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Page 5348, results 133676 - 133700

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Earthquakes and plate tectonics
H. Spall
1977, Earthquake Information Bulletin (USGS) (9) 14-17
The world's earthquakes are not randomly distributed over the Earth's surface. They tend to be concentrated in narrow zones. Why is this? And why are volcanoes and mountain ranges also found in these zones too? An explanation is to be found in plate tectonics, a concept which has revolutionized thinking in...
Introductory remarks on NEIS from Lou Pakiser
H. Spall
1977, Earthquake Information Bulletin (USGS) (9) 4-6
Lou Pakiser is Chief of the Branch of Seismicity and Earth Structure of the U.S Geological Survey at Denver, Colo. He is responsible for managing the National Earthquake Information Service (NEIS), the Albuquerque Seismological Laboratory, other U.S Seismic observatories, and a reserach program related to global seismology....
Earthquake history of South Dakota
C. A. von Hake
1977, Earthquake Information Bulletin (USGS) (9) 35-36
Twelve earthquakes of intensity V or greater (Modified Mercalli scale) have centered within the borders of South Dakota. All the shocks were rather localized, except that of 1911 which was felt over an area of approximately 100,000 km2. Some earthquakes from neighboring States were felt strongly in South Dakota. ...
Earthquake history of Tennessee
C. A. von Hake
1977, Earthquake Information Bulletin (USGS) (9) 37-39
 The western part of the State was shaken strongly by the New Madrid, Mo., earthquakes of 1811-12 and by earthquakes in 1843 and 1895. The area has also experienced minor shocks. Additional activity has occurred in the eastern part of the State, near the North Carolina border. Forty shocks of...
Earthquake history of Virginia
C. A. von Hake
1977, Earthquake Information Bulletin (USGS) (9) 28-30
Virginia is a State of considerable seismic activity, although the earthquakes are rarely strong. Thirty-five shocks, intensity MM V or greater (Modified Mercalli Scale), are listed with epicenters within its borders. The locations of several of the older events are not precise; thus, the above count i subject to alteration....
Spokane Valley-Rathdrum Prairie aquifer, Washington and Idaho
B. W. Drost, Harold R. Seitz
1977, Open-File Report 77-829
The Spokane Valley-Rathdrum Prairie aquifer is composed of unconsolidated Quaternary glaciofluvial deposits underlying an area of about 350 square miles. Transmissivities in the aquifer range from about 0.13 million to 11 million feet squared per day and ground-water velocities exceed 60 feet per day in some areas. The water-table gradient...
Can we control earthquakes?
B. Raleigh
1977, Earthquake Information Bulletin (USGS) (9) 4-7
In 1966, it was discovered that high pressure injection of industrial waste fluids into the subsurface near Denver, Colo., was triggering earthquakes. While this was disturbing at the time, it was also exciting because there was immediate speculation that here at last was a mechanism to control earthquakes.  ...
Earthquake history of Texas
C. A. von Hake
1977, Earthquake Information Bulletin (USGS) (9) 30-32
Seventeen earthquakes, intensity V or greater, have centered in Texas since 1882, when the first shock was reported. The strongest earthquake, a maximum intensity VIII, was in western Texas in 1931 and was felt over 1 165 000 km 2. Three shocks in the Panhandle region in 1925, 1936, and 1943...