Redoubt eruption: The most recent eruptive activity at Redoubt volcano began on March 22, 2009. There have been many explosive eruptions, ash has blanketed the landscape and floods have swept down the Drift River. In this image an eruption cloud drapes Redoubt and an ash-covered landscape.

The most recent eruption at Redoubt began with a major phreatomagmatic, vent-clearing explosion at 9:47 am on December 14, 1989 after less than 24 hours of intense precursory seismicity. Three more ash-rich explosions occurred the following day, December 15, with the last blast generating a pyroclastic flow down the Drift Glacier.

AVO recorded numerous volcanic eruptions and/or explosions at Redoubt volcano during this period of activity. Ash from this eruption fell in Alaska's largest city, Anchorage.

The 1989-90 eruption of Redoubt Volcano, 177 km southwest of Anchorage, Alaska, began on December 14, 1989, less than 24 hours after a swarm of earthquakes struck

The 2009 eruption of Redoubt Volcano began with a minor explosion of steam and ash just after 13:00 AKDT on March 15. Major explosive events began at approximately 22:40 March 22 AKDT, and since then AVO has recorded more than 19 separate explosions.

"During the February 15, 1990 eruption of Redoubt Volcano, a pyroclastic surge climbed a ridge 700 meters above the terminus of Drift Glacier and about 10 kilometers from the dome, charring woody vegetation, melting cables to seismic monitoring equipment, and partially burning a …

Description: From Schaefer (ed), 2012: "Redoubt Volcano, an ice-covered stratovolcano on the west side of Cook Inlet, erupted in March 2009 after several months of escalating unrest. The 2009 eruption of Redoubt Volcano shares many similarities with eruptions documented most recently at Redoubt in 1966-68 and 1989-90.

2025年3月19日 · Redoubt’s eruption lasted several months and, at times, shot ash up to 65,000 feet. ... In December 1989, a 747 flew through ash from another nearby volcano, Mount Redoubt, and the plane’s ...

2012年1月1日 · Redoubt Volcano, an ice-covered stratovolcano on the west side of Cook Inlet, erupted in March 2009 after several months of escalating unrest. The 2009 eruption of Redoubt Volcano shares many similarities with eruptions documented most …

From Schaefer (ed), 2012: "Redoubt Volcano, an ice-covered stratovolcano on the west side of Cook Inlet, erupted in March 2009 after several months of escalating unrest. The 2009 eruption of Redoubt Volcano shares many similarities with eruptions documented most recently at Redoubt in 1966-68 and 1989-90.