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Caption:Sentinel-2 view of Great Sitkin acquired at 22:49 UTC on January 9, 2019. The visible (left) and short-wave infrared (SWIR) false color (right) images show a very small steam plume emanating from the central crater, accompanied by SWIR anomalies.
Date:January 9, 2019 10:49 PM
Photographer:Dietterich, Hannah
Great Sitkin
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Caption:Landsat 8 image of the aftermath of the Cleveland explosion on January 9, 2019. The satellite image was acquired at 22:11 UTC, just three hours after the explosion at 19:15 UTC. A small steam plume and tephra deposit are apparent in visible imagery (left), and the crater is hot in the short-wave infrared (SWIR) bands (right, pan-sharpened false color). The small deposit is consistent with the geophysical evidence for the small size of the explosion.
Date:January 9, 2019 10:11 PM
Photographer:Dietterich, Hannah
Cleveland
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Caption:Great Sikin steam plume, December 7, 2018. Photo courtesy of Andy Lewis and Bob Boyd.
Date:December 7, 2018 2:58 PM
Photographer:Lewis, Andy; Boyd, Bob
Great SitkinSteam
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Caption:Great Sitkin steam plume, December 7, 2018. Photo courtesy of of Andy Lewis and Bob Boyd.
Date:December 7, 2018 2:56 PM
Photographer:Lewis, Andy; Boyd, Bob
Great SitkinSteam
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Caption:To view video file, please click the "full res" link below. Cheryl Cameron and Katie Mulliken (both AVO/DGGS) catalog boxes of rocks collected by CalVO colleagues from volcanoes in Alaska. The samples will be shipped to Alaska and archived at the Geologic Materials Center (http://dggs.alaska.gov/gmc/index.php) in Anchorage, a state-funded facility that permanently archives geologic materials collected from Alaska, making them available for future research.
Date:December 6, 2018 12:00 AM
Photographer:Mulliken, Katherine
ArrayJust for fun, People in action
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Caption:Samples collected during fieldwork done by California Volcano Observatory colleagues over the past five decades from Katmai cluster, Aniakchak, and Veniaminof volcanoes, boxed and on pallets to be shipped to Alaska. The samples will be archived at the Geologic Materials Center (http://dggs.alaska.gov/gmc/index.php) in Anchorage, a state-funded facility that permanently archives geologic materials collected from Alaska, making them available for future research.
Date:December 6, 2018 12:00 AM
Photographer:Mulliken, Katherine
ArrayJust for fun
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Caption:Sample 79AN-1 (from Aniakchak) being boxed at CalVO for shipment to Alaska. The sample will be archived at the Geologic Materials Center (http://dggs.alaska.gov/gmc/index.php) in Anchorage, a state-funded facility that permanently archives geologic materials collected from Alaska, making them available for future research.
Date:December 6, 2018 12:00 AM
Photographer:Mulliken, Katherine
AniakchakJust for fun
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Caption:Sentinel-2 satellite image of Veniaminof volcano acquired Dec. 5, 2018. Three lava flow lobes are evident in the image with relative ages 1 (oldest) and 3 (youngest). AVO became aware of flow 3 on Nov. 29, 2018. It is uncertain when this flow first formed as the volcano was obscured by clouds for some time prior to Nov. 29.
Date:December 5, 2018 12:00 AM
Photographer:waythomas, chris
VeniaminofLava flow
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Caption:Satellite views of the active cone of Veniaminof volcano on November 5, 2018 and December 2, 2018 showing a new lava flow lobe (L3) in the December 2, 2018 image. AVO first became aware of the possibility of this third lava flow lobe on November 29, but confirmed in this image. WorldView data courtesy of the Digital Globe NextView License.
Date:December 4, 2018 12:00 AM
Photographer:waythomas, chris
VeniaminofLava flow
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Caption:DigitalGlobe WorldView-3 multispectral image of Bogoslof Island, Dec. 2, 2018. Island area from this image about 1.2 square km. Still some steaming evident in the vicinity of the 2016-17 lava dome.
Date:December 2, 2018 12:00 AM
Photographer:waythomas, chris
BogoslofFumarolic activity
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Caption:Seismicity for Akutan Island for 2017. The November 11-13 swarm was located off the northwest coast of Akutan Island.
Date:November 26, 2018 12:00 AM
Photographer:Dixon, Jim
Akutan
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Caption:Annotated satellite view of the Veniaminof eruption taken by Sentinel-2 on November 22, 2018. The image shows an eruptive plume above the active cone within the caldera, as well as a broad tephra deposit to the southeast on snow extending to Perryville. Image courtesy of ESA/Copernicus. Sentinel-2 image visualized in EOS LandViewer on eos.com.
