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ImageDetailsVolcanoesKeywords
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Caption:A small gas and minor ash emission from Cleveland, observed from the Maritime Maid anchored on the south side of Tana Volcano. This event was not large enough to be detected by the seismic and infrasound monitoring stations. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:August 4, 2015 9:50 PM
Photographer:Lyons, John
ClevelandFieldwork operations, Infrasound, Stratovolcano, Volcano
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Caption:John Lyons preparing thermal camera for a summit overflight of Cleveland Volcano. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:August 4, 2015 3:48 PM
Photographer:Cooper, Joe
ClevelandDome, Fieldwork operations, Volcano
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Caption:Summit lake of Tana Volcano, with Kagamil Volcano in the background. Photo taken during the 2014 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:August 4, 2015 2:09 PM
Photographer:Lyons, John
Kagamil, TanaLake, Volcano
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Caption:John Lyons conducting geology field work on the south rim of Tana lake, in the Aleutian Islands. Cleveland and Herbert Volcanoes are visible in the background. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:August 4, 2015 2:09 PM
Photographer:Lyons, John
Cleveland, Herbert, TanaFieldwork operations, People in action, Stratovolcano, Volcano
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Caption:Pavel Izbekov conducting geology field work on the south rim of Tana lake. Cleveland and Herbert Volcanos are visible in the background. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:August 4, 2015 2:08 PM
Photographer:Lyons, John
Cleveland, Herbert, TanaFieldwork operations, People in action, Stratovolcano, Volcano
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Caption:Summit lake of Tana Volcano, Islands of Four Mountains. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:August 4, 2015 1:56 PM
Photographer:Lyons, John
Cleveland, TanaLake, Volcano
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Caption:Shishaldin, August 4, 2015.
Date:August 4, 2015 12:57 PM
Photographer:AVO Shishaldin webcam
ShishaldinStratovolcano
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Caption:Cleveland Volcano overflight, August 4, 2015. Minor degassing observed at center of lava dome. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:August 4, 2015 12:00 AM
Photographer:Lyons, John
ArrayDome
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Caption:Cleveland Volcano overflight, August 4, 2015. Forward-looking infrared (FLIR) image of the lava dome, showing center-of-dome temperatures of about 550-600 degrees Celsius (1022-1112 degrees Fahrenheit)
Date:August 4, 2015 12:00 AM
Photographer:Lyons, John
ClevelandDome
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Caption:Cleveland Volcano overflight, August 4, 2015. Forward-looking infrared (FLIR) image showing hot temperatures of the lava dome.
Date:August 4, 2015 12:00 AM
Photographer:Lyons, John
ClevelandDome
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Caption:Cleveland Volcano overflight, August 4, 2015. View of lava dome within Cleveland's summit crater, showing concentric rings and radial fractures in dome surface, surrounding elevated, hot dome core. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:August 4, 2015 12:00 AM
Photographer:Lyons, John; Schmitt, Joe
ClevelandDome
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Caption:Cleveland Volcano overflight, August 4, 2015, showing lava dome within Cleveland's summit crater. Photo courtesy of John Lyons, AVO/USGS.
Date:August 4, 2015 12:00 AM
Photographer:Lyons, John; Schmitt, Joe
ClevelandDome
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Caption:Cleveland Volcano viewed from Concorde Point. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:August 2, 2015 9:21 AM
Photographer:Lyons, John
ClevelandFieldwork operations, Stratovolcano, Volcano
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Caption:Here is the hat-stealing fox at Makushin, returned for another look (any other field gear it would like?).
Date:July 28, 2015 10:27 AM
Photographer:Larsen, J. F.
MakushinFieldwork operations, Just for fun, Stratigraphic section, Tephra
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Caption:Janet Schaefer (AVO/DGGS) describes Makushin's past eruptions to Harold Montgomery of the Ounalashka Corporation, and discusses impacts to Unalaska / Dutch Harbor if Makushin produces similar-sized eruptions in the future. This outcrop is located near the top of Haystack Hill.
