Images

Trace of Augustine ash on car hood, Homer, Alaska, January 2006.

Family Emergency Preparedness Plan

White Salmon River (Washington) at USGS gauge site, 2.3 km downstream of Condit Dam, looking downstream: (a) 53 min before breaching; (b) 20 min after breaching, at discharge peak; (c) 76 min after breaching, at peak sediment concentration, with high water line evident; (d) ~2.5 h after breaching, discharge has returned to background and sediment concentration is f

Lahar devastation after the eruption of Mount Pinatubo, Philippines.

Hood to protect air intake from ashfall for GenSet equipment in Bariloche, Argentina, following 2011-2012 eruption of Cordon Caulle volcano, Chile.

Field-trip guide to Columbia River flood basalts, associated rhyolites, and diverse post-plume volcanism in eastern Oregon available at https://pubs.er.usgs.gov/publication/sir20175022O.

Panoramic image of Belacázar Village eight years after the 2008 lahar innundation. Lahar deposits in the foreground of the town are now soccer fields and a dirt bike track.

The Buffalo Soldiers of the 25th Infantry Regiment Bicycle Corps walk their cycles up Minerva Terrace, Mammoth Hot Springs, Yellowstone National Park. Photo by F. Jay Haynes, 1896.  Montana Historical Society Research Center, Haynes Foundation Photograph Collection, H-3615. Used with permission from the Montana Historical Society.

The Buffalo Soldiers of the 25th Infantry Regiment Bicycle Corps pose on Minerva Terrace, Mammoth Hot Springs, Yellowstone National Park. Pvt. John Findley, front left, was the primary bicycle mechanic for the unit, and so carried a heavy toolbox attached to his handlebars.  Photo by F.

The Buffalo Soldiers of the 25th Infantry Regiment Bicycle Corps ride on an inactive portion of Minerva Terrace, Mammoth Hot Springs, Yellowstone National Park. Photo by F. Jay Haynes, 1896.  Montana Historical Society Research Center, Haynes Foundation Photograph Collection, H-3616. Used with permission from the Montana Historical Society.

The painting by Jules Tavernier, depicting the 1880-81 lava flow from Mauna Loa as it enters a stream near Hilo, Hawaii on July 20, 1881, provided courtesy of the National Park Service, Hawaii Volcanoes National Park (catalog number HAVO 806).

Painting by Henry Wood Elliott (1846-1930), Yellowstone Lake, 1871, watercolor (Phoenix Art Museum).  The view is from northern Yellowstone Lake looking to the south.  In the foreground, one can see the Annie in the northern lake and the three largest of the lake’s islands: Stevenson Island, with Frank Island and the smaller Dot

Henry Elliott’s 1871 map of Yellowstone Lake (https://hdylake.org/about/history-of-mapping-yellowstone-lake/). The headwaters of the Snake River, Upper Valley of the Yellowstone River, and Pelican River are shown.

Henry Wood Elliott during a geological expedition in 1870.  Photo by William Henry Jackson.

Seismic monitoring station ASR at Mount Adams, Washington. Scientist conducting routine maintenance.

Graphical abstract of the new research paper. The scientists collect samples from the rocks forming near hot springs and geysers. They dissolve small amounts of the rock in acid and organic carbon (created by living organisms) remains behind.

Time lapse of January 17, 2010, earthquake swarm on Madison Plateau, Yellowstone National Park.

Harrat Lunayyir basalt cinder cones and lava flows in Saudi Arabia seen from an aerial perspective. Deposits from the cinder cones cover nearby ridges and form fans at the base of the older non-volcanic ridge in the background. These well-preserved geomorphic forms indicate the relative youth of this northern part of the volcanic field.

Mount Adams, aerial view from the south. The A.G. Aiken Lava Bed lava flow is seen in the lower center of the photo, which erupted since the last glaciation.

Mount Adams from the southwest near Trout Lake, Washington. Foreground surface is a 300 year old lahar deposit that originated from high on the flank of the volcano, which deposited house-sized block.

Mount Hood, Oregon, viewed from the northwest at Lost Lake.