This text 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.

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.- On the realtime monitoring of the long-period seismic wavefield.

Methods and applications of signal processing in seismic network operations are described by the specialists in the fields of signal processing problems in seismology, in particular in the the current seismological networks world. This book addresses successful applications of signal processing in the seismic networks and the time series analysis. The practices included in this book are also related to various stages of development of seismic networks and time series analysis. This book is a valuable handbook for seismologists and engineers working in the seismic network as well as being a reference book for university level researchers in the field of signal processing in seismology.

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