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Volcano Hazard Program images.
View of the church's front entrance, showing the collapsed wall under the eave, framing, and wall above the doors. The pile of building debris shows why taking cover (Drop! Cover! Hold on!) inside a building is safer than trying to run outside or stand in a doorway when the ground shakes.
View of the church's front entrance, showing the collapsed wall under the eave, framing, and wall above the doors. The pile of building debris shows why taking cover (Drop! Cover! Hold on!) inside a building is safer than trying to run outside or stand in a doorway when the ground shakes.
Seismic station at Yellow Rock (YEL) with the toe of the west arm of Crater Glacier in the background. This station site was eventually covered by the glacier.
Seismic station at Yellow Rock (YEL) with the toe of the west arm of Crater Glacier in the background. This station site was eventually covered by the glacier.
Lava pours over the former sea cliff at East Lae‘apuki onto an active lava delta (left of cliff). The lava broke out from a lava tube just inland of the sea cliff (right of photograph).
Lava pours over the former sea cliff at East Lae‘apuki onto an active lava delta (left of cliff). The lava broke out from a lava tube just inland of the sea cliff (right of photograph).
Seismic station at Three Sisters volcano in Central Oregon. Seismometer in box on the ground with data transmission antenna mounted on pole.
Seismic station at Three Sisters volcano in Central Oregon. Seismometer in box on the ground with data transmission antenna mounted on pole.
Columnar joints in horizontal orientation along the Ricksecker lava flow margin. Columns formed as lava cooled against valley filling glaciers leaving flows perched high on Mount Rainier's ridges.
Columnar joints in horizontal orientation along the Ricksecker lava flow margin. Columns formed as lava cooled against valley filling glaciers leaving flows perched high on Mount Rainier's ridges.
Panoramic photograph from the southern rim of Mount St. Helens' crater rim looking north with accompanying annotation.
Panoramic photograph from the southern rim of Mount St. Helens' crater rim looking north with accompanying annotation.
View the annotated version of this photograph.
View the annotated version of this photograph.
View northward from Mount St. Helens' crater rim, July 2006.
View northward from Mount St. Helens' crater rim, July 2006.
View the annotated image.
Aerial view of Excelsior Geyser (in the foreground) and Grand Prismatic Spring in Yellowstone’s Midway Geyser Basin. The colors around the thermal features are locations of different thermophile communities. These thermophiles fix carbon, both from the atmosphere and from the hot water. Credit Jim Peaco; June 22, 2006; Catalog #20386d; Original #IT8M4075
Aerial view of Excelsior Geyser (in the foreground) and Grand Prismatic Spring in Yellowstone’s Midway Geyser Basin. The colors around the thermal features are locations of different thermophile communities. These thermophiles fix carbon, both from the atmosphere and from the hot water. Credit Jim Peaco; June 22, 2006; Catalog #20386d; Original #IT8M4075
San Francisco Volcanic Field Oct 12, 2003 ASTER satellite image draped over USGS topographic data. San Francisco Mountain upper center-right, volcanic field cinder cones and lava flows in foreground.
San Francisco Volcanic Field Oct 12, 2003 ASTER satellite image draped over USGS topographic data. San Francisco Mountain upper center-right, volcanic field cinder cones and lava flows in foreground.
Lava delta at East Lae‘apuki on the southeast coast of Kīlauea Volcano is about 17 hectares (43 acres). The delta extends about 400 m seaward from the sea cliff and is about 850 m long parallel to the shoreline. The steep sea cliff embayment resulted from collapses of earlier deltas; the collapses undermined and took away parts of the cliff.
Lava delta at East Lae‘apuki on the southeast coast of Kīlauea Volcano is about 17 hectares (43 acres). The delta extends about 400 m seaward from the sea cliff and is about 850 m long parallel to the shoreline. The steep sea cliff embayment resulted from collapses of earlier deltas; the collapses undermined and took away parts of the cliff.
Substantial cracks cutting across a lava delta are clear indication that the delta is subsiding as it grows across the unstable pile of interfingering lava flows and fragments built on the steep submarine slope. The larger cracks on this delta are 1-2 m (3-6 ft) wide.
Substantial cracks cutting across a lava delta are clear indication that the delta is subsiding as it grows across the unstable pile of interfingering lava flows and fragments built on the steep submarine slope. The larger cracks on this delta are 1-2 m (3-6 ft) wide.
Helicopter flying toward lava spine at Mount St. Helens to collect rocks—note the "Jaws" collector hanging underneath. April 28, 2007
Helicopter flying toward lava spine at Mount St. Helens to collect rocks—note the "Jaws" collector hanging underneath. April 28, 2007
Old Faithful Geyser in eruption. Under Yellowstone Research Permit YELL-SCI-8030, 13 mineralized wood specimens were collected from the geyser mound. The dates of the mineralized wood samples imply that such eruptions did not take place for over a century between the mid-13th to mid-14th centuries.
Old Faithful Geyser in eruption. Under Yellowstone Research Permit YELL-SCI-8030, 13 mineralized wood specimens were collected from the geyser mound. The dates of the mineralized wood samples imply that such eruptions did not take place for over a century between the mid-13th to mid-14th centuries.
A US Army helicopter from Pohakuloa Training Area flies overhead of palila researchers on Mauna Kea volcano, Hawai‘i Island, Hawai‘i.
A US Army helicopter from Pohakuloa Training Area flies overhead of palila researchers on Mauna Kea volcano, Hawai‘i Island, Hawai‘i.
Glacier Peak is the tallest peak amongst a sea of many mountains in northern Washington.
Glacier Peak is the tallest peak amongst a sea of many mountains in northern Washington.
Upper west face of Glacier Peak, Washington.
Upper west face of Glacier Peak, Washington.
SEM (Scanning electron Microscope) image of a vesicular ash particle erupted by Augustine volcano on January 13, 2006. The ash sample was collected during the ashfall in Homer, Alaska by John Paskievitch, AVO.
SEM (Scanning electron Microscope) image of a vesicular ash particle erupted by Augustine volcano on January 13, 2006. The ash sample was collected during the ashfall in Homer, Alaska by John Paskievitch, AVO.
Helicopter overflight photo taken this morning - view toward the west directly above Kapoho Crater. The fissure 8 lava channel now bends sharply to the south on the western edge of the crater after being blocked and diverted yesterday.
Helicopter overflight photo taken this morning - view toward the west directly above Kapoho Crater. The fissure 8 lava channel now bends sharply to the south on the western edge of the crater after being blocked and diverted yesterday.
Map as of 1:00 p.m. HST, July 11, 2018. Given the dynamic nature of Kīlauea's lower East Rift Zone eruption, with changing vent locations, fissures starting and stopping, and varying rates of lava effusion, map details shown here are accurate as of the date/time noted. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015.
Map as of 1:00 p.m. HST, July 11, 2018. Given the dynamic nature of Kīlauea's lower East Rift Zone eruption, with changing vent locations, fissures starting and stopping, and varying rates of lava effusion, map details shown here are accurate as of the date/time noted. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015.