Images

Mount Rainier Teacher's Workshop group photo, July 2010, Washington.

Professor Michael Ort (Northern Arizona University) and graduate student Joel Unema examine deposits from the 2008 eruption of Okmok volcano in Alaska as part of their research to reconstruct the complex history of the eruption.  Dr.

Page from Plan Your Trip to Mount Rainier, an outreach activity used during a teacher workshop.

Pinnacles formed in Mazama pyroclastic flow deposit as erosion revealed fumarole chimneys that formed shortly after 7,700 ka eruption released gas, Crater Lake.

Crater Lake panorama seen from the lake's southern shore. Wizard Island is cone in western portion of lake. Oregon

Lava fountains up to 20 m (65 ft) high erupted from fissures on the north flank of Mauna Loa early Sunday morning, July 6, 1975. USGS photo.

On July 6, 1975, eruptive fissures opened along Mauna Loa

The lava pond resides deep within the vent cavity in Halema‘uma‘u, at a depth of about 180 m (200 yards). Photograph taken from the former Halema‘uma‘u Overlook on June 20, 2010.

Colorado-native Rio Grande Cuttroat Trout salvaged after Medano Creek wildfire, Great Sand Dunes National Park, Colorado.

Medano Creek after wildfire. 

A small rootless shield is forming on the upper flow field over the breakout point of the Quarry flow, the flow that has been feeding the ocean entry for the past several weeks. The shield is approximately 10-15 m (yards) high. This photo was taken looking SSW, with the upslope direction to the right.

Pacific Tsunami Warning Center building.

Seismic station VALT in Mount St. Helens crater, view toward the south.

The recent activity within Pu`u `Ō `ō crater quieted over the past several days. This photo shows the new, dark-colored lava that covered the crater floor. A new gas vent on the east wall of the crater (top left) also appeared over the couple of weeks.

Sandra Brosnahan (USGS) collecting water samples (Long Island, NY).

The new gas vent on the east wall of Pu`u `Ō `ō crater opening up next to an older vent (the dark opening to the right of the new gas vent) that sealed shut in the past few months. The new vent has been incandescent at night for the past few days.

Panorama (180 degree field of view) photograph of smoke rising from the Schultz Pass fire near Flagstaff, Arizona, at 1:34 p.m. on its day of ignition, June 20, 2010.  Over the following 10 days, the fire burned an estimated 15,075 acres, or more than 23 square miles of northern Arizona forest, and cost more than \$8.6 million to fight.

Data are collected every two minutes and sent by radio once per day to a server where values are plotted and released to the public internet.

Kīlauea volcano's summit eruption plume as viewed from the southeast flank of Mauna Loa on 11/30/2009 (top) and 12/20/2009 (bottom). The eruption plume's visible appearance is a complex function of physical eruptive vent conditions, meteorology and atmosp

View of the lava pond in Pu`u `Ō `ō crater, taken from the southwest rim of the cone. The pond is approximately 75 meters below the visible section of the rim in the upper edge of the photograph.

Lava fountains erupt from a fissure in the southwestern part of Moku`aeoweo, Mauna Loa's summit caldera, on April 11, 1940 (view looking to the south-southeast). Patches of white snow cling to the caldera walls as fluid pahoehoe lava flows spread across