Physical Science: Discrimination of Earthquakes and Explosions using Short Period Seismic Array Data

Abstract

THE problem of identification of earthquakes and underground explosions on a global basis, for seismic events with body wave magnitudes (mb) below 4.7 has not been solved1,2, although many partially successful discriminants have been proposed. A positive identification parameter based solely on the short period seismic data is interesting as the equivalent long period energy detection threshold is often difficult to achieve, particularly at teleseismic distances.