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| Image | Details | Volcanoes | Keywords |
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| Caption: | GeoDIVA - Behind the Scenes.
Database and web work might not be as glamorous as flying around a snow-capped Aleutian volcano, but we sure appreciate the hard work these two do to put volcano information at our finger tips through our internal logs, chat server, website, image database, remote sensing database, eruptive history narratives, geochemistry, and more. Thank you Cheryl Cameron and Scott Crass! |
| Date: | August 30, 2019 4:11 PM |
| Photographer: | Schaefer, Janet |
| Array | Just for fun, People in action |
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| Caption: | Tim Orr and Kristi Wallace (USGS, AVO) examining tephra deposits north of Iliamna. |
| Date: | August 22, 2019 10:08 AM |
| Photographer: | Loewen, Matt |
| Iliamna | Fieldwork operations, People in action, Tephra |
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| Caption: | Iliamna summit from a helicopter overflight, with Redoubt just visible in the upper left. |
| Date: | August 21, 2019 10:43 AM |
| Photographer: | Loewen, Matt |
| Iliamna | Stratovolcano |
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| Caption: | Unaltered lava and and possible unconsolidated deposits above altered edifice rocks, visible below Iliamna's summit ice-cap. |
| Date: | August 21, 2019 10:43 AM |
| Photographer: | Loewen, Matt |
| Iliamna | Stratovolcano |
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| Caption: | East flank fumarole field near the summit of Iliamna. |
| Date: | August 21, 2019 10:42 AM |
| Photographer: | Loewen, Matt |
| Iliamna | Fumarolic activity |
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| Caption: | South flank fumarole filed near the summit of Iliamna. |
| Date: | August 21, 2019 10:42 AM |
| Photographer: | Loewen, Matt |
| Iliamna | Fumarolic activity |
 |
| Caption: | Summit of Iliamna with relatively unaltered lavas unconformably overlying highly altered edifice lavas below the summit icecap. |
| Date: | August 21, 2019 10:42 AM |
| Photographer: | Loewen, Matt |
| Iliamna | Stratovolcano |
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| Caption: | North and South Twin peaks south of Iliamna viewed on a summit overflight. Note hazy consitions from regional wildfire smoke. |
| Date: | August 21, 2019 10:38 AM |
| Photographer: | Loewen, Matt |
| Iliamna | Stratovolcano |
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| Caption: | Two inclusions visible in a flow-banded lava flow between Johnson and Tuxedni Glaciers. The upper right inclusion in a plutonic xenolith, and the bottom right is a possible magmatic enclave. |
| Date: | August 19, 2019 4:04 PM |
| Photographer: | Loewen, Matt |
| Iliamna | Lava flow |
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| Caption: | Part of the 2019 Iliamna geology field team at geophysical station ILW on the NW flank of Iliamna. From left: Matt Loewen (USGS, AVO), Andy Calvert (USGS, CalVO), Tim Orr (USGS, AVO), Dawnika Blatter (USGS, CalVO), and Kristi Wallace (USGS, AVO). |
| Date: | August 19, 2019 3:16 PM |
| Photographer: | Loewen, Matt |
| Iliamna | Fieldwork operations, People in action |
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| Caption: | This high-resolution image of the summit crater of Cleveland Volcano shows a dark ring that represents the most recent lava dome from January with a crater inside. Within the crater, a small vent region in black visible light but bright in the near infrared. |
| Date: | August 17, 2019 10:42 PM |
| Photographer: | Dietterich, Hannah |
| Cleveland | Dome |
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| Caption: | Iliamna SW flank above Umbrella Glacier. |
| Date: | August 17, 2019 4:52 PM |
| Photographer: | Loewen, Matt |
| Iliamna | Stratovolcano |
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| Caption: | August 2019 views of the summit crater of Makushin Volcano. Heat from vigorous fumarolic activity is melting depressions, holes, and caves in the glacial ice. Sulfur rich mineral precipitates paint the ground yellow near fumaroles. Pastel earthen tones of altered rock and blue lake water add to the palette of colors. |
| Date: | August 16, 2019 4:20 PM |
| Photographer: | Kaufman, Max |
| Makushin | Caldera/crater, Fumarolic activity, Glacier, Lake, Shield volcano, Volcano |
