Analysis of Strong-Motion Accelerograms for Irkutsk from Various Source Zones

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Rubric:     Monitoring the state of natural-technical systems   
Annotation:
The paper deals with seismic hazard to Irkusk associated with different source zones. The average amplitude spectra of accelerations have been obtained for each zone. The spectra have been corrected for epicentral distances and probable magnitude. These amplitude and phase spectra have been used to calculate the expected accelerograms in each source zone for the 1st-category soils. The intensity has been estimated from peak accelerations.