The Pavlof Volcano near the tip of the Alaska Peninsula erupted Monday, ejecting car-sized chunks of glowing rock from a crater near its summit.
Seismologists first learned of activity at Pavlof late Sunday night when residents of Cold Bay, 37 miles southwest of the volcano, called the observatory to report a red glow near the summit. Satellite imagery confirmed a hot spot near the summit.
At daybreak, a plume could be seen coming from the north flank of the volcano. Pilots who flew near the volcano Monday said boulders and magma were being thrown from the crater at the summit of the 8,262-foot mountain.
There is no immediate danger to people living along the Alaska Peninsula.