Alaska Volcano
FILE - This Monday, Aug. 8, 2011 file aerial photo provided by the National Oceanic and Atmospheric Administration shows Cleveland Volcano, left, located in the Aleutian Islands 939 miles southwest of Anchorage, Alaska. The volcano, which has sent up major ash eruptions in the past, is heating up near its summit. Scientists at the Alaska Volcano Observatory say satellite data obtained a week ago indicates a lava dome is growing in the summit crater. The observatory has changed its alert level for aircraft. (AP Photo/NOAA, Kym Yano, File) MANDATORY CREDIT
