Images

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

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).

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

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.

Table of ash fall severities based on accumulated thickness.

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

Geologic Hazards at Volcanoes. To download the full poster click here.

Mount Rainier Teacher Workshop Participants 2011

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.

Lava-flow hazard zone map, Hawai‘i Island

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

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

The station is a lahar monitoring station with a broadband seismometer and video camera. Data from the station use radio telemetry to send real time information to the Instituto Geofisico of Ecuador.

Pyroclastic flow cartoon depicting the flow moving down the slope of a volcano through a valley.

LOS = Line of Sight

Example of an event-tree schematic used when forecasting the probable scenarios that may play out in the event of volcanic unrest or eruption. Scenarios are updated as events unfold.

Emergency response planning exercise for a volcanic event with Washington State and local government officials.

Drill records have found traces of previously formed shorelines (strandlines) depressed below the current sea level - further evidence of subsidence due to the added weight of the volcano.

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

Relative explosiveness and resulting height of eruption columns typically associated with different styles of eruption

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