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Alaska's Mount Redoubt rumbles once again

The official alert level has been raised as Alaska's Mount Redoubt volcano rumbles again.
Image: Mount Redoubt
Steam rises from a large fumarole on the north flank of Mount Redoubt in January.Alaska Volcano Observatory via AP file
/ Source: The Associated Press

The official alert level has been raised as Alaska's Mount Redoubt volcano rumbles again.

Geologists at the Alaska Volcano Observatory say a significant eruption does not appear imminent, but they raised the alert to orange, the stage just before eruption. They cautioned yesterday that conditions could evolve rapidly.

The 10,200-foot Redoubt Volcano is about 100 miles southwest of Anchorage.

Ash from the volcano could harm engines and is especially dangerous for aircraft. Ash blown to cities also can cause respiratory problems.

Residents of south-central Alaska have kept a close eye on Redoubt since the observatory on warned in January that an eruption could occur at any moment. The alert level was downgraded last week after nearly two months.

It's back up now that seismic activity has increased.