One of Alaska’s most active volcanoes, a towering ice-covered cone in the Aleutian Islands, shot a cloud of ash more than 5 miles (8 km) high on Friday, triggering a warning to aviators and putting on a show that was captured in satellite imagery. The ash burst from Shishaldin Volcano, about 670 miles (1,080 km) southwest of Anchorage, was part of an on-and-off, mostly low-level series of eruptions that began in July with a stream of lava from the crater at the peak of the 9,373-foot-tall (2,869-meter) mountain. The ash plume was spotted by a pilot and was visible in satellite images captured from space.
