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Français : Own work.. Source des données : Arrière-plan : NASA Shuttle Radar Topography Mission (SRTM3 v.2) (domaine public) Zones des risques : cette carte de l'USGS (United States Geological Survey).
The purpose of the warning system is to assist in the evacuation of residents in the river valleys around Mount Rainier, a volcano in Washington, in the event of a lahar. Pierce County works in partnership with the USGS, the Pacific Northwest Seismic Network (PNSN), Washington Military Department's Emergency Management Division, and South Sound ...
Hazard map. Mount Rainier is a stratovolcano in the Cascade Volcanic Arc that consists of lava flows, debris flows, and pyroclastic ejecta and flows. Its early volcanic deposits are estimated at more than 840,000 years old and are part of the Lily Formation (about 2.9 million to 840,000 years ago).
World’s largest lahar evacuation drill. In the wake of the Mount St. Helens eruption, the US Geological Survey set up an lahar detection system at Mount Rainier in 1998, which since 2017 has ...
Lake Tapps has been tapped. Officials had to drain the 4.5 square mile reservoir near Seattle to make essential repairs to a dam. What it revealed looked like another planet a long-forgotten ...
The Bridge for Kids is a proposed bridge across the Carbon River in Orting, Washington, about a mile upstream of where it joins the Puyallup River.It would provide an emergency evacuation route for school children to escape a future lahar flow from Mount Rainier, consisting of an up to 10-meter (33 ft) high flood of mud, rock and boulders.
State Route 123 is closed from U.S. 12 to U.S. 410 for all southbound travel, and U.S. 12 is also closed from Skate Creek Road to White Pass summit, the U.S. Forest Service said.
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