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Caption:Avalanche/slide at Iliamna, May 22, 2016. Photo taken from near Homer, AK, courtesy of Dennis Anderson, Night Trax Photography.
Date:May 23, 2016 10:54 AM
Photographer:Anderson, Dennis
IliamnaAvalanche
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Caption:Avalanche/slide at Iliamna, May 22, 2016. Photo taken from near Homer, AK, courtesy of Dennis Anderson, Night Trax Photography.
Date:May 23, 2016 5:54 AM
Photographer:Anderson, Dennis
IliamnaAvalanche
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Caption:Landsat-8 true color satellite image collected on May 23, 2016 showing the source and deposit extent of a mixed ice, snow and rock avalanche covering part of Red Glacier on the east flank of Iliamna Volcano. The avalanche began shortly before midnight on May 21, 2016 (AKDT) and was detected in seismic and pressure sensor data at sites throughout Cook Inlet and the northern Alaska Peninsula. The deposit covers about 7.2 square kilometers (2.75 square miles).
Date:May 23, 2016 12:00 AM
Photographer:Schneider, Dave
IliamnaAvalanche, Debris flow/mudflow/landslide/lahar
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Caption:Landsat-8 true color composite from Cleveland Volcano,15 May 2016, 22:17 UTC (2:17 pm AKDT), sharpened with panchromatic data. Robust steaming observed extending to the west and seen as a shadow on the lower meteorological cloud deck.
Date:May 15, 2016 2:17 PM
Photographer:Schneider, David
ClevelandSteam
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Caption:Landsat-8 data from 15 May 2015 at 22:17 UTC (2:17 PM AKDT) show robust steaming and high temperatures in Cleveland Volcano's summit crater (in the shortwave IR), indicating continued unrest. The high-temperature feature is visible in this image as a red pixel. Robust steaming observed extending to the west and seen as a shadow on the lower meterological cloud deck. Shortwave IR has very little reflectance from snow, which is why Cleveland appears blue.
Date:May 15, 2016 2:17 PM
Photographer:Schneider, David
ClevelandSteam
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Caption:Eruption of Pavlof Volcano as viewed from Cold Bay.
Date:May 14, 2016 8:00 PM
Photographer:Kremer, Rachel
PavlofEruption cloud/ plume/ column, Tephra
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Caption:Eruption of ash from Pavlof Volcano as viewed from Cold Bay.
Date:May 14, 2016 8:00 PM
Photographer:Kremer, Rachel
PavlofEruption cloud/ plume/ column, Tephra
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Caption:Plume ash rising from Pavlof Volcano at about 8 pm on Saturday, May 14, 2016 as seen from Cold Bay.
Date:May 14, 2016 8:00 PM
Photographer:Kremer, Rachel
PavlofEruption cloud/ plume/ column, Tephra
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Caption:Minor ash emission from Pavlof, observed from Cold Bay, 8 pm, May 14, 2016. Photo courtesy of Royce Snapp.
Date:May 14, 2016 8:00 PM
Photographer:Snapp, Royce
PavlofEruption cloud/ plume/ column, Tephra
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Caption:Eruption of Pavlof Volcano as viewed from Cold Bay on Saturday, May 14, 2016.
Date:May 14, 2016 8:00 PM
Photographer:Kremer, Rachel
PavlofEruption cloud/ plume/ column, Tephra
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Caption:Minor ash emission from Pavlof Volcano, 7:50 pm, May 14, 2016, as viewed from Cold Bay. Photo courtesy of Royce Snapp.
Date:May 14, 2016 7:50 PM
Photographer:Snapp, Royce
PavlofEruption cloud/ plume/ column, Tephra
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Caption:Minor ash emission from Pavlof Volcano, 7:50 pm AKDT, as viewed from Cold Bay. Photo courtesy of Royce Snapp.
Date:May 14, 2016 7:50 PM
Photographer:Snapp, Royce
PavlofEruption cloud/ plume/ column, Tephra
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Caption:Eruptive activity at Pavlof Volcano at approximately 1 pm AKDT (21:00 UTC) on Saturday May 14, 2016, as viewed from Cold Bay.
Date:May 14, 2016 1:00 PM
Photographer:Kremer, Rachel
PavlofEruption cloud/ plume/ column, Tephra
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Caption:False-color satellite image of Cleveland Volcano collected by the Worldview-2 satellite on May 8, 2016. Ash deposits and debris flows generated by an explosion on May 5, 2016 are visible on the southeast portion of the cone.
Date:May 8, 2016 12:00 AM
Photographer:Schneider, Dave
ClevelandDebris flow/mudflow/landslide/lahar, Tephra
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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 staff Mark Hansen training USCG staff to operate AVO's particulate monitor deployed to Kodiak to measure ash in the air during days when ash is resuspended from the Katmai region on the Alaska Peninsula to Kodiak Island.
Date:April 29, 2016 8:27 AM
Photographer:Wallace, Kristi
Katmai, NovaruptaEruption cloud/ plume/ column, Fieldwork operations, People in action, Tephra
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Caption:AVO staff Mark Hansen training USCG staff to operate AVO's particulate monitor deployed to Kodiak to measure ash in the air during days when ash is resuspended from the Katmai region on the Alaska Peninsula to Kodiak Island.
Date:April 29, 2016 8:27 AM
Photographer:Wallace, Kristi
Katmai, NovaruptaEruption cloud/ plume/ column, Fieldwork operations, People in action, Tephra
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Caption:AVO staff Mark Hansen training USCG staff to operate AVO's particulate monitor deployed to Kodiak to measure ash in the air during days when ash is resuspended from the Katmai region on the Alaska Peninsula to Kodiak Island.
Date:April 29, 2016 8:26 AM
Photographer:Wallace, Kristi
Katmai, NovaruptaEruption cloud/ plume/ column, Fieldwork operations, People in action, Tephra
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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 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 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: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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