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| Caption: | August 2019 views of the summit crater of Makushin Volcano. Heat from vigorous fumarolic activity is melting depressions, holes, and caves in the glacial ice. |
| Date: | August 16, 2019 4:20 PM |
| Photographer: | Kaufman, Max |
| Makushin | Caldera/crater, Fumarolic activity, Glacier, Lake, Shield volcano, Volcano |
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| Caption: | August 2019 views of the summit crater of Makushin Volcano. Heat from vigorous fumarolic activity is melting depressions, holes, and caves in the glacial ice. A low plume of sulfurous volcanic gases drifts off to the NNE. |
| Date: | August 16, 2019 4:19 PM |
| Photographer: | Kaufman, Max |
| Makushin | Caldera/crater, Fumarolic activity, Glacier, Lake, Shield volcano, Volcano |
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| Caption: | Makushin Volcano: summit observation and gas measurement flight, August 16th, 2019. Vigorous fumaroles in the vicinity of the summit crater emit sulfur rich volcanic gases, and a low plume drifts off to the north. Heat from the volcano melts depressions, holes and caves in the glacial ice. |
| Date: | August 16, 2019 4:00 PM |
| Photographer: | Kaufman, Max |
| Makushin | Caldera/crater, Fumarolic activity, Glacier, Lake, Shield volcano, Volcano |
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| Caption: | AVO/DGGS field technician Malcolm Herstand installs new [polycarbonate shielded] solar panels at a critical Okmok repeater station OKNR. The old set had been frosted over by windblown grit and rocks and was due for a swap. |
| Date: | August 16, 2019 10:21 AM |
| Photographer: | Kaufman, Max |
| Okmok | Fieldwork operations, People in action, Seismic/GPS installation |
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| Caption: | Infrared (and color) video of Shishaldin Volcano spewing lava and smoke on 16 August 2019, recorded with a FLIR Star Safire HD imaging system mounted under the nose of a NOAA Twin Otter airplane. Video courtesy of Shawn Dahle.
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| Date: | August 16, 2019 12:00 AM |
| Photographer: | Dahle, Shawn |
| Array | Cinder cone, Eruption cloud/ plume/ column, Lava fountaining, Steam, Tephra |
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| Caption: | The crater of Shishaldin is visible in this DigitalGlobe image from 2019-08-15. The spatter cone that has been building within the crater can be seen here with an incandescent top that also the source of a wispy plume. Above the spatter cone to the north, the snow has been largely buried underneath tephra from the strombolian activity. Shadows obscure the southern portion of the crater. |
| Date: | August 15, 2019 10:43 PM |
| Photographer: | Dietterich, Hannah |
| Shishaldin | |
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| Caption: | NW flank of Iliamna viewed from geophysical station ILW. |
| Date: | August 15, 2019 3:45 PM |
| Photographer: | Loewen, Matt |
| Iliamna | Stratovolcano |
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| Caption: | Panorama of the Tuxedni Glacier and north flank of Iliamna from geophysical station ILW. |
| Date: | August 15, 2019 2:19 PM |
| Photographer: | Loewen, Matt |
| Iliamna | Glacier, Stratovolcano |
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| Caption: | Andy Calvert (USGS, CalVO) approaching a lava flow outcrop on the NW side of Iliamna (summit in background on right). The steep lava flow face and thickness is likely the result of emplacement against ice. |
| Date: | August 15, 2019 1:30 PM |
| Photographer: | Loewen, Matt |
| Iliamna | Fieldwork operations, Lava flow, People in action, Tuya |
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| Caption: | North flank of Iliamna and the head of the Tuxedni Glacier. |
| Date: | August 15, 2019 10:06 AM |
| Photographer: | Loewen, Matt |
| Iliamna | Glacier, Stratovolcano |
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| Caption: | Summit crater of Shishaldin volcano, August 15, 2019. Satellite data obtained with Digital Globe NextView License. |
| Date: | August 15, 2019 12:00 AM |
| Photographer: | waythomas, chris |
| Shishaldin | Caldera/crater, Lava fountaining, Volcano |
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| Caption: | Upper portion of the debris covered Red Glacier on the east flank of Iliamna. |
| Date: | August 14, 2019 5:22 PM |
| Photographer: | Loewen, Matt |
| Iliamna | Debris flow/mudflow/landslide/lahar, Glacier, Stratovolcano |
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