Understanding Automated Alarms at HVO's Volcano Watch

The USGS Hawaiian Volcano Observatory (HVO) reports increased seismic activity at Kīlauea, though it is not currently erupting. To monitor volcanic activity, HVO uses automated systems that analyze seismic, infrasound, and ground deformation data to alert scientists of potential eruptions. These systems employ a short-term average/long-term average (STA/LTA) method to detect changes in energy, helping distinguish between volcanic and non-volcanic events. The technology aims to improve eruption detection while minimizing false alarms, enhancing the efficiency of volcanic monitoring.