Date:November 22, 2018 9:48 PM
Photographer:Dietterich, Hannah; ESA Sentinel-2,
VeniaminofCinder cone, Eruption cloud/ plume/ column, Tephra
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Caption:Morning view from Perryville NW FAA webcam showing diffuse ash plume drifting south, Nov 22, 2018.
Date:November 22, 2018 9:26 AM
Photographer:Loewen, Matt
VeniaminofEruption cloud/ plume/ column
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Caption:Visible light satellite image of Veniaminof ash plume at 13:25 AKST, Nov 21, 2018 extending 320 km (200 miles) SE.
Date:November 21, 2018 10:25 PM
Photographer:Loewen, Matt
ArrayEruption cloud/ plume/ column
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Caption:The November 21, 2018 eruption of Veniaminof volcano as seen from the FAA Perryville webcam, located ~21 miles (~33km) south-southeast of the active vent.
Date:November 21, 2018 12:16 PM
Photographer:Schaefer, Janet
VeniaminofEruption cloud/ plume/ column, Tephra
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Caption:An ash cloud from Veniaminof volcano extends more than 220 kilometers (~140 miles) southeast of the active vent. MODIS satellite image 20:49UTC (11:49AM local time), November 21, 2018.
Date:November 21, 2018 11:48 AM
Photographer:Schaefer, Janet
VeniaminofEruption cloud/ plume/ column
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Caption:Veniaminof volcano in eruption with ash cloud to a height of less than 15,000 ft, traveling in a southeasterly direction. Image taken by Kaylynn Bernice outside the village office in Perryville, ~21 miles (~33 km) south-southeast of the active vent at ~10AM on November 21, 2018.
Date:November 21, 2018 9:59 AM
Photographer:Bernice, Kaylynn
VeniaminofEruption cloud/ plume/ column
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Caption:Veniaminof volcano in eruption with ash cloud to a height of less than 15,000 ft, traveling in a southeastely direction. Image taken by Kaylynn Bernice outside the village office in Perryville, ~21 miles (~33 km) south-southeast of the active vent at ~10AM on November 21, 2018.
Date:November 21, 2018 9:59 AM
Photographer:Bernice, Kaylynn
VeniaminofEruption cloud/ plume/ column
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Caption:Veniaminof volcano in eruption with ash cloud to a height of less than 15,000 ft, traveling in a southeasterly direction. Image taken by Kaylynn Bernice outside the village office in Perryville, ~21 miles (~33 km) south-southeast of the active vent at ~10AM on November 21, 2018.
Date:November 21, 2018 9:59 AM
Photographer:Schaefer, Janet
VeniaminofEruption cloud/ plume/ column
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Caption:Landsat 8 false color image (short-wave infrared, near infrared, and red bands) of the Veniaminof eruption from November 19, 2018, showing the active lava flow through low clouds within the caldera and the steam and ash plume drifting to the southeast.
Date:November 19, 2018 8:40 PM
Photographer:Dietterich, Hannah
VeniaminofCaldera/crater, Eruption cloud/ plume/ column, Lava flow
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Caption:Backscattered electron image of tephra sample erupted from Veniaminof and collected in Perryville on October 26, 2018. Most grains are composed of an andesitic matrix glass with abundant plagioclase, clinopyroxene, and olivine microlites. Sample provided by A.S. and images taken on a JEOL 6510LV Scanning Electron Microscope.
Date:November 16, 2018 12:00 AM
Photographer:Loewen, Matt
VeniaminofTephra
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Caption:Mt. Veniaminof eruption, November 2018. Photo courtesy of Zachary Finley.
Date:November 9, 2018 2:58 PM
Photographer:Finley, Zachary
VeniaminofCinder cone, Eruption cloud/ plume/ column, Lava flow
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Caption:Mt. Veniaminof eruption, November 2018. Photo courtesy of Zachary Finley.
Date:November 9, 2018 2:57 PM
Photographer:Finley, Zachary
VeniaminofCinder cone, Eruption cloud/ plume/ column, Lava flow
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Caption:Mt. Veniaminof eruption, November 2018. Photo courtesy of Zachary Finley.
Date:November 9, 2018 2:56 PM
Photographer:Finley, Zachary
VeniaminofCinder cone, Eruption cloud/ plume/ column, Lava flow
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Caption:Mt. Veniaminof eruption, November 2018. Photo courtesy of Zachary Finley.
Date:November 9, 2018 2:56 PM
Photographer:Finley, Zachary
VeniaminofCinder cone, Eruption cloud/ plume/ column, Lava flow
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