Mount Redoubt

Mount Redoubt, or Redoubt Volcano, is an active stratovolcano in the largely volcanic Aleutian Range of Alaska. The mountain is also the highest within the range. It is located in the Chigmit Mountains (a subrange of the Aleutians), west of Cook Inlet, about 180 km (110 miles) southwest of Anchorage, Alaska. The Alaska Volcano Observatory currently rates Redoubt as Aviation Alert Level Orange and Volcano Alert Level Watch. On January 25, 2009, the Alaska Volcano Observatory warned that Redoubt may erupt within "hours or days." On January 28, 2009, the AVO released an information statement stating that an eruption similar to its 1989/1990 event is the most likely scenario.

On January 30, 2009, scientists from the Alaska Volcano Observatory warned that an eruption was imminent, sending experienced Alaskans shopping for protection against a dusty shower of volcanic ash that could descend on south-central Alaska. By January 31, volcanic earthquakes increased to several per hour and a large hole in the glacier on the side of the mountain was spotted. Scientists have begun to monitor seismic data from the mountain twenty four hours a day in an effort to warn people in nearby communities. Also, a flyover conducted by the AVO detected "significant steaming from a new melt depression at the mouth of the summit crater near the vent area of the 1989-90 eruption."