Images

Mount Jefferson (pointed peak in middle) and Three Sisters (to the right) in Oregon, south-facing aerial view as seen from Mount St. Helens.

The station recording this pattern of seismicity was called Yellow Rock (YEL), which was approximately 1 km north of the 2004-2008 vent. YEL was removed in 2007 before the advancing Crater Glacier reached it. The YEL site is now under a hundred or so feet of ice.

Pathway leading to the JA volcano at the Petroglyph National Monument.

The Black Volcano at the Petroglyph National Monument viewed from the southwest.

The Vulcan Volcano at the Petroglyph National Monument viewed from the southwest.

Global Positioning System receiver (dome on pole) and seismometer (box on ground in distance) at a volcano monitoring station for Three Sisters in Central Oregon. Solar panel mounted to pole.

New Orleans, Louisiana following Hurricane Katrina.

Fence that used to protect the public from the pools now goes through one.

Walking down the path to Hot Creek.

The loading station of the Mammoth Mountain gondola.

Viewing domes and craters from the Mammoth Mountain gondola.

The tree kill area at Horseshoe Lake is visible from the top of Mammoth Mountain.

Field trip starting point on Lookout Mountain.

Tree kills at Horseshoe Lake.

Professor Emeritus Ed Hogan attending the September 1, 2005 dedication ceremony of the SDSU and USGS EROS Center Geographic Information Science Center of Excellence (GIScCE) in Brookings, SD.

Robert (Tad) Perry Executive Director SD Board of Regents speaking at the September 1, 2005 dedication ceremony of the SDSU and USGS EROS Center Geographic Information Science Center of Excellence (GIScCE) in Brookings, SD.

Sr. Scientist Gabriel Senay attending the September 1, 2005 dedication ceremony of the SDSU and USGS EROS Center Geographic Information Science Center of Excellence (GIScCE) in Brookings, SD.

Rapid Response Inundation Map of New Orleans after Hurricane Katrina in 2005. 

Overlain photographs from a time-lapse camera show the East Lae‘apuki lava delta before and after part of the delta collapsed on August 27, 2005. The collapse occurred piecemeal during a 90-minute period. Loose rocks on the remaining delta were deposited there by large waves generated during the initial collapse.

Embayment of lava delta shows result of collapse. The initial collapse was large enough to send waves washing over much of the east half of the delta, because visibility was completely lost for almost 20 minutes, due to a steam white-out. Note rocky debris hurled by the waves onto the delta surface in foreground.

Caught by a time-lapse camera, collapse of East Lae‘apuki lava delta in the early morning hours of August 27, 2005, generated waves that swept large lava fragments onto the delta. Daylight revealed boulders as large as 1 m (3 ft) in diameter on the surviving delta surface directly beneath the camera.