A further development of the mikhnevo small aperture seismic array for new seismological studies

This paper describes a further development of the Mikhnevo small-aperture seismic array of IDG RAS for new seismological studies including seismic event detection with real time cross-correlation analysis, detailed research of seismogenic zones with low seismic emission, development of always-on automated seismic monitoring system for critical infrastructure facilities, automated real time frequency-wavenumber-analysis. The new SSD-3 seismic digitizer is presented in this paper has been developing specially for small aperture seismic arrays. This 24-bit digitizer has 3 differential inputs and provides high precision time synchronization of data acquisition needed for coherency of small aperture seismic array. The algorithm of automated full featured seismic data processing system for the Mikhnevo small-aperture seismic array are also describing. This algorithm combines different types of detection, identification and location of seismic events including frequency-wavenumber-analysis, phase association and cross-correlation analysis. It also provides real time transmission with de facto world standard Seedlink protocol.