METHODS AND APPARATUSES FOR MEASURING EPICENTER LOCATION BASED ON LASER INTERFEROMETER

摘要

The present invention relates to a method and an apparatus for measuring an epicenter location based on a laser interferometer, which comprises the following steps of: measuring a strength signal with respect to seismic waves by using a heterodyne laser interferometer; calculating PS time which is an arrival time difference between P waves and S waves by using the measured strength signal; measuring an epicenter distance between the epicenter and each observation station by using the calculated PS time; and measuring an epicenter location by using an epicenter distance difference between the measured epicenter distance and a standard epicenter distance measured from a standard observation station.