Author: D. S. CARDER
Publisher:
ISBN:
Category :
Languages : en
Pages : 83
Book Description
Ground effects resulting from certain HARDTACK II underground explosions were measured by strong-motion and teleseismic seismographs from 2000 feet to distances of nearly 100 miles. In addition, many temporary seismographs were operated by a number of organizations to distances of nearly 2400 miles, and routine seismographs continued to operate on a world wide basis. Some of the results are given in this report. An energetic wave believed reflected from the surface near the source was recorded by some of the strong-motion seismographs. It is out of phase with the initial wave and follows it by about a quarter second. From the ground effects standpoint, the Blanca shot was equivalent to a magnitude 4.8 earthquake, and seismic energy contained in a wave 0.8 km. from the source is believed to contain about 0.4 percent of the yield energy. The Logan and Rainier shots were respectively equivalent to magnitude 4.5 and 4.1 earthquakes and corresponding seismic energies contained respectively 0.5 and 0.3 percent of the yield energy.
Surface Motions from Underground Explosions. Appendix A. Response Spectrum Analysis of Records from Events Blanca and Logan
Author: D. S. CARDER
Publisher:
ISBN:
Category :
Languages : en
Pages : 83
Book Description
Ground effects resulting from certain HARDTACK II underground explosions were measured by strong-motion and teleseismic seismographs from 2000 feet to distances of nearly 100 miles. In addition, many temporary seismographs were operated by a number of organizations to distances of nearly 2400 miles, and routine seismographs continued to operate on a world wide basis. Some of the results are given in this report. An energetic wave believed reflected from the surface near the source was recorded by some of the strong-motion seismographs. It is out of phase with the initial wave and follows it by about a quarter second. From the ground effects standpoint, the Blanca shot was equivalent to a magnitude 4.8 earthquake, and seismic energy contained in a wave 0.8 km. from the source is believed to contain about 0.4 percent of the yield energy. The Logan and Rainier shots were respectively equivalent to magnitude 4.5 and 4.1 earthquakes and corresponding seismic energies contained respectively 0.5 and 0.3 percent of the yield energy.
Publisher:
ISBN:
Category :
Languages : en
Pages : 83
Book Description
Ground effects resulting from certain HARDTACK II underground explosions were measured by strong-motion and teleseismic seismographs from 2000 feet to distances of nearly 100 miles. In addition, many temporary seismographs were operated by a number of organizations to distances of nearly 2400 miles, and routine seismographs continued to operate on a world wide basis. Some of the results are given in this report. An energetic wave believed reflected from the surface near the source was recorded by some of the strong-motion seismographs. It is out of phase with the initial wave and follows it by about a quarter second. From the ground effects standpoint, the Blanca shot was equivalent to a magnitude 4.8 earthquake, and seismic energy contained in a wave 0.8 km. from the source is believed to contain about 0.4 percent of the yield energy. The Logan and Rainier shots were respectively equivalent to magnitude 4.5 and 4.1 earthquakes and corresponding seismic energies contained respectively 0.5 and 0.3 percent of the yield energy.
Surface Motions from Underground Explosiongs with Appendix A, Response Spectrum Analysis of Records from Events
Author: D. S. Carder
Publisher:
ISBN:
Category : Explosions
Languages : en
Pages : 74
Book Description
Publisher:
ISBN:
Category : Explosions
Languages : en
Pages : 74
Book Description
Operation HARDTACK.
Author:
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 86
Book Description
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 86
Book Description
Surface Motions from an Underground Explosion
Author: Dean S. Carder
Publisher:
ISBN:
Category : Operation Plumbbob, Nev., 1957
Languages : en
Pages : 54
Book Description
Publisher:
ISBN:
Category : Operation Plumbbob, Nev., 1957
Languages : en
Pages : 54
Book Description
Technical Abstract Bulletin
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 908
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 908
Book Description
Nuclear Science Abstracts
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1058
Book Description
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1058
Book Description
Government-wide Index to Federal Research & Development Reports
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 720
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 720
Book Description
U.S. Government Research & Development Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1444
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1444
Book Description
Peaceful Uses of Nuclear Explosions
Author:
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 506
Book Description
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 506
Book Description
Surface Motions from an Underground Explosion
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 60
Book Description
Seismic effects of Rainier, a 1.7-kt nuclear shot detonated 900 feet underground, were measured in terms of ground surface motion at ten strong-motion seismograph stations located 1200 to 45,000 feet from the source. In addition, records were borrowed from seven teleseismic stations located 100 to 300 miles from the source. Recorded accelerations attenuated from a maximum singlecomponent value of 2.6 g at 1280 feet to 0.009 g at 17,640 feet. Gutenberg-Richter magnitude of Rainier, calculated as for a natural earthquake from seven WoodAnderson seismograph records, was 4.6. Earthquakes of 4.6 magnitude are felt up to 60 miles from the epicenter, however, Rainier was felt by only a few observers at 21/2 miles. Seismologists at established teleseismic stations were able to pick out Rainier's elastic wave signature on seismograms at considerable distance. Very small amplitude waves from Rainier were found on the Coast and Geodetic Survey, College, Alaska, seismogram, 3600 km away, although attempts in the eastern United States at distances of 2000 to 3000 km, using conventional instruments, were not successful.
Publisher:
ISBN:
Category :
Languages : en
Pages : 60
Book Description
Seismic effects of Rainier, a 1.7-kt nuclear shot detonated 900 feet underground, were measured in terms of ground surface motion at ten strong-motion seismograph stations located 1200 to 45,000 feet from the source. In addition, records were borrowed from seven teleseismic stations located 100 to 300 miles from the source. Recorded accelerations attenuated from a maximum singlecomponent value of 2.6 g at 1280 feet to 0.009 g at 17,640 feet. Gutenberg-Richter magnitude of Rainier, calculated as for a natural earthquake from seven WoodAnderson seismograph records, was 4.6. Earthquakes of 4.6 magnitude are felt up to 60 miles from the epicenter, however, Rainier was felt by only a few observers at 21/2 miles. Seismologists at established teleseismic stations were able to pick out Rainier's elastic wave signature on seismograms at considerable distance. Very small amplitude waves from Rainier were found on the Coast and Geodetic Survey, College, Alaska, seismogram, 3600 km away, although attempts in the eastern United States at distances of 2000 to 3000 km, using conventional instruments, were not successful.