AVO Bogoslof ORANGE/WATCH - No significant activity in seismic, infrasound or satellite data.
Jul 17, 2017 21:43 - No activity was detected in seismic, infrasound, or lightning data over the past day. Nothing significant observed in cloudy satellite images. Bogoslof volcano remains at a heightened state of unrest and in an unpredictable condition. Activity can escalate quickly with additional explosions producing high-altitude (>15,000 ft) volcanic clouds with little to no detectable 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 ...