Methods and Applications of Signal Processing in Seismic Network Operations [Paperback]

This book deals with various theoretical and practical methods for real-time automatic signal processing in local (and regional) seismic networks and associated software developments, including extraction of small seismic signal from noisy observation by piecewise modeling and self-organizing state space modeling, determination of arrival time of S wave by locally multivariate stationary AT modeling, automatic interpretation of seismic signal by combining cumulativ sum and simulative annealing (CUSUM-SA), AR-filtering for local and teleseismic events, the currently high sensitivity seismic network running in Japan (Hi-net), PC-based computer package for automatic detection and location of earthquakes, real-time automatic seismic data-processing in seismic network running in eastern Sicily (Italy), the SIL (South Iceland Lowland) seismological data acquisition system and routine analysis in Iceland and Sweden.Extraction of small seismic signal by state space modeling.- Multivariate time series model to estimate arrival times of S waves.- Automatic interpretation of regional short period seismic signals using CUSUM-SA algorithms.- Application of Autoregressive processing to the analysis of seismograms.- Hi-net: High sensitivity seismograph network, Japan.- A PC-based computer package for automatic detection and location of earthquakes: Application to a seismic network in eastern sicity (Italy).- The SIL seismological data acquisition system As operated in Iceland and in Sweden.- Microearthquake analysis at local seismic networks in Iceland and Sweden and earthquake precursors.- Single station real-time P and S phase pickers for seismic observatories.- Recognizing explosion sites using self-organizing properties of their temporal and spatial shooting practice.- Automatic hypocenter location at times of extremely high seismic activity.- Application of pattern recognition to seismic event discrimination.- Extraction of hydrological anomalies related to earthquakes.- OnlãÚ