Accession Number : ADA255667


Title :   Studies in Seismic Verification


Descriptive Note : Final rept. 1 Jul 1989-31 Mar 1992


Corporate Author : MACKAY SCHOOL OF MINES RENO NV SEISMOLOGICAL LAB


Personal Author(s) : Priestley, Keith


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a255667.pdf


Report Date : May 1992


Pagination or Media Count : 138


Abstract : This study describes four related research efforts. Section A reviews P-wave spectral models for earthquakes and explosions to assess their implications for high frequency seismic discrimination and test these on North American and central Asia data sets. Section B describes some simple forward modelling to quantify both the moment and mechanism of the tectonic release of the Soviet JVE. Using 10-20 sec surface wave data the tectonic release moment is found to be 10-20% of the explosion moments and have a strike-slip mechanism. Section C describes a new spectral model for seismic radiation of a circular crack failing in tension. Section D describes a study of the tectonics of the South Caspian region. Earthquake mechanisms show over-thrusting of the South Caspian basin from the north, west, and south. The combined effect will lead to the eventual destruction of the South Caspian Basin and the possible formulation of intermediate depth seismic zone within the continental interior similar to the Hindu Kush.


Descriptors :   *NUCLEAR EXPLOSIONS , *EXPLOSION EFFECTS , *SEISMOLOGY , *PRIMARY WAVES(SEISMIC WAVES) , *EARTHQUAKES , USSR , HIGH FREQUENCY , SHOCK WAVES , CRACKING(FRACTURING) , SEISMIC WAVES , CASPIAN SEA , SEISMOGRAPHS , TECTONICS , NORTH AMERICA , ASIA , AMPLITUDE , NUCLEAR EXPLOSION DETECTION , SEISMIC DATA , WAVEFORMS , EXPLOSIONS , UNDERGROUND EXPLOSIONS , MOMENTS


Subject Categories : Seismology
      Nuclear Weapons


Distribution Statement : APPROVED FOR PUBLIC RELEASE