USGS Volcano Hazards Program Volcano Update

AVO update page and observatory web site

Weak elevated surface temperatures were observed at Cleveland in satellite data in the past 24 hours. The occurrence of brief, sudden explosions of blocks and ash from the summit vent with little to no warning remains possible.

Cleveland volcano does not have a local seismic network and is monitored using only distant seismic and infrasound instruments and satellite data.

Update in Common Alerting Protocol (CAP) format