|
|
 |
|||||||||||||||||
|
|||||||||||||||||
 |
|||||||||||||||||
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
TELEDYNE GEOTECH, 314 MONTGOMERY STREET, ALEXANDRIA, VIRGINIA 22314
Abstract
Spectra of teleseismic, short-period P waves from nuclear explosions show clear, path-related differences in their high-frequency falloff rates. P waves from Kazakh explosions commonly show significant seismic energy above the frequency of 5 Hz when recorded in shield regions. Peaceful nuclear explosions in the tectonically stable areas of the USSR have similar properties, together with the Amchitka explosions and SALMON. Nuclear explosions in the Western United States, Algeria, and French Polynesia show much less high frequency energy in their P-wave spectra, and signal energy above 5 Hz is usually not seen. We attribute these variations to lateral changes in the anelastic attenuation properties of the upper mantle. For the events in the contiguous United States, this interpretation is confirmed by the results of reciprocal measurements of Q. About 500 P-wave spectra, not including those utilized in the reciprocal measurements, were used to estimate the contribution to 
of the upper mantle Q structures under a number of nuclear test sites and observatories.
This article has been cited by other articles:
|
|
 |
|
  K. F. Priestley and H. J. Patton Calibration of mb(Pn), mb(Lg) scales and transportability of the M0:mb discriminant to new tectonic regions Bulletin of the Seismological Society of America, October 1, 1997; 87(5): 1083 - 1099. [Abstract] [PDF]
|
|
|
|
|
|
D. S. Sharrock, I. G. Main, and A. Douglas Observations of Q from the northwest Pacific subduction zone recorded at teleseismic distances Bulletin of the Seismological Society of America, February 1, 1995; 85(1): 237 - 253. [Abstract] [PDF]
|
|
|
|
|
|
H. J. AL-SHUKRI and B. J. MITCHELL Three-dimensional attenuation structure in and around the New Madrid seismic zone Bulletin of the Seismological Society of America, June 1, 1990; 80(3): 615 - 632. [Abstract] [PDF]
|
|
|
|
|
|
T. ZHU, K.-Y. CHUN, and G. F. WEST High-frequency P-wave attenuation determination using multiple-window spectral analysis method Bulletin of the Seismological Society of America, August 1, 1989; 79(4): 1054 - 1069. [Abstract] [PDF]
|
|
|
|
|
|
K. L. MCLAUGHLIN, A. C. LEES, Z. A. DER, and M. E. MARSHALL Teleseismic spectral and temporal M0 and {Psi}{infty} estimates for four French explosions in southern Sahara Bulletin of the Seismological Society of America, August 1, 1988; 78(4): 1580 - 1596. [Abstract] [PDF]
|
|
|
|
|
|
S. E. HOUGH, J. G. ANDERSON, J. BRUNE, F. VERNON III, J. BERGER, J. FLETCHER, L. HAAR, L. HANKS, and L. BAKER Attenuation near Anza, California Bulletin of the Seismological Society of America, April 1, 1988; 78(2): 672 - 691. [Abstract] [PDF]
|
|
|
|
|
|
M. C. WALCK Spectral estimates of teleseismic P-wave attenuation to 15 Hz Bulletin of the Seismological Society of America, April 1, 1988; 78(2): 726 - 740. [Abstract] [PDF]
|
|
|
|
|
|
R. W. BURGER, T. LAY, and L. J. BURDICK Average Q and yield estimates from the Pahute Mesa test site Bulletin of the Seismological Society of America, August 1, 1987; 77(4): 1274 - 1294. [Abstract] [PDF]
|
|
|
|
|
|
I. N. GUPTA and R. R. BLANDFORD A study of P waves from Nevada Test Site explosions: Near-source information from teleseismic observations? Bulletin of the Seismological Society of America, June 1, 1987; 77(3): 1041 - 1056. [Abstract] [PDF]
|
|
|
|
|
|
A. DOUGLAS Differences in upper mantle attenuation between the Nevada and Shagan River Test Sites: Can the effects be seen in P-wave seismograms? Bulletin of the Seismological Society of America, February 1, 1987; 77(1): 270 - 276. [PDF]
|
|
|
|
|
|
O. W. NUTTLI Lg magnitudes of selected East Kazakhstan underground explosions Bulletin of the Seismological Society of America, October 1, 1986; 76(5): 1241 - 1251. [Abstract] [PDF]
|
|
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
