Images

Collapsed roofs after severe ashfall from Galunggung Volcano, West Java, Indonesia.

Minor ashfall on hay field, Augustine eruption, Homer area, Alaska, 1986.

Dusting of Klyuchevskoy ash on camera bag, 2006.

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

Mount Rainier 2014 Teacher Workshop

Columbian photographer Reid Blackburn's camera, recovered from the Mount St. Helens blast zone in 1980. The film in it was too damaged to yield images.

Featured speaker from Colombia discusses lahars at Orting, Washington, event.

Village of Belalcázar along the Páez River in Colombia. Photograph taken in 2006 - note river bank vegetation and soccer pitch is restored in 12 years after 1994 lahar.

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.

U.S. and Chilean scientists prepare for a research flight during the 2008 VDAP eruption response at Chaitén.

Michael Poland, Scientist-in-Charge of the Yellowstone Volcano Observatory.

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.

An American exchange participant views the former hospital in Amero where the entire first floor was buried by lahars from Nevado del Ruiz (the second floor is visible).

American and Colombian exchange participants among the ruins in Amero, which was destroyed by an eruption of Nevado del Ruiz in 1985.

View of Mount Baker from the west. Summit area draped with aerial imagery from National Agriculture Imagery Program (NAIP) collected in September 2015. Digital topography from High-resolution digital elevation dataset for Mount Baker and vicinity, Washington, based on lidar surveys of 2015: U.S.

The USGS-Cascades Volcano Observatory opens its doors to the public on Saturday, May 12, for a one-day open house. Scientists will be on-hand from 10:00 am to 5:00 pm to share the results of their research and talk about volcano hazards. Hands-on activities and equipment demonstrations will be featured.

Glacier Peak eruption history for the past 15,000 years.

South Sister northwest flank. Right shoulder at skyline is thin sheet of mafic material from 22ka summit eruption. Red cinders in headwall cirques are layered with dipping lava flows.

InSAR (Interferometric Synthetic Aperture Radar) is a technique for mapping subtle ground deformation using radar images from Earth-orbiting satellites. With its global coverage and all-weather imaging capability, InSAR has become an increasingly important technique for studying volcanoes in remote regions such as the Aleutian Islands.

Hualālai Volcano (center) above Kīholo Bay on Hawai‘i Island's West Coast is flanked by lava flow erupted from the volcano around 1800 (right) and 1859 Mauna Loa flow (left).

Map Showing Outbreak Progression In 1956