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Caption:Map of principal eruptive products associated with the May-June and November 2014 eruptions of Pavlof Volcano.
Date:May 4, 2016 12:00 AM
Photographer:waythomas, chris
PavlofDebris flow/mudflow/landslide/lahar, Lava flow
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Caption:AVO personnel use this FEI Quanta 200 electron microscope for rapid analysis of volcanic ash. The microscope is equipped with secondary electron (SE) and backscatter electron (BSE) sensors, as well as a highly sensitive silicon drift detector energy-dispersive X-ray spectroscopy (SDD EDS). This instrument is well suited for acquiring high-resolution images of micron-size ash particles and for identifying mineral phases. The electron microscope is part of the Advanced Instrumentation Laboratory of the University of Alaska Fairbanks https://www.uaf.edu/ail/.
Date:April 7, 2016 10:08 AM
Photographer:Izbekov, Pavel
Array
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Caption:Photograph of a glass shard from grain mounts of the 0.125 mm size fraction of Pavlof ash from the March 28, 2016 fallout in Nelson Lagoon. View from a petrographic microscope under plain light.
Date:April 6, 2016 4:54 PM
Photographer:Wallace, Kristi
PavlofTephra
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Caption:Photograph of glass shards from grain mounts of the 0.125 mm size fraction of Pavlof ash from the March 28, 2016 fallout in Nelson Lagoon. View from a petrographic microscope under plain light.
Date:April 6, 2016 4:54 PM
Photographer:Wallace, Kristi
PavlofTephra
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Caption:Photograph of glass shards from grain mounts of the 0.125 mm size fraction of Pavlof ash from the March 28, 2016 fallout in Nelson Lagoon. View from a petrographic microscope under plain light.
Date:April 6, 2016 4:54 PM
Photographer:Wallace, Kristi
PavlofTephra
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Caption:AVO geologist Kristi Wallace looking at Pavlof volcanic ash using a petrographic microscope.
Date:April 6, 2016 3:28 PM
Photographer:Hansen, Mark
PavlofPeople in action, Tephra
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Caption:Grain mount of volcanic ash (-0.250 mm to +0.125 mm size fraction) deposited in Nelson Lagoon from the March 28, 2016 fallout from Pavlof Volcano.
Date:April 6, 2016 2:49 PM
Photographer:Wallace, Kristi
PavlofPeople in action, Tephra
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Caption:Pavlof volcanic ash sample (AT-3682) from the March 28, 2016 ashfall event split into three size fractions (+250 mm, 0.125 mm and 0.063 mm).
Date:April 6, 2016 2:16 PM
Photographer:Wallace, Kristi
PavlofTephra
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Caption:Processing samples of the March 28, 2016 Pavlof ash from Nelson Lagoon.
Date:April 6, 2016 10:46 AM
Photographer:Wallace, Kristi
ArrayTephra
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Caption:Processing samples of the March 28, 2016 Pavlof ash from Nelson Lagoon.
Date:April 6, 2016 10:41 AM
Photographer:Wallace, Kristi
PavlofTephra
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Caption:Processing samples of the March 28, 2016 Pavlof ash from Nelson Lagoon.
Date:April 6, 2016 10:39 AM
Photographer:Wallace, Kristi
PavlofTephra
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Caption:AVO staff Mark Hansen processing samples of the March 28, 2016 Pavlof ash from Nelson Lagoon.
Date:April 6, 2016 10:22 AM
Photographer:Wallace, Kristi
PavlofTephra
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Caption:AVO Staff Kristi Wallace holding the 8.5 kg of Pavlof ash collected in Nelson Lagoon after the March 28, 2016 fallout. Samples courtesy of Allan Brendall of Nelson Lagoon.
Date:April 6, 2016 10:20 AM
Photographer:Hansen, Mark
PavlofTephra
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Caption:SEM image of a volcanic ash particle from the March 28, 2016 eruption of Pavlof Volcano. The sample was collected by Allan Brandell of Nelson Lagoon, Alaska. The sample was cleaned in ultrasonic bath to remove fine ash particles and improve image quality.
Date:April 5, 2016 8:35 PM
Photographer:Izbekov, Pavel
Pavlof
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Caption:Seismograph stations in the AVO network at Pavlof Volcano during the 2016 eruption. Station PN7A was not functioning properly prior to the eruption and station PV6 was destroyed by eruptive activity.
