Images

USGS scientist observing Mount St. Helens' crater and dome from the Brutus Camera station.

Morning overflight view to the south. The Cape Kumukahi Light can be seen in amongst the flows in the lower portion of the photograph. Ocean entry is still present just offshore of Kapoho with a more robust entry to the south (larger steam plume) near Ahalanui Beach Park.

Mount Baker and Bellingham, Washington on Bellingham Bay.

Mount Adams western profile as seen from Mount St. Helens.

Summit of Glacier Peak, Washington, view toward the east.

This lava delta at Lae‘apuki added about 24 hectares (60 acres) of new land to the southeast coast of Kīlauea in 2006, but 6.5 hectares (16 acres) slid into the sea in 2007. White plume marks location of lava entering the sea through a tube whose location is shown by blueish fume in middle right.

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.

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.

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.

View the annotated version of this photograph.

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

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.

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

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-13^th to mid-14^th centuries.