Some helminth parasites of the American bald eagle
A.A. Kocan, L. N. Locke
1974, Journal of Wildlife Diseases (10) 8-10
Bald eagles (Haliaeetus leucocephalus) found dead or moribund in the United States and Canada and submitted to Patuxent Wildlife Research Center were examined for helminth parasites. Nine genera of helminths were reported which include new host records for Clinostomum complanatum, Neogogatea pandionis, Centrorhynchus sp., Serratospiculum amaculata, Capillaria contorta, and Habronema americanum....
Landslides
Water Resources Division, U.S. Geological Survey
1974, Report
The United States Geological Survey
Water Resources Division, U.S. Geological Survey
1974, Report
The sea lamprey and its control
R. Saalfeld, J.H. Howell
1974, Book chapter, Michigan Fisheries Centennial Report, 1873-1973, No. 6
Abstract not submitted to date...
Teleseismic studies indicate existence of deep magma chamber below Yellowstone National Park
H. M. Iyer
1974, Earthquake Information Bulletin (USGS) (6) 3-7
The secrets of Yellowstone National Park's spectacular geysers and other hot water and steam phenomena are being explored by the U.S Geological Survey with the aid of distant earthquakes (teleseisms). For some time geologists have known that the remarkable array of steam and hot water displays, for which the park...
New cooperative seismograph networks established in southern California
D.P. Hill
1974, Earthquake Information Bulletin (USGS) (6) 8-11
Southern California has more active faults located close to large, urban population centers than any other region in the United States. Reduction of risk to life and property posed by potential earthquakes along these active faults is a primary motivation for a cooperative earthquake research program between the U.S Geological...
Earthquake prediction; new studies yield promising results
R. Robinson
1974, Earthquake Information Bulletin (USGS) (6) 14-17
On Agust 3, 1973, a small earthquake (magnitude 2.5) occurred near Blue Mountain Lake in the Adirondack region of northern New York State. This seemingly unimportant event was of great significance, however, because it was predicted. Seismologsits at the Lamont-Doherty geologcal Observatory of Columbia University accurately foretold the time, place,...
Seismicity and earthquake hazards of the Wasatch Front, Utah
H. Spall
1974, Earthquake Information Bulletin (USGS) (6) 12-17
The impressive topographic break at the base of the Wasatch Range immediately east of Salt Lake City, Utah, marks the location where Mormon colonizer Brigham Young said in 1847. "This is the place" Actually, "the place" is termed the Wasatch Front because the Wasatch Range to the east, which rises...
New seismic study begins in Puerto Rico
Arthur C. Tarr
1974, Earthquake Information Bulletin (USGS) (6) 23-26
A new seismological project is now underway in Puerto Rico to provide information needed for accurate assessment of the island's seismic hazard. The project should also help to increase understanding of the tectonics and geologic evolution of the Caribbean region. The Puerto Rico Seismic Program is being conducted by the...
Earthquake history of Nevada
C. A. von Hake
1974, Earthquake Information Bulletin (USGS) (6) 26-29
Since 1852, more than 30 shocks of intensity VI or greater (Modified Mercalli scale) have occurred in western Nevada. At least three of these were classified as intensity X. In addition, seven earthquakes (intensity VI or greater) were centered in the eastern part of the State. Almost 2,000 other shocks...
Earthquake history of Nebraska
C. A. von Hake
1974, Earthquake Information Bulletin (USGS) (6) 32-33
Nebraska is in a region of moderate seismicity occasionally punctuated by rather strong earthquakes. Most of the State is seismic risk zone 1, with a small part in the southeast corner in risk zone 2. the first significant earthquake felt in Nebraska occurred in 1867, the year that statehood was...
Turkey’s North Anatolian Fault; a comparison with the San Andreas Fault
J. W. Dewey
1974, Earthquake Information Bulletin (USGS) (6) 12-16
The design earthquake and earthquake response spectra
W. W. Hays
1974, Earthquake Information Bulletin (USGS) (6) 18-22
A geologic and geophysical study of the Charleston, South Carolina, earthquake zone
B.B. Higgins, P. Popenoe
1974, Earthquake Information Bulletin (USGS) (6) 16-23
A maximum Modified Mercalli intensity of X was reported in Charleston. Damage to buildings was extensive, railroads were made impassable, and communications were disrupted. During the earthquake 27 people were killed, and 56 later died as a result of exposure and injuries sustained during the shaking. The earthquake was reported...
