USGS Volcano Hazards Program Volcano Update


AVO update page and observatory web site


Weather conditions are cloudy at Cleveland volcano obscuring views in satellite data and web camera images. There has been no evidence of further eruptive activity.

Sudden explosions of blocks and ash remain possible with little or no warning. Associated ash clouds could exceed 20,000 feet above sea level. If a large ash-producing event occurs, nearby seismic, infrasound, or volcanic lightning networks should detect the event and alert AVO staff. 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