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ImageDetailsVolcanoesKeywords
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Caption:Carlisle Volcano as seen from the north flank of Cleveland. Photographs from the 2014 Islands of Four Mountains project.
Date:July 30, 2014 11:41 AM
Photographer:Izbekov, Pavel
Carlisle, Cleveland, Herbert, Tana
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Caption:Photographs from fieldwork in the Islands of Four Mountains, July and August 2014.
Date:July 30, 2014 11:23 AM
Photographer:Lyons, John
Carlisle, Cleveland, Herbert, Tana
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Caption:Perspective view of Landsat-8 visible satellite image data collected on July 29, 2014 showing the Islands of the Four Mountains in the Aleutian Islands. View is from the north. Frequently active Cleveland Volcano is in the center of the image, Herbert volcano is in the upper right, and Carlisle volcano is in the lower right.
Date:July 29, 2014 10:18 PM
Photographer:Schneider, Dave
Carlisle, Cleveland, HerbertVolcano
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Caption:Lake along the summit ridge of Tana Volcano, Chuginadak Island. Photographs from fieldwork in the Islands of Four Mountains, July and August 2014.
Date:July 29, 2014 8:25 PM
Photographer:Lyons, John
TanaLake
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Caption:Lake along the summit ridge of Tana Volcano, Chuginadak Island. Photographs from fieldwork in the Islands of Four Mountains, July and August 2014.
Date:July 29, 2014 8:25 PM
Photographer:Lyons, John
Cleveland, TanaLake
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Caption:Helicopter view of Tana, Cleveland, Herbert volcanoes. Photographs from fieldwork in the Islands of Four Mountains, July and August 2014.
Date:July 29, 2014 8:24 PM
Photographer:Lyons, John
Cleveland, Herbert, TanaGlacier, Stratovolcano, Volcano
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Caption:Aerial view to the west over Tana volcano. In the distance from left to right, Herbert, Cleveland, Carlisle. Photographs from fieldwork in the Islands of Four Mountains, July and August 2014.
Date:July 29, 2014 8:24 PM
Photographer:Lyons, John
Carlisle, Cleveland, Herbert, Tana
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Caption:Aerial view to the northeast over Tana Volcano, Chuginadak Island. In the far distance on horizon is Vsevidof Volcano on Umnak Island. Photographs from fieldwork in the Islands of Four Mountains, July and August 2014.
Date:July 29, 2014 8:20 PM
Photographer:Lyons, John
Tana, VsevidofJust for fun
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Caption:Westernmost peak of Tana volcano. Photographs from the 2014 Islands of Four Mountains project.
Date:July 29, 2014 6:12 PM
Photographer:Izbekov, Pavel
Carlisle, Cleveland, Herbert, Tana
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Caption:Crater lake, Tana Volcano, Chuginadak Island. 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:July 29, 2014 6:07 PM
Photographer:Izbekov, Pavel
TanaCaldera/crater, Lake
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Caption:Summit of Cleveland. Note native sulfur deposits and source of fume in the crater. No new lava was visible. 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:July 29, 2014 6:02 PM
Photographer:Izbekov, Pavel
ClevelandCaldera/crater, Fumarolic activity, Stratovolcano
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Caption:Aerial view of Tana Volcano, Vsevidof on the horizon. 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:July 29, 2014 6:00 PM
Photographer:Izbekov, Pavel
Tana, Vsevidof
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Caption:Summit of Cleveland. 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:July 29, 2014 5:59 PM
Photographer:Izbekov, Pavel
ClevelandFumarolic activity, Stratovolcano
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Caption:AVO's John Lyons photographed this small rockfall event at Cleveland in late July 2014 during the field campaign to install the monitoring network. Notice the light-colored trail of dust rising above the path of volcanic debris that tumbled down the east flank of the volcano. We suspect these rockfalls come from steep, unstable piles of debris ejected during explosions earlier in the year. Folks in the field could hear the rocks rumble down the slope. Below the photograph are two ways of seeing rockfalls using seismic data from the new station CLES at the southeast base of the volcano. On top is the seismic waveform - here spanning 1 minute and 30 seconds from left to right - showing the typical spindle-shaped, emerging and slowly diminishing ground shaking signal seen during rockfalls in many settings. Below that is the same information in the frequency domain: warmer colors show higher amounts of energy at different frequencies contained within the waveform. Rockfalls show a mixture of high and low frequency content. Knowing this, we can detect these events from our offices far from the volcano. For more on interpreting spectrograms, see: http://pnsn.org/spectrograms/faq
