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Caption:A bear and her cub pass in front of the Redoubt DFR webcam, Sunday June 18, 2017.
Date:June 18, 2017 1:36 PM
Photographer:Alaska Volcano Observatory, Redoubt DFR webcam
RedoubtJust for fun
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Caption:View of Katmai caldera on June 15, 2017. Although the caldera lake is often icy in mid June, it was ice-free this year.
Date:June 15, 2017 3:49 PM
Photographer:Izbekov, Pavel
Katmai
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Caption:Timeline of eruptive events at Bogoslof volcano associated with the formation and destruction of the first known subaerial lava dome emplaced during the 2016-17 eruption. The eruption on June 10 destroyed the lava dome that developed June 5-10 and also appears to have destroyed all remaining parts of the 1992 lava dome. The blocks strewn over the surface on the southwest part of the island are likely all that remains of these two lava domes. COSMOS SkyMed compilation by Dave Schneider, USGS-AVO. Lava dome observations from Kim Angeli, USGS. Image on right provided under the Digital Globe NextView License. Images on left courtesy of the Italian Space Agency.
Date:June 13, 2017 12:00 AM
Photographer:waythomas, chris
ArrayBomb, Maar/tuff cone/tuff ring, Seamount/ submarine volcano
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Caption:Worldview satellite image of Bogoslof volcano collected at 23:13 UTC on June 12, 2017. The circular embayments were formed by a series of more than 40 explosions that began in mid-December, 2016. These explosions have greatly reshaped the island as material is removed and redeposited as air fall. Vigorous steaming is observed from a region to the south of the most active vent areas in the lagoon. Lava extrusion produced a circular dome that first rose above the water on June 5 and grew to a diameter of ~160 m (525 ft) before being destroyed by an explosion early in the day on June 10. Large blocks of the destroyed dome can be seen littering the surface of the island near the lagoon.
Date:June 12, 2017 11:13 PM
Photographer:Angeli, Kim
BogoslofDome, Eruption cloud/ plume/ column, Fumarolic activity, Maar/tuff cone/tuff ring, Steam, Volcano
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Caption:Worldview satellite image of Bogoslof volcano collected at 23:13 UTC on June 12, 2017. The circular embayments were formed by a series of more than 40 explosions that began in mid-December, 2016. These explosions have greatly reshaped the island as material is removed and redeposited as air fall. Vigorous steaming is observed from a region to the south of the most active vent areas in the lagoon. Lava extrusion produced a circular dome that first rose above the water on June 5 and grew to a diameter of ~160 m (525 ft) before being destroyed by an explosion early in the day on June 10. Large blocks of the destroyed dome can be seen littering the surface of the island near the lagoon.
Date:June 12, 2017 11:13 PM
Photographer:Angeli, Kim
BogoslofDome, Eruption cloud/ plume/ column, Fumarolic activity, Maar/tuff cone/tuff ring, Steam, Volcano
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Caption:Worldview satellite image of Bogoslof volcano collected at 23:13 UTC on June 12, 2017. The circular embayments were formed by a series of more than 40 explosions that began in mid-December, 2016. These explosions have greatly reshaped the island as material is removed and redeposited as air fall. Vigorous steaming is observed from a region to the south of the most active vent areas in the lagoon. Lava extrusion produced a circular dome that first rose above the water on June 5 and grew to a diameter of ~160 m (525 ft) before being destroyed by an explosion early in the day on June 10. Large blocks of the destroyed dome can be seen littering the surface of the island near the lagoon.
Date:June 12, 2017 11:13 PM
Photographer:Angeli, Kim
BogoslofDome, Eruption cloud/ plume/ column, Fumarolic activity, Maar/tuff cone/tuff ring, Steam, Volcano
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Caption:Photograph of Bogoslof's eruption plume, June 12, 2017, 5:53 pm, as viewed from Reese Bay, Unalaska Island. Photo courtesy of Kristin Metzler.
Date:June 12, 2017 5:53 PM
Photographer:Metzler, Kristin
BogoslofEruption cloud/ plume/ column
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Caption:Photograph of Bogoslof's eruption plume, June 12, 2017, 5:53 pm, as viewed from Reese Bay, Unalaska Island. Photo courtesy of Kristin Metzler.
Date:June 12, 2017 5:53 PM
Photographer:Metzler, Kristin
BogoslofEruption cloud/ plume/ column
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Caption:Photograph of Bogoslof's eruption plume, June 12, 2017, 5:53 pm, as viewed from Reese Bay, Unalaska Island. Photo courtesy of Kristin Metzler.
Date:June 12, 2017 5:53 PM
Photographer:Metzler, Kristin
BogoslofEruption cloud/ plume/ column
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Caption:Photo of Bogoslof Island, June 11, 2017. Photo taken from an Alaska Airlines jet enroute to Adak, by Cyrus Read, USGS/AVO.
Date:June 11, 2017 4:48 PM
Photographer:Read, Cyrus
BogoslofEruption cloud/ plume/ column
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Caption:Steaming Pavlof volcano and Pavlof Sister as viewed from the west shore of Unga Island. View is to the west.
