SEISAN earthquake analysis software – background, capabilities, recent developments and future challenges

The SEISAN Earthquake Analysis Software is used widely at regional, national and local seismic networks and by students and researchers in the field of seismology. SEISAN is applied in the monitoring of all kinds of seismic events: Earthquakes, volcanoes, induced and cryo-generated events. SEISAN provides many different programs, from the basic processing and analysis of seismic events at seismological observatories to more advanced research. Based on a flat file database structure it operates on all platforms. SEISAN has undergone steady development since its launch more than 30 years ago. The design and development of SEISAN is and has been conducted in close contact with end users, to ensure fast and efficient workflows. SEISAN includes a comprehensive manual, a tutorial, training exercises and a mailing list where users and experts share information and help each other. SEISAN workshops have been held regularly since the nineties and have in the recent years been supplemented with online web sessions. To the CTBTO national data centres, SEISAN applications are presented at the forum web site. The recent improvements to SEISAN include QuakeML routines for data exchange, near real time event detection and processing and full channel identification and logging of event processing.