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Volcano Hazard Program images.
Left photo shows a loose piece of siliceous sinter that was precipitated around a photosynthetic microbial mat in the Lower Geyser Basin. The microbial mat died when the outflow channel changed positions.
Left photo shows a loose piece of siliceous sinter that was precipitated around a photosynthetic microbial mat in the Lower Geyser Basin. The microbial mat died when the outflow channel changed positions.
On the left is Castle Geyser during an eruption with a pool from nearby Tortoise Shell Spring showing photosynthetic pigments at the bottom. The middle image is of a small pool in the Geyser Hill Group in the Upper Geyser Basin with an outflow channel full of yellow, green, orange, red, and brown pigmented phototrophic microbial mats.
On the left is Castle Geyser during an eruption with a pool from nearby Tortoise Shell Spring showing photosynthetic pigments at the bottom. The middle image is of a small pool in the Geyser Hill Group in the Upper Geyser Basin with an outflow channel full of yellow, green, orange, red, and brown pigmented phototrophic microbial mats.
(L) Green olivine crystals in lava from Mauna Loa’s 1868 eruption. (R) Microscope image of a single olivine crystal extracted from tephra at Kīlauea. This crystal is about 1 mm (less than 1/16 of an inch) tall.
(L) Green olivine crystals in lava from Mauna Loa’s 1868 eruption. (R) Microscope image of a single olivine crystal extracted from tephra at Kīlauea. This crystal is about 1 mm (less than 1/16 of an inch) tall.
Don Swanson describes the stratigraphy of Keanakāko‘i deposits near Uēkahuna Bluff at Kīlauea summit within Hawai‘i Volcanoes National Park.
Don Swanson describes the stratigraphy of Keanakāko‘i deposits near Uēkahuna Bluff at Kīlauea summit within Hawai‘i Volcanoes National Park.
Michael Randall is a software engineer who develops applications to view volcanic monitoring data for the USGS Volcano Science Center.
Michael Randall is a software engineer who develops applications to view volcanic monitoring data for the USGS Volcano Science Center.
A 200-kilogram (440-pound) fragment of the Canyon Diablo meteorite that was found at Meteor Crater in Arizona.
A 200-kilogram (440-pound) fragment of the Canyon Diablo meteorite that was found at Meteor Crater in Arizona.
Two weeks of earthquake activity preceding the September 29, 2021, eruption at Kīlauea summit. The regions of interest indicated on the map include: KS (Kīlauea summit); ML (Mauna Loa summit); P (Pāhala).
Two weeks of earthquake activity preceding the September 29, 2021, eruption at Kīlauea summit. The regions of interest indicated on the map include: KS (Kīlauea summit); ML (Mauna Loa summit); P (Pāhala).
Island of Hawai‘i Volcano Awareness Month 2022 calendar of programs, with descriptions.
Island of Hawai‘i Volcano Awareness Month 2022 calendar of programs, with descriptions.
Eruptive activity resumed today in Halema‘uma‘u crater, at the summit of Kīlauea volcano, after a brief pause of several days. This photograph shows spattering and lava effusion from the west vent, which has built a steep spatter cone. USGS image by M. Patrick.
Eruptive activity resumed today in Halema‘uma‘u crater, at the summit of Kīlauea volcano, after a brief pause of several days. This photograph shows spattering and lava effusion from the west vent, which has built a steep spatter cone. USGS image by M. Patrick.
During recent multi-day pauses in the ongoing Kīlauea summit eruption, a small portion of the Halemaʻumaʻu lava lake has consistently remained active: a small, ovular lava pond just north of the briefly dormant western fissure.
During recent multi-day pauses in the ongoing Kīlauea summit eruption, a small portion of the Halemaʻumaʻu lava lake has consistently remained active: a small, ovular lava pond just north of the briefly dormant western fissure.
On the afternoon of December 27, 2021, the summit eruption of Kīlauea was paused and showed only intermittent and weak crustal foundering in the formerly active west side of the lava lake in Halema‘uma‘u. This photo, looking down and toward the east, shows the topography of the formerly active pond of lava during the eruption pause.
On the afternoon of December 27, 2021, the summit eruption of Kīlauea was paused and showed only intermittent and weak crustal foundering in the formerly active west side of the lava lake in Halema‘uma‘u. This photo, looking down and toward the east, shows the topography of the formerly active pond of lava during the eruption pause.
View of the west vent in Halemaʻumaʻu and the lava lake, from the northwest rim of the caldera, looking east [V1cam]. Image taken December 23, 2021.
View of the west vent in Halemaʻumaʻu and the lava lake, from the northwest rim of the caldera, looking east [V1cam]. Image taken December 23, 2021.
Hannah Kruse is a geologist with the USGS USAID Volcano Disaster Assistance Program who focuses on volcanic eruption chronologies past and present.
Hannah Kruse is a geologist with the USGS USAID Volcano Disaster Assistance Program who focuses on volcanic eruption chronologies past and present.
Christopher Harpel is a geologist with the USGS-USAID Volcano Disaster Assistance Program.
Christopher Harpel is a geologist with the USGS-USAID Volcano Disaster Assistance Program.
Joseph Bard is a geographer with the U.S. Geological Survey Cascades Volcano Observatory.
Joseph Bard is a geographer with the U.S. Geological Survey Cascades Volcano Observatory.
Emily Bryant works as a student intern at the U.S. Geological Survey Cascades Volcano Observatory.
Emily Bryant works as a student intern at the U.S. Geological Survey Cascades Volcano Observatory.
Ben Pauk is a geophysicist based at the U.S. Geological Survey Cascades Volcano Observatory.
Ben Pauk is a geophysicist based at the U.S. Geological Survey Cascades Volcano Observatory.
Laura Clor is a gas geochemist who works with the five U.S. Geological Survey volcano observatories.
Laura Clor is a gas geochemist who works with the five U.S. Geological Survey volcano observatories.
Joel Robinson is a geographer and GIS specialist with the USGS Cascades Volcano Observatory.
Joel Robinson is a geographer and GIS specialist with the USGS Cascades Volcano Observatory.
Michael Albert Mitchell is a Mendenhall Postdoctoral Fellow working with the USGS Volcano Science Center.
Michael Albert Mitchell is a Mendenhall Postdoctoral Fellow working with the USGS Volcano Science Center.
Sally Sennert works with the Smithsonian Global Volcanism Program and the USGS Volcano Hazards Program.
Sally Sennert works with the Smithsonian Global Volcanism Program and the USGS Volcano Hazards Program.