An eruption on 11 March was recorded on AVO satellite imagery. The eruption lasted approximately 3 hours. The eruptions at Mt. Cleveland are generally short-lived explosive bursts of ash, sometimes accompanied by lava fountaining and lava flows down the flanks. This information was summarized from Smithsonian Institution's Preliminary Notices of Volcanic Activity . On 19 February, the Cleveland volcano erupted explosively.
Satellite imagery shows a large thermal anomaly.
Further explosive eruptions could occur with little warning. The Cleveland volcano is not seismically monitored and it is not assigned a level of concern color code. Chuginadak Island is remote and uninhabited. This information was summarized from Smithsonian Institution's Preliminary Notices of Volcanic Activity .