The California geodimeter network; measuring movement along the San Andreas Fault
J.C. Savage
1974, Earthquake Information Bulletin (USGS) (6) 3-7
Following the great California earthquake of 1906 H. F. Reid, a contemporary seismologist, proposed the elastic rebound theory which in effect says that earthquake potential arises from the accumulation of elastic strain within the Earth's crust, just as the stretching of a rubberband creates the potential for violent rebound upon...
Scientists probe Earth’s secrets at the Hawaiian Volcano Observatory
J. D. Unger
1974, Earthquake Information Bulletin (USGS) (6) 3-11
The Hawaiian Volcano Observatory (HVO) sits on the edge of Kilauea Caldera at the summit of Kilauea Volcao, one of the five volcanoes on the island of Hawaii, the largest island in the Hawaiian Islands chain. Of the five, only Kilauea and Mauna Loa have been active in the past...
Comparative toxicity of two Iodophors to rainbow trout eggs
Donald F. Amend
1974, Transactions of the American Fisheries Society (103) 73-78
Toxicity of Wescodyne(R) and Betadine(R) to eyed eggs was not adversely affected by water hardness (as calcium and magnesium) or by exposure periods up to 60 min. Both iodophors were much more toxic below pH 6.0 than at pH 8.0. In general Wescodyne was slightly more toxic than Betadine. Significant egg loss...
Earthquake history of Montana
C. A. von Hake
1974, Earthquake Information Bulletin (USGS) (6) 30-35
Montana is one of the most seismically active States in the Union. Since 1925, the State has experienced five shocks that reached intensity VIII or greater (Modified Mercalli Scale). During the same interval hundreds of less severe tremors were felt within the State. Montana's earthquake activity is concentrated mostly in...
Computer systems for automatic earthquake detection
S.W. Stewart
1974, Earthquake Information Bulletin (USGS) (6) 17-21
U.S Geological Survey seismologists in Menlo park, California, are utilizing the speed, reliability, and efficiency of minicomputers to monitor seismograph stations and to automatically detect earthquakes. An earthquake detection computer system, believed to be the only one of its kind in operation, automatically reports about 90 percent of all local...
Locating the world’s earthquakes
J.S. Derr
1974, Earthquake Information Bulletin (USGS) (6) 11-15
Earthquake history of Missouri
C. A. von Hake
1974, Earthquake Information Bulletin (USGS) (6) 24-26
Most of Missouri's earthquake activity has been concentrated in the southeast corner of the State, which lies within the New Madrid seismic zone. As recently as Merch 29, 1972, the region was jolted by a magnitude 3.7 shock that was felt over a 168,000 square kilometre area including parts of...
Earthquake history of Mississippi
C. A. von Hake
1974, Earthquake Information Bulletin (USGS) (6) 20-21
Since its admission into the Union in 1817, Mississippi has had only four earthquakes of intensity V or greater within its borders. Although the number of earthquakes known to have been centered within Mississippi's boundaries is small, the State has been affected by numerous shocks located in neighboring States. In...
Earthquake history of Minnesota
C. A. von Hake
1974, Earthquake Information Bulletin (USGS) (6) 28-29
French traders and missionaries were active in the region that is now Minnesota as early as the 1650's; however, settlement proceeded slowly and the area was not organized as a territory until 1849. Minnesota was admitted to the Union as the 32nd State on May 11, 1858. the earthquake history...
Appraising volcanic hazards of the Cascade Range of the northwestern United States
D. R. Crandell, D. R. Mullineaux
1974, Earthquake Information Bulletin (USGS) (6) 3-10
Earthquakes, November-December 1973
W. J. Person
1974, Earthquake Information Bulletin (USGS) (6) 26-27
A number of significant earthquakes happened during the last 2 months of 1973. Two major earthquakes (magnitude 7.0-7.9) occurred in the New Hebrides Islands, bringing the final major earthquake total for the year to 11, somewhat below the annual average which is 18. One great earthquake (magntidue 8.0 and above)...
