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Pavlof is one of the most active volcanoes in North America. In the past 100 years, Pavlof has erupted at least 24 times and may have erupted on several other occasions. The remote location and weather with limited visibility, combined with the fact that there are few local inhabitants, may have allowed some eruptions to go unconfirmed. Today, daily satellite monitoring and real-time data from instruments around the volcano bring a continuous stream of information to scientists. [1] Although there is very little human activity on the land immediately surrounding Pavlof, the sky above is heavily travelled. Each day at...

Airplanes are being warned to avoid airspace near an erupting Alaska volcano as it spews ash 30,000 feet above sea level. The National Weather Service said Saturday ash is being blown to the west and northwest of Pavlof Volcano. Pavlof began erupting three days ago, pushing lava out from a vent near its summit. On Friday, the ash cloud reached 16,000 feet. Alaska Volcano Observatory Geophysicist Dave Schneider says the eruption intensified at 6 a.m. Saturday, sending the ash cloud higher.

One of Alaska's most active volcanoes could be working toward a massive eruption that could affect air travel but was not expected to threaten any of the towns in the area, scientists said Thursday. Satellite images of Pavlof Volcano taken Thursday showed strong thermal readings, consistent with what the Alaska Volcano Observatory is calling a "vigorous eruption of lava" at the volcano about 590 miles southwest of Anchorage on the Alaska Peninsula. The volcano is below the path of hundreds of daily international flight paths, and an explosive eruption could interrupt those operations, said Steve McNutt, a volcano seismologist with...

Alaska Volcano Observatory reports that Pavlof is erupting. Pavlof Activity "AVO posted an Information Release at 9:30AM today [August 15] raising the Aviation Color Code to ORANGE and another Information release at 12:20PM AKDT today reporting that Pavlof Volcano is in eruption at this time. Eyewitnesses aboard several ships report incandescent blocks down the east-southeast flank of the volcano beginning at midnight last night. Satellite data confirm the presence of lava. Pilot reports indicate that a weak ash plume is extending 5 miles southwest of the summit at an elevation of roughly 8400 ft. Seismic activity continues at a high...