A plume of volcanic ash hangs over the Gulf of Alaska in this natural-color image. The plume is not the product of an active volcano; it is re-suspended ash from the 1912 eruption of Novarupta, according to the Alaska Volcano Observatory. High winds previously stirred up ash in the area in October 2015.
In contrast to the explosive eruptions of the previous week, ash emissions from Mount Redoubt became more frequent but confined to lower altitudes on March 30, 2009. The commercial satellite GeoEye-1 captured a high-resolution view of the volcano the same day.