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Caption:Minor steaming at the summit of Great Sitkin, June 17, 2018. Photo courtesy of Alaska Airlines Captain Dave Clum. A small ash deposit extends away from the vent, likely deposited during the June 10, 2018 explosion event.
Date:June 17, 2018 8:50 PM
Photographer:Clum, Dave
Great SitkinDome, Steam
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Caption:Minor steaming at the summit of Great Sitkin, June 17, 2018. Photo courtesy of Alaska Airlines Captain Dave Clum. A small ash deposit extends away from the vent, likely deposited during the June 10, 2018 explosion event.
Date:June 17, 2018 12:00 AM
Photographer:Clum, Dave
Great SitkinDome, Steam
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Caption:Sentinel-2 satellite image of Great Sitkin acquired on June 11, 2018 at 23:00 UTC showing an ash deposit extending for about 2 km to the southwest. Ash was likely deposited during the brief explosion on June 10, 2018. Minor steaming from a vent through the 1974 lava flow is also visible in this image. View is from the southwest.
Date:June 11, 2018 11:00 PM
Photographer:ESA Sentinel-2, ; Schneider, David
Great SitkinDome, Steam, Tephra
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Caption:Active fumaroles at the summit of Makushin volcano.
Date:June 7, 2018 7:01 PM
Photographer:Schaefer, Janet
MakushinFumarolic activity
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Caption:Active fumaroles at the summit of Makushin volcano emitting a plume of steam and gas; view is from Dutch Harbor on June 7, 2018.
Date:June 7, 2018 12:00 AM
Photographer:Woodbridge, Abi
MakushinFumarolic activity
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Caption:Mount Redoubt's 2009 lava dome, May 27, 2018. Photo courtesy of Pat Madland.
Date:May 27, 2018 10:18 AM
Photographer:Madland, Pat
RedoubtDome, Steam
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Caption:Mount Redoubt's 2009 lava dome, May 27, 2018. Photo courtesy of Pat Madland.
Date:May 27, 2018 10:18 AM
Photographer:Madland, Pat
RedoubtDome, Steam
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Caption:Well, hello! Grizzly bears are out and about, inspecting AVO's equipment at Shishaldin volcano.
Date:May 10, 2018 7:11 PM
Photographer:Schaefer, Janet
ShishaldinJust for fun, Non-volcanic, Seismic/GPS installation
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Caption:April 20, 2018 WorldView-3 image of Bogoslof Island. The land area of the island is about 1.4 square km and is about the same as observed in a previous image from late February, 2018. The area of minor steaming is slightly smaller and is consistent with the decline in unrest and cooling of the deposits emplaced during the 2016-17 eruptive period. Satellite data obtained with Digital Globe NextView License.
Date:April 20, 2018 12:00 AM
Photographer:waythomas, chris
BogoslofSeamount/ submarine volcano, Steam
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Caption:Steam plume from Shishaldin Volcano in morning light. The GPS antenna on a steel tripod is operated by the Plate Boundary Observatory (PBO), part of the NSF funded EarthScope program.
Date:April 11, 2018 8:30 AM
Photographer:Dot, Star
ShishaldinSeismic/GPS installation, Steam, Stratovolcano
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Caption:Topography and bathymetry of Atka and Kasatochi Islands. Bathymetric contours in green were presumably above sea level during maximum Pleistocene ice advances. See http://doi.org/10.14509/29718 for details.
Date:April 6, 2018 11:06 AM
Photographer:Nye, Christopher
Atka, Kasatochi
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Caption:Timeline of development of Whisky talus, on northern Kasatochi Island. The talus was built on top of 2008 eruption deposits, becoming progressively larger over a period of a few years (bluffs immediately behind the beach are entirely 2008 deposits). The green bloom of guano-based algae first seen in August 2011 shows that the talus had been colonized by auklets, perhaps the same individuals that were displaced from Tundering talus. The yellow plus marks the same feature in each photograph. Two geologists sitting on the beach are circled in yellow. Photographs by Jeff Williams (USFWS) and Chris Nye. See http://doi.org/10.14509/29718 for additional details.
