fontinalis) populations for 61 headwater streams. Sensitivity classifications were verified...
Some effects of climate variability on hydrology in western North America
D. H. Peterson, D.R. Cayan, J. S. Dileo-Stevens, T.G. Ross
1987, Conference Paper, The influence of climate change and climatic variability on the hydrologic regime and water resources (Proceedings of the Vancouver Symposium, August 1987), IAHS Publication no. 168
The strong north-south gradient in precipitation along the West Coast makes this region an interesting laboratory for studying the influence of climate on runoff variability in general and riverine chemistry in particular. Interannual fluctuations in large-scale atmospheric circulation and associated precipitation and runoff can produce major disruptions in the "average"...
Sanctuaries for lake trout in the Great Lakes
Jon G. Stanley, Randy L. Eshenroder, Wilbur L. Hartman
1987, Conference Paper, Coastal zone '87 : proceedings of the Fifth Symposium on Coastal and Ocean Management
Populations of lake trout, severely depleted in Lake Superior and virtually extirpated from the other Great Lakes because of sea lamprey predation and intense fishing, are now maintained by annual plantings of hatchery-reared fish in Lakes Michigan, Huron, and Ontario and parts of Lake Superior. The extensive coastal areas of...
Roosevelt elk density in old-growth forests of Olympic National Park
D.B. Houston, Bruce B. Moorhead, R.W. Olson
1987, Northwest Science (61) 220-225
We explored the feasibility of censusing Roosevelt elk from a helicopter in the dense old growth forests of Olympic National Park. WA. Mean observed densities ranged from 8.0-11.6 elk/km2, with coefficients of variation averaging 19.9 percent. A provisional sightability factor of 74 percent suggested that actual mean densities ranged from...
Solute geochemistry of the Snake River plain regional aquifer system, Idaho and eastern Oregon
Warren W. Wood, Walton H. Low
1987, Open-File Report 86-247
Three geochemical methods were used to determine chemical reactions that control solute concentrations in the Snake River Plain regional aquifer system: (1) Calculation of a regional solute balance within the aquifer and of mineralogy in the aquifer framework to identify solute reactions, (2) comparison of thermodynamic mineral saturation indices with...