Error Analysis in the Joint Event Location/Seismic Calibration Inverse Problem

摘要: Abstract : This project is developing new mathematical and computational techniques for analyzing the uncertainty in seismic event locations, as induced by observational errors travel-time models: The analysis being done context of multiple-event inverse problem, which locations multiple events are inferred jointly with corrections event-station paths. premise that one target while others calibration serve to constrain path within some level error. An on coupled location/calibration problem leads notion a "multiple-event" confidence region location, accounts implicitly corrections, including effects locations. approach we have developed considers nonlinearity forward allows use non-Gaussian models data soft or hard constraints parameters. has addressed mainly basic location wherein comprise simple time term each station/phase combination set. We numerical scheme computing regions this based grid search Monte Carlo sampling techniques. Given computationally intensive nature approach, approximations were reduce effort. Experiments from Nevada Test Site validated demonstrated adequacy when not too large. A modification investigating, offers possibility additional efficiency, computation defined Bayesian sense.