Images

Flood-alert instrument tower with electronics shelter and precipitation gage at top of tower.

Stream channel cross-section measurements—instrument that uses laser pulses to survey distance to a reflector operated by a second crew member, Mount St. Helens.

Global Positioning System receiver (called a GPS monument) at North Rim Station, a monitoring location at Newberry volcano, Oregon.

Upper aerial photograph shows Rodanthe, NC, looking south along the coast on August 30, 2011, three days after landfall of Hurricane Irene. The central and lower aerial photographs show pre-storm and post-storm extreme coastal change, with the yellow arrow in all 3 photographs pointing to the same cottage.  

August 3 photo showing the collapsed floor within Pu‘u ‘Ō‘ō Crater in the foreground and two lava flow branches each burning some forest—northwest branch to the right and south branch to the left.

Damage to the Washington National Cathedral in DC from the earthquake in Virginia on August 23, 2011.

Damage to the Washington National Cathedral in DC from the earthquake in Virginia on August 23, 2011.

Frank Perret's photos from early July 1911 showing the island in the lake at the bottom of a smaller Halema‘uma‘u Crater. The view is looking southwest and the ledge up near the west rim was known as the January 1910 bench, a remnant of an earlier lava level in the crater.

Electronics for controlling the moving arm in the open pressure housing.

Photograph of cutbank outcrop at Home Bay marsh, showing the subsurface stratigraphy to 90-cm depth exposed during low tide. Holes about halfway down the exposure are from burrowing crabs populating a narrow zone at the transition from underlying inorganic mud deposits to overlying peaty mud to peat deposits.

Gas sampling in Sherman Crater, Mount Baker, Washington. Panoramic photograph with USGS scientist in center-left of photo beneath fumarole.

Enthusiastic students during a Mount Rainier Teacher Workshop, Washington.

USGS CVO staff member assisting a teacher with mineral identification during July 2011 Mount Rainer Teacher Workshop.

A Scroll down to the photo taken on June 29 to compare the amount of uplift the floor of the crater has endured in the last month. This photo was taken from a similar spot to the lower right of the three photos posted that day.

View looking south across Newberry caldera towards the Big Obsidian flow (left of center) and Paulina Peak, with Paulina Lake in foreground. Photo taken from the north rim of the caldera.

Gas sampling with a CO2 Infrared Spectrometer at Mount St. Helens' September Lobe lava dome, Washington.

A panoramic view taken from an island in the Yellowstone River.  Upstream is to the right side of the picture while downstream is to the left.  The middle of the picture looks straight across to the descending right bank. 

Road flooded by the Souris River near Foxholm, North Dakota. USGS personnel were there to measure the streamflow. Streamflow was approximately 16,900 cubic feet per second.

The Souris River near Foxholm, North Dakota. USGS personnel were there to measure the streamflow. Streamflow was approximately 16,900 cubic feet per second.

USGS hydrographer Jerrod Wheeler (in cablecar) measures flood flows right before the gagehouse washes away.

06225500 Wind River near Crowheart, WY: Jul 01 2011; 13,900 ft3/s

The Souris River flooded road near Foxholm, North Dakota. USGS personnel were there to measure the streamflow. Streamflow was approximately 16,900 cubic feet per second.