AVO Bogoslof ORANGE/WATCH - No activity observed in satellite, seismic or infrasound data.
Jun 17, 2017 20:45 - No unusual activity has been detected in seismic or infrasound data from the past day. Clouds obscure views of the volcano by satellite. Bogoslof volcano remains at a heightened state of unrest and in an unpredictable condition. Activity may ramp back up with additional explosions producing high-altitude (>15,000 ft) volcanic clouds with little precursory activity. Some previous explosions have been preceded by an increase in earthquake activity that allowed for short-term forecasts of imminent significant explosive activity. Although we are able to detect energetic ...