Date:July 29, 2014 12:00 AM
Photographer:Lyons, John
ClevelandDebris flow/mudflow/landslide/lahar, Fumarolic activity, Stratovolcano, Volcano
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Caption:Summit overflight of Cleveland Volcano, Chuginadak Island during 2014 geological, geophysical and archeological field work. Carlisle and Herbert Volcanoes can be seen in the background. This video taken during the Islands of Four Mountains multidisciplinary project, funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Date:July 29, 2014 12:00 AM
Photographer:Lyons, John
ClevelandCaldera/crater, Fieldwork operations, Volcano
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Caption:Carlisle Volcano near sunset, as seen from Applegate Cove. The eternal Aleutian fog tendril drifts across the Bering. 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:July 28, 2014 10:17 PM
Photographer:Neal, Christina
CarlisleStratovolcano
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Caption:A lazy plume of volcanic gas rises above the summit crater of Cleveland volcano. 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:July 28, 2014 9:11 PM
Photographer:Fulton, Anne
ClevelandFumarolic activity, Stratovolcano
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Caption:Slinging an instrumentation enclosure off the Maritime Maid. Degassing Cleveland 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:July 28, 2014 6:50 PM
Photographer:Neal, Christina
ClevelandEruption cloud/ plume/ column, Fieldwork operations, People in action, Stratovolcano, Volcano
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Caption:Cleveland volcano as seen from Applegate Cove. 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:July 28, 2014 5:17 PM
Photographer:Neal, Christina
ClevelandFumarolic activity, Stratovolcano, Volcano
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Caption:Cleveland Volcano viewed from Applegate Cove on the north side of Chuginadak Island. 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:July 28, 2014 4:35 PM
Photographer:Neal, Christina
ClevelandCinder cone, Eruption cloud/ plume/ column, Fieldwork operations, Stratovolcano, Volcano
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Caption:Summit and upper northeast flank of Cleveland volcano as seen from Applegate Cove. View is to the southwest. Note tan plume rising from the lower left marking the path of a rockfall. On this clear day, we observed a number of rockfalls in progress on the upper flank of the volcano. Some produced long-lasting wisps of vapor suggesting hot material falling on remnant snow in gullies. Note also small gas plume rising above the sumit crater. 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:July 28, 2014 4:34 PM
Photographer:Neal, Christina
ClevelandDebris flow/mudflow/landslide/lahar, Fumarolic activity, Stratovolcano
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Caption:Cleveland and Carlisle volcanoes as seen from the eastern side of Applegate Cove, Chuginadak Island on a rare, glorious, sunny Aleutian day. 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:July 28, 2014 3:57 PM
Photographer:Fulton, Anne
Carlisle, ClevelandStratovolcano
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Caption:Scientists from the Islands of Four Mountains multidisciplinary science project, a program funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium, head ashore by skiff on the first day of fieldwork. For more information on this project, see: https://www.facebook.com/IslandsOfThe4Mountains/timeline
Date:July 28, 2014 2:52 PM
Photographer:Neal, Christina
ClevelandEruption cloud/ plume/ column, Stratovolcano
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Caption:Worldview-2 satellite image of the summit crater of Korovin, overlain on topography in Google Earth, showing the small lake that is frequently observed. View is from the east.
Date:July 28, 2014 12:00 AM
Photographer:Schneider, Dave
KorovinCaldera/crater, Lake, Volcano
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Caption:Worldview-2 satellite image overlain on topography in Google Earth, showing the northern portion of Atka Island with Korovin Volcano in the foreground. View is from the north
Date:July 28, 2014 12:00 AM
Photographer:Schneider, Dave
KorovinCaldera/crater, Volcano
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