USGS Volcano Hazards Program Volcano Update
AVO update page and observatory web site
Cleveland Volcano has been obscured by clouds over the past 24 hours and no evidence of eruptive activity has been observed in satellite data or web camera views of the volcano. No other activity has been reported.
Sudden explosions of blocks and ash remain possible with little or no warning, although the last confirmed explosion occurred about one month ago. Ash clouds, if produced, could exceed 20,000 feet above sea level. If a large ash-producing event occurs, nearby seismic, infrasound, or volcanic lightning networks should alert AVO staff quickly. However, for some events, a delay of several hours is possible. There is no real-time seismic monitoring network on Mount Cleveland and AVO is unable to track activity in real time.
Sudden explosions of blocks and ash remain possible with little or no warning, although the last confirmed explosion occurred about one month ago. Ash clouds, if produced, could exceed 20,000 feet above sea level. If a large ash-producing event occurs, nearby seismic, infrasound, or volcanic lightning networks should alert AVO staff quickly. However, for some events, a delay of several hours is possible. There is no real-time seismic monitoring network on Mount Cleveland and AVO is unable to track activity in real time.
Update in Common Alerting Protocol (CAP) format
