Analysts working at the International Data Centre (IDC) in support of treaty monitoring through the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) spend a significant amount of time reviewing hypothesized seismic events produced by an automatic processing system to ensure a high-quality event bulletin, which is then made available to the member states of the CTBT. Such a system is characterized as forming signal detections from the waveforms recorded at the International Monitoring System (IMS) stations, performing association or grouping of the detections, and finally converging on a set of hypothesized events that can account for the groups of detections. For each...

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