Images

Three images of crop damage, ash plume and cleanup for the homepage

Map showing global ash and aviation encounters

Bariloche sand filters

During the cleanup after the 18 August 1992 eruption of Mt Spurr volcano, Alaska. The population of Anchorage used mostly wet methods to clean up the ash, creating a peak water demand which resulted in water shortages and loss of pressure in some parts of the city due to bottlenecks in the distribution system.

Ashfall will cause accelerated wear and tear on sewage pump impellers (metal pitting and thinning).

Streamflow measurement and water sampling at Paradise Creek are part of the regular measurements taken during hydrothermal monitoring campaigns at Mount Rainier, Washington.

Mount Rainier 2018 Teacher Workshop

Graph shows thickness of ash (and larger-sized particles within 20-40 km) that fell to the ground downwind of Mount St. Helens during the eruption on May 18, 1980. The volcano ejected a minimum of 1.1 km3 of uncompacted tephra, which is equivalent to 0.20-0.25 km3 of magma or solid rock.

Sideromelane and tachylite shards collected 12 km from source at Mount Etna, 2002. The width of view is 1 mm

Table of ash fall severities based on accumulated thickness.

Heavy ashfall (20-30 mm) from Tungurahua, Ecuador, 2006.

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.