Inversion of micro earthquake arrival time data

Abstract

The paper presents a generalised inverse approach to determine the spatio-temporal coordinates of microearthquake events from wave kinematics data consistmg of P-wave arrival times recorded by an array of seismographs. It is shown how a generalised inverse can be constructed for this problem so that iterations required to obtain a least squares solution become stabilised. The analysis further shows how well model parameters seduced from a given data set may be resolved and delineated their correspondence with data errors.