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Ash is resuspended from Redoubt Volcano eruption
March 28, 2009

Ash is resuspended from Redoubt Volcano eruption

Ash is resuspended from Redoubt Volcano eruption

Attribution: Natural Hazards, Alaska
video thumbnail: Redoubt Volcano Plume
February 6, 2009

Redoubt Volcano Plume

Beginning in early November 2008 Redoubt Volcano, 106 miles southwest of Anchorage, AK, began to show signs of unrest including significant changes in gas emission and heat output. On November 5, 2008, the Alaska Volcano Observatory (AVO) raised Redoubt's Aviation Color Code to Yellow and the Volcano Alert Level to Advisory. A significant increase in earthquake activity

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Attribution: Alaska
video thumbnail: Okmok Volcano Eruption
July 20, 2008

Okmok Volcano Eruption

Video taken by AVO/USGS geologist Tina Neal during a USCG C-130 overflight of the eruption of Okmok Volcano and distant ash plume from Cleveland Volcano. July 21, 2008.

Attribution: Alaska
video thumbnail: Lake 31, NPR-A, AK Time-Lapse Photography of Lake Shore Erosion
June 28, 2008

Lake 31, NPR-A, AK Time-Lapse Photography of Lake Shore Erosion

4-week time-lapse photography of the shoreline of Lake 31 in NPR-A, coastal Arctic Alaska, demonstrates erosion mechanisms during July, 2008

Attribution: Alaska
video thumbnail: Drew Point, AK Time-Lapse Photography of Coastal Erosion
June 26, 2008

Drew Point, AK Time-Lapse Photography of Coastal Erosion

4-week time-lapse photography of the Arctic coast at Drew Point, AK shows mass wasting of the coastal sediments in July, 2008

Attribution: Alaska
video thumbnail: Drew Point, AK Time-Lapse Photography of Coastal Erosion
June 5, 2008

Drew Point, AK Time-Lapse Photography of Coastal Erosion

4-week time-lapse photography of the Arctic coast at Drew Point, AK shows intense coastal erosion in early July, 2008

Attribution: Alaska
Image shows a drill rig on a snowy landscape
December 31, 2007

Gas Hydrate Drill Rig at the Mt. Elbert Test Site in Alaska

A drill rig at the Mount Elbert test site in Alaska's North Slope, just west of Prudhoe Bay. USGS joined BP Exploration (Alaska) and the U.S. Department of Energy to drill a test well to study natural gas production from gas hydrate deposits. Read more about the Mt. Elbert project 

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May 31, 2006

Mount St. Helens: Instrumentation and Dome Growth, April-May 2006

The first priority of any eruption is to assess current status and what might happen next. To accomplish this, Mount St. Helens became one of most heavily monitored volcanoes. At the start of the 2004–08 eruption, 13 permanent seismic stations operated within about 12 miles of Mount St. Helens. By the end of the eruption, the seismic network consisted of 20 stations.

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May 31, 2006

Mount St. Helens: Instrumentation and Dome Growth, May-Sept 2006

Throughout the eruption, scientists installed monitoring stations to track volcanic activity, deployed temporary monitoring ""spiders"", monitored the temperature of lava spines and created time-lapse of dome growth. During the 3+ years of the eruption, lava piled up to form a new dome 460 m (1,500 ft) high. The 92 million cubic meters (121 million cubic yards, or 36,800

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A gas plume arising from Augustine Volcano during it's eruptive phase 2005-06.
January 24, 2006

A gas plume arising from Augustine Volcano during it's eruptive phase 2005-06.

A gas plume arising from Augustine Volcano during it's eruptive phase 2005-06. This photo was taken during  a FLIR/maintenance flight on January 24, 2006.

Attribution: Natural Hazards, Alaska