Date:April 6, 2018 11:06 AM
Photographer:Nye, Christopher
Kasatochi
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Caption:Figure 8 from http://doi.org/10.14509/29718. Immediately after, or during the waning stages of the 2008 eruption the uppermost fine-grained eruption deposits sloughed, forming extensive debris flows (Qd). Areas labeled Q8p are 2008 deposits where the uppermost layer has not been remobilized. (A) Is an oblique view of a satellite image from September 17, 2008. (B) Is a field photograph taken by Jeff Williams (USFWS) on June 13, 2009. (C) Is a field photograph taken by Chris Nye on June 13, 2009.
Date:April 6, 2018 11:06 AM
Photographer:Nye, Christopher
KasatochiDebris flow/mudflow/landslide/lahar
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Caption:A dense network of gullies developed in the 2008 eruption deposits, probably starting during the waning phase of the eruption. Many of these gullies have eroded down to, and past, the pre-eruption surface, exposing still-viable turf. See http://doi.org/10.14509/29718 for additional details. Photographs taken by C. Nye and R. Buchheit (USFWS).
Date:April 6, 2018 11:06 AM
Photographer:Nye, Christopher
Kasatochi
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Caption:Hand samples and a photomicrograph of gabbroic inclusions from the 2008 Kasatochi eruption. See http://doi.org/10.14509/29718 for additional details.
Date:April 6, 2018 11:06 AM
Photographer:Nye, Christopher
Kasatochi
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Caption:Monkey talus formed high on the northern flank of Kasatochi sometime after the 2008 eruption. The green guano-based algae covering the talus in 2013 shows that the talus had been colonized by birds (species unknown). See http://doi.org/10.14509/29718 for additional details.
Date:April 6, 2018 11:06 AM
Photographer:Nye, Christopher
Kasatochi
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Caption:Aerial view of fumaroles at Kupreanof, taken April 2, 2018. Image courtesy of Dan Pepin, U.S. Fish and Wildlife Service.
Date:April 2, 2018 6:18 PM
Photographer:Pepin, Dan
KupreanofFumarolic activity
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Caption:Aerial view of Kupreanof fumaroles, April 2, 2018. Image courtesy of Dan Pepin, U.S. Fish and Wildlife Service.
Date:April 2, 2018 6:17 PM
Photographer:Pepin, Dan
KupreanofFumarolic activity
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Caption:Aerial view of the active cone of Veniaminof, April 2, 2018. Photo courtesy of Dan Pepin, U.S. Fish and Wildlife Service.
Date:April 2, 2018 3:45 PM
Photographer:Pepin, Dan
VeniaminofCinder cone, Steam
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Caption:Aerial view of the active cone of Veniaminof, April 2, 2018. Photo courtesy of Dan Pepin, U.S. Fish and Wildlife Service.
Date:April 2, 2018 3:45 PM
Photographer:Pepin, Dan
VeniaminofCinder cone, Steam
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Caption:Aerial view of Chiginagak's fumaroles, April 2, 2018. Image courtesy of Dan Pepin, U.S. Fish and Wildlife Service.
Date:April 2, 2018 2:18 PM
Photographer:Pepin, Dan
ChiginagakFumarolic activity
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Caption:Second page of Information Circular flyer made for AVO's 30th anniversary. Publication details here: http://dggs.alaska.gov/webpubs/dggs/ic/text/ic067.pdf
Date:April 1, 2018 12:00 AM
Photographer:Mulliken, Katherine
Array
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Caption:First page of informational flyer for AVO's 30th anniversary. Click 'full size' link for higher resolution.
Date:April 1, 2018 12:00 AM
Photographer:Mulliken, Katherine
Array
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Caption:Multispectral Worldview-3 image of Bogoslof collected Feb. 14, 2018. Steaming and likely still warm area just northeast of the tuff cone is evident. Longshore drift has generated a nice fishhook tail at the southeast end of the island. The island area is holding steady at about 1.6 square km which is basically unchanged over the past several months. Image data acquired with the Digital Globe NextView License.
Date:February 14, 2018 10:34 PM
Photographer:waythomas, chris
BogoslofFumarolic activity, Maar/tuff cone/tuff ring
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Caption:A view of Mt. Edgecumbe, near Sitka, Alaska, as seen from an Alaska Airlines flight on February 2, 2018. Photo by Cyrus Read, USGS/AVO.
Date:February 2, 2018 12:42 PM
Photographer:Read, Cyrus
EdgecumbeVolcano
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