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Title: SEISMIC WAVES FROM AN UNDERGROUND EXPLOSION IN A SALT BED

Abstract

Seismic waves resulting from a 5 kt nuclear detonation 1200 feet deep in a salt bed near Carlsbad, New Mexico, were measured by strong-motion seismographs operated by the Coast and Geodetic Survey on the surface in the distance range from 0.5 to 8.8 miles and underground in a potash mine 8.7 to 11.2 miles distant. In addition, many temporary and permanent seismographs were operated on a continentwide and world-wide basis. Ground particle accelerations exceeded those for the Logan shot, a like detonation in tuff, by a factor of about 4, and accelerations underground in the salt bed were about half those on the nearby surface. There was no evidence of damaging accelerations in nearby commercial operations or dwellings. Nearby transient ground particle displacements were about the same as those for the Logan shot, except the frequencies were higher. Attenuation with distance across the plains to the east was relatively low as compared with similar effects in the mountain and plateau area toward the west. Upper mantle travel times likewise were higher toward the east, 8.3 to 8.4 km/ sec, as compared with 7.8 to 8.1 km/sec toward the north, west, and northwest. The estimated magnitude of the Gnome shot wasmore » from 4.6 to 5.0, depending on the choice of data. (auth)« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Coast and Geodetic Survey, Washington, D.C.
OSTI Identifier:
4787089
Report Number(s):
PNE-110P
NSA Number:
NSA-16-012804
DOE Contract Number:  
AT(29-2)-746
Resource Type:
Technical Report
Resource Relation:
Other Information: Project GNOME. Orig. Receipt Date: 31-DEC-62
Country of Publication:
United States
Language:
English
Subject:
GENERAL AND MISCELLANEOUS; DISTANCE; FREQUENCY; LOSSES; MEASURED VALUES; MOTION; NUCLEAR EXPLOSIONS; OSCILLATIONS; PARTICLES; POTASSIUM CARBONATES; PROJECT GNOME; PROJECT HARDTACK; SALTS; SEISMOLOGY; SURFACES; TRANSIENTS; UNDERGROUND EXPLOSIONS; VELOCITY

Citation Formats

Carder, D S, Mickey, W V, Murphy, L M, Cloud, W K, Jordan, J N, and Gordan, D W. SEISMIC WAVES FROM AN UNDERGROUND EXPLOSION IN A SALT BED. United States: N. p., 1962. Web.
Carder, D S, Mickey, W V, Murphy, L M, Cloud, W K, Jordan, J N, & Gordan, D W. SEISMIC WAVES FROM AN UNDERGROUND EXPLOSION IN A SALT BED. United States.
Carder, D S, Mickey, W V, Murphy, L M, Cloud, W K, Jordan, J N, and Gordan, D W. Thu . "SEISMIC WAVES FROM AN UNDERGROUND EXPLOSION IN A SALT BED". United States.
@article{osti_4787089,
title = {SEISMIC WAVES FROM AN UNDERGROUND EXPLOSION IN A SALT BED},
author = {Carder, D S and Mickey, W V and Murphy, L M and Cloud, W K and Jordan, J N and Gordan, D W},
abstractNote = {Seismic waves resulting from a 5 kt nuclear detonation 1200 feet deep in a salt bed near Carlsbad, New Mexico, were measured by strong-motion seismographs operated by the Coast and Geodetic Survey on the surface in the distance range from 0.5 to 8.8 miles and underground in a potash mine 8.7 to 11.2 miles distant. In addition, many temporary and permanent seismographs were operated on a continentwide and world-wide basis. Ground particle accelerations exceeded those for the Logan shot, a like detonation in tuff, by a factor of about 4, and accelerations underground in the salt bed were about half those on the nearby surface. There was no evidence of damaging accelerations in nearby commercial operations or dwellings. Nearby transient ground particle displacements were about the same as those for the Logan shot, except the frequencies were higher. Attenuation with distance across the plains to the east was relatively low as compared with similar effects in the mountain and plateau area toward the west. Upper mantle travel times likewise were higher toward the east, 8.3 to 8.4 km/ sec, as compared with 7.8 to 8.1 km/sec toward the north, west, and northwest. The estimated magnitude of the Gnome shot was from 4.6 to 5.0, depending on the choice of data. (auth)},
doi = {},
url = {https://www.osti.gov/biblio/4787089}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1962},
month = {2}
}

Technical Report:
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