Date:July 28, 2015 10:27 AM
Photographer:Larsen, J. F.
MakushinFieldwork operations, Infrastructure/ cultural, Stratigraphic section, Tephra
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Caption:USGS geologist, Jim Vallance, and AVO/UAF geologist, Jessica Larsen, investigate ash fall and pyroclastic flow deposits in Waterfall Valley, on the north flank of Makushin volcano.
Date:July 25, 2015 10:52 AM
Photographer:Schaefer, J. R. G.
MakushinPeople in action, Stratigraphic section, Tephra
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Caption:USGS geologist, Jim Vallance, investigates ash fall and pyroclastic flow deposits in Waterfall Valley, on the north flank of Makushin volcano.
Date:July 25, 2015 10:51 AM
Photographer:Schaefer, J. R. G.
MakushinPeople in action, Stratigraphic section, Tephra
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Caption:Herbert Volcano, Central Aleutians. View from the East. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the AVO/USGS, and the Keck Geology Consortium.
Date:July 24, 2015 5:34 PM
Photographer:Izbekov, Pavel
HerbertCaldera/crater, Stratovolcano, Volcano
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Caption:Cleveland Volcano, Central Aleutians. View from the West. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the AVO/USGS, and the Keck Geology Consortium. Photo credit: Pavel Izbekhov, AVO/UAFGI.
Date:July 24, 2015 5:32 PM
Photographer:Izbekov, Pavel
Cleveland, TanaFumarolic activity, Stratovolcano, Volcano
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Caption:Carlisle Volcano, Central Aleutians. View from South-East. Photo taken during the 2015 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the AVO/USGS, and the Keck Geology Consortium.
Date:July 24, 2015 9:07 AM
Photographer:Izbekov, Pavel
CarlisleStratovolcano, Volcano
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Caption:Landsat-8 satellite image of Cleveland Volcano, draped over topography, collected on the night of July 23, 2015 at 08:53 UTC (12:53 am AKDT). The grayscale base image is from thermal infrared (TIR) data, and shows temperatures from cool in white to warm in black. The color overlay is short-wave infrared data, and shows high temperature features that aren't seen in TIR data. A hot summit vent is observed (as a red dot), surrounded by slightly cooler (but still hot) deposits likely from the explosion on 21 July. Note that steaming or clouds obscured a portion of the hot deposits on the south side, observed as an indent in the (likely) circular deposit.
Date:July 23, 2015 8:53 AM
Photographer:Schneider, D. J.
ClevelandVolcano
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Caption:Janet Schaefer (AVO/DGGS) and Jim Vallance (USGS) examine tephra deposits from Makushin in a peat-rich outcrop. This outcrop is located in a cirque, high above Driftwood Valley. Janet used a folding extension ladder to obtain good descriptions and samples.
Date:July 23, 2015 12:00 AM
Photographer:Larsen, J. F.
MakushinFieldwork operations, Stratigraphic section, Tephra
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Caption:This fox at Makushin tried to steal a hat from Jessica Larsen. Janet Schaefer chased the fox, and retrived the hat when the fox dropped it. Here, Janet holds the hat while the fox returns for another look.
Date:July 23, 2015 12:00 AM
Photographer:Larsen, J. F.
MakushinFieldwork operations, Just for fun, Stratigraphic section, Tephra
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Caption:Jim Vallance (USGS) describes Makushin eruption deposits from a thick outcrop located on the north flanks of the volcano.
Date:July 23, 2015 12:00 AM
Photographer:Larsen, J. F.
MakushinFieldwork operations, Stratigraphic section, Tephra
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Caption:Janet Schaefer (AVO/DGGS) and Jim Vallance (USGS) examine tephra deposits from Makushin in a peat-rich outcrop. This outcrop is located in a cirque, high above Driftwood Valley. Janet used a folding extension ladder to obtain good descriptions and samples.
Date:July 23, 2015 12:00 AM
Photographer:Larsen, J. F.
MakushinFieldwork operations, Stratigraphic section, Tephra
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