A Seismic Method for the Identification of Underground Nuclear Explosions and Earthquakes at Regional Distances

摘要

Spectral parameters of regional seismic waves of various types are considered in relation to the identification of underground nuclear explosions and earthquakes in the Cis- and Trans-Baikal seismically active region. Application of the inferred criteria to the identification of seismic events in the Altai-Sayan region showed their efficiency. The present study confirms the previously drawn conclusion that the use of a set of seismic parameters for the construction of a probability criterion discriminating between explosions and earth-quakes smoothes regional contrasts of the seismic wavefield. This is due to the fact that, given a large set of parameters involved in the construction of an integral criterion, each region has its own group of effective parameters.