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June 19, 2020

Lahar Detection System Developments at Mount Rainier

The video describes USGS efforts to improve lahar (mudflow) monitoring at Mount Rainier, an ice-clad volcano in Washington State with potential for dangerous volcanic mudflows. The presentation was given to colleagues in the US and in Ecuador by Andy Lockhart. Andy is a geophysicist with the the USGS/USAID Volcano Disaster Assistance Program, and he has worked to reduce

Depth of earthquakes at Mount Rainier 2010 to 2019
December 19, 2019

Mount Rainier: Earthquakes in the Hydrothermal System

Earthquakes at Mount Rainier from 2010 to 2019. As shown in the graphic, fluids from the magmatic system beneath the volcano rise through existing cracks and weaknesses in the crust. Along with rainwater and ice/snow melt, these fluids combine to create a hydrothermal system within the volcano. When pressurized fluids move along faults in the shallow subsurface, they

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Seismic swarm at Mount Rainier September 11-13, 2017....
September 20, 2017

Seismic swarm at Mount Rainier Sep. 11-13, 2017.

Top: Map view of well recorded historical seismicity at Mount Rainier since 2007 (gray circles) with seismicity since September 11 plotted as filled red circles. Location of seismic stations indicated by arrows. Bottom: Cross-sectional view looking north shows earthquake depths. Black outline is a west-east elevation profile of Mount Rainier. Circles are sized with respect

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Mount Rainier, as viewed from Panhandle Gap....
August 31, 2017

Mount Rainier, as viewed from Panhandle Gap.

The east side of Mount Rainier, as viewed from Panhandle Gap.

Large snow-covered, cone shaped mountain in background, looming over urban area in foreground
January 18, 2014

Mount Rainier looms over the Puyallup Valley, Washington

Mount Rainier volcano looms over Puyallup Valley, near Orting, Washington.

Mount Rainier is the backdrop for Eatonville, Washington....
July 26, 2013

Mount Rainier is the backdrop for Eatonville, WA.

Mount Rainier is the backdrop for Eatonville, Washington.

Mount Rainier rises above Tacoma, Washington and boat harbor, which...
December 31, 2011

Mount Rainier rises above Tacoma, WA and boat harbor, which may be ...

Mount Rainier rises above Tacoma, Washington and boat harbor, which may be impacted during the next eruption of the volcano.

Mount Rainier as seen from Paradise Ridge, Washington....
August 15, 2004

Mount Rainier as seen from Paradise Ridge, WA.

Mount Rainier as seen from Paradise Ridge, Washington.

LaharZ model (left) of the possible lahar hazards from the Carbon a...

LaharZ model of the possible lahar hazards from the Carbon and Puya...

LaharZ model (left) of the possible lahar hazards from the Carbon and Puyallup River drainages from Mount Rainier. The town of Orting, Washington (photograph) sits in the lahar hazard zone.