Strong winds in the Katmai area picked up loose 1912 volcanic ash and carried it east again today, as it also did three days ago on Friday (08/28/15). AVO detected a possible cloud of resuspended ash blowing from the vicinity of Katmai and the Valley of Ten Thousand Smokes across and beyond Kodiak Island.
This phenomenon is not the result of volcanic activity and occurs seasonally in the spring and fall during times of high winds and dry snow-free conditions in the Katmai area and other young volcanic areas of Alaska. No eruption is in progress. All of the volcanoes of the Katmai area (Snowy, Griggs, Katmai, Novarupta, Trident, Mageik, Martin) remain at color code GREEN.
Resuspended volcanic ash should be considered hazardous and could be damaging to aircraft and health.
Mount Katmai is located in the United States, in south-western Alaska, at the entrance of the Alaska Peninsula and south of the National Park and Reserve of Katmai. It is surrounded by the Novarupta to the west, the Valley of Ten Thousand smokes, Mount Griggs, Naknek Lake to the northwest, the Snowy Mountain to the northeast, the bay of Kukak to the east, the Strait of Shelikof in the east, southeast and south, the Katmai river valley to the south and the Trident and Kelujik mountains to the southwest.
The top of the mountain is crowned by a caldera of three kilometers wide for four kilometers in length , which one of the edges culminates at 2047 meters altitude. This caldera contains a lake of 250 meters deep which entirely submerged an ancient Island, Horseshoe Island, consisting of a lava dome observed during an ascent of the volcano in 1916, four years after the eruption that created the caldera. The mountain slopes are covered with glaciers post-eruption of 1912 and formed by the snowfall.
September 01, 2015. Katmai, Alaska :
58 ° 16’44 “N 154 ° 57’12” W,
Summit Elevation 6716 ft (2047 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN
Source : AVO , Wikipedia.
Photos : Wikipedia