Date:June 8, 2017 9:06 PM
Photographer:Schaefer, Carl
Pavlof, Pavlof SisterSteam
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Caption:Comparison of satellite radar images from May 31 and June 8, 2017 of Bogoslof volcano showing the newly emplaced lava dome. The diameter of the dome is about 110 m across and may be growing.
Date:June 8, 2017 12:00 AM
Photographer:Schneider, Dave
ArrayDome
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Caption:Photograph of volcanic plume from Bogoslof, taken by crew of USFWS R/V Tiglax, from about 30 miles away. Photo was taken at about 6:30 P.M., AKDT, June 5, 2017.
Date:June 5, 2017 6:30 PM
Photographer:US Fish & Wildlife Service, R/V Tiglax
BogoslofEruption cloud/ plume/ column
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Caption:Landsat-8 image of Bogoslof volcano collected on June 5, 2017 at 2200 UTC (1400 AKDT). This composite image of true color visible and thermal infrared data shows a sediment plume in the ocean that extends from the vent region in the horseshoe-shaped lagoon. Warm water outflow is highlighted in color extending northward from the lagoon where it mixes with colder ocean water. A hot vent just south of the lagoon can be seen in red, and several small puffs of white steam are visible coming from this region.
Date:June 5, 2017 2:00 PM
Photographer:Schneider, Dave
ArrayFumarolic activity, Lake, Maar/tuff cone/tuff ring, Seamount/ submarine volcano, Steam, Volcano
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Caption:Bogoslof Volcano, June 4, 2017. Photo courtesy of Ann Nightingale.
Date:June 4, 2017 8:14 PM
Photographer:Nightingale, Ann
BogoslofSteam
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Caption:Bogoslof Volcano, June 4, 2017. Photo courtesy of Ann Nightingale.
Date:June 4, 2017 8:14 PM
Photographer:Nightingale, Ann
BogoslofSteam
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Caption:Bogoslof Volcano, June 4, 2017. Photo courtesy of Ann Nightingale.
Date:June 4, 2017 8:14 PM
Photographer:Nightingale, Ann
BogoslofSteam
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Caption:Bogoslof Volcano, June 4, 2017. Photo courtesy of Ann Nightingale.
Date:June 4, 2017 8:13 PM
Photographer:Nightingale, Ann
BogoslofSteam
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Caption:Changes in the morphology of Bogoslof volcano following the eruption on May 28, 2017.
Date:May 31, 2017 12:00 AM
Photographer:Angeli, Kim
Array
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Caption:Worldview satellite image collected at 14:34 AKDT (22:34 UTC) on May 28, 2017 showing the initial development of the eruption cloud from Bogoslof volcano. The eruption began about 18 minutes prior to this image and the cloud rose to an altitude in excess of 40,000 ft above sea level. The white color of the eruption cloud is due to the large amount of water that is incorporated into the eruption column as the vent is located in shallow water. Image data provided under the Digital Globe NextView License.
Date:May 28, 2017 2:34 PM
Photographer:Schneider, Dave
BogoslofEruption cloud/ plume/ column, Volcano
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Caption:Worldview satellite image collected at 14:34 AKDT (22:34 UTC) on May 28, 2017 showing the initial development of the eruption cloud from Bogoslof volcano. The eruption began about 18 minutes prior to this image and the cloud rose to an altitude in excess of 40,000 ft above sea level. The white color of the eruption cloud is due to the large amount of water that is incorporated into the eruption column as the vent is located in shallow water. Image data provided under the Digital Globe NextView License.
Date:May 28, 2017 2:34 PM
Photographer:Schneider, Dave
ArrayEruption cloud/ plume/ column, Volcano
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Caption:Bogoslof May 28, 2017 eruption plume, as viewed from about 32 miles away. Photo courtesy of Trever Shaishnikoff.
Date:May 28, 2017 2:33 PM
Photographer:Shaishnikoff, Trever
BogoslofEruption cloud/ plume/ column
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Caption:Bogoslof May 28, 2017 eruption plume, as viewed from about 32 miles away. Photo courtesy of Trever Shaishnikoff.
Date:May 28, 2017 2:20 PM
Photographer:Shaishnikoff, Trever
BogoslofEruption cloud/ plume/ column
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Caption:Bogoslof May 28, 2017 eruption plume, as viewed from about 32 miles away. Photo courtesy of Trever Shaishnikoff.
Date:May 28, 2017 2:20 PM
Photographer:Shaishnikoff, Trever
BogoslofEruption cloud/ plume/ column
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Caption:Enlarged portions of May 28, 2017 satellite image of Bogoslof Island. Inset image on lower left shows pyroclastic fall and flow material emplaced over water. Some of the material appears to have been disturbed, possibly by the force of the eruption column. It is unclear if this material represents new land or material floating on the water. Also note tephra jets which are common features of many shallow submarine eruptions. The inset image in the upper right shows a weak base surge propagating from the base of the eruption column across the tuff ring. Image data provided under the Digital Globe NextView License.
Date:May 28, 2017 12:00 AM
Photographer:waythomas, chris
BogoslofEruption cloud/ plume/ column, Maar/tuff cone/tuff ring, Seamount/ submarine volcano, Tephra
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