Date:April 4, 2016 12:00 AM
Photographer:Haney, Matthew
PavlofSeismic/GPS installation
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Caption:Pavlof volcano, as seen from Cold Bay, showing deposits of March 27-28 eruption. Photo by Candace Shaack.
Date:March 29, 2016 9:06 AM
Photographer:Shaack, Candace
PavlofDebris flow/mudflow/landslide/lahar
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Caption:Mostly clear skies this morning in the FAA Cold Bay webcam showing a small ash plume from Pavlof.
Date:March 29, 2016 8:05 AM
Photographer:Schaefer, Janet
PavlofEruption cloud/ plume/ column
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Caption:IASI satellite image showing Pavlof's SO2 plume extending across interior Alaska and into Canada, March 29, 2016. Image courtesy of the Support for Aviation Control Service program, Belgium Institute for Space Aeronomy.
Date:March 29, 2016 7:08 AM
Photographer:
PavlofEruption cloud/ plume/ column
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Caption:Digital Globe satellite image of Pavlof Volcano in eruption, March 28 21:47 UTC. The dark streaks in the image are volcanic debris-flow deposits (lahars) generated by the interaction of hot eruptive material and snow and ice on the volcano. A robust ash plume obscures the north side of the volcano. This is the first time since the 1986-88 eruptive period that lahars have formed on both the north and south sides of the volcano.
Date:March 28, 2016 9:47 PM
Photographer:, Digital Globe
PavlofDebris flow/mudflow/landslide/lahar, Eruption cloud/ plume/ column, Tephra
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Caption:Flowage deposits darken the flanks of Pavlof. View looking northeast at 7,500 feet; photo taken from a U.S. Coast Guard flight. Lieutenant Commander Nahshon Almandmoss was the Aircraft Commander. Petty Officer Austin Torres was the flight engineer. All photos were taken from Coast Guard 1713, a HC-130H Hercules based at Air Station Kodiak.
Date:March 28, 2016 3:17 PM
Photographer:Almandmoss, Nahshon
PavlofDebris flow/mudflow/landslide/lahar, Eruption cloud/ plume/ column, Tephra
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Caption:Ash on snow in Togiak, 420 km (260 miles) northeast of Pavlof. Photo taken in the afternoon of March 28, 2016.
Date:March 28, 2016 2:18 PM
Photographer:Poulson, Morgan
PavlofEruption cloud/ plume/ column, Tephra
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Caption:Photo by Petty Officer Austin Torres, flight engineer, taken from Coast Guard 1713, a HC-130H Hercules based at Air Station Kodiak.
Date:March 28, 2016 1:30 PM
Photographer:Torres, Austin
PavlofDebris flow/mudflow/landslide/lahar, Eruption cloud/ plume/ column, Tephra
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Caption:Photo by Petty Officer Austin Torres, flight engineer, taken from Coast Guard 1713, a HC-130H Hercules based at Air Station Kodiak.
Date:March 28, 2016 1:30 PM
Photographer:Torres, Austin
PavlofDebris flow/mudflow/landslide/lahar, Eruption cloud/ plume/ column, Tephra
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Caption:Pavlof Volcano in eruption, March 28, 2016. The annotations show several of the processes that were occurring during the eruption including the formation of hot granular flows of rock material, the formation of lahar deposits, white steam plumes associated with the interaction of hot eruptive material and snow and ice, and the vertical ash column and drifting ash cloud. Pavlof sits just outside of Emmons Lake caldera, one of the largest caldera structures in the Aleutian arc. Also shown are several of the young post-caldera volcanoes inside the caldera. View is toward the north east.
Date:March 28, 2016 11:15 AM
Photographer:Almandmoss, Nahshon
PavlofEruption cloud/ plume/ column, Steam, Tephra
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Caption:A spectacular view to the northeast of the Pavlof eruption taken at 20,000 feet, by our friends at the U.S. Coast Guard. Lieutenant Commander Nahshon Almandmoss was the Aircraft Commander. Petty Officer Austin Torres was the flight engineer. All photos were taken from Coast Guard 1713, a HC-130H Hercules based at Air Station Kodiak.
Date:March 28, 2016 11:14 AM
Photographer:Almandmoss, Nahshon
PavlofDebris flow/mudflow/landslide/lahar, Eruption cloud/ plume/ column, Tephra
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