Discrimination of quarry blasts from earthquakes in Northern and Central Egypt using linear and quadratic discriminant functions

Abstract In this study, seismic events in Northern and Central Egypt are inspected to discriminate quarry blasts from earthquakes. We examine a collection of 639 both time frequency domains with local magnitudes 1.5 ≤ ML 3.3 the Egyptian Seismological Network’s event catalogue between 2009 2015. The maximum S-wave P-wave amplitude ratio, complexity (C), spectral ratio (S r ), power (P e ) classifiers as well two statistical approaches, linear discriminant function (LDF) quadratic (QDF), used distinguish earthquakes blasts. usage LDF QDF forms did not result any major differences discrimination. results obtained by -C) best all approaches. findings approaches were compared get final categorization for each event, decision was achieved when at least three four methods provided same category. Egypt, 243 308 could be identified decisions, misclassified events, resulting an overall success rate 99.6%. 48 36 classified decision, percentage 97.6%.