We have a volcano threatening to blow.
The explosion was at Cleveland Volcano, located on an uninhabited Aleutian island 940 miles southwest of Anchorage.
While the exact size of the ash cloud it produced is unknown, it was believed to be small, as was a cloud the resulted from a similar explosion at the volcano in December, said Steve McNutt, a University of Alaska Fairbanks seismologist who works at the Alaska Volcano Observatory.
That cloud rose to less than 20,000 feet, lower than the levels used by large commercial jets, McNutt said.