Cascades Volcano Observatory

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Date published: October 19, 2020

Trump Administration Officials Tour New Mt. Rainier Lahar Detection Stations

TACOMA, Wash. — Deputy Secretary of the Interior Katharine MacGregor, U.S. Geological Survey Director Jim Reilly, and Counselor to the Secretary Margaret Everson, Exercising the Delegated Authority of the Director of the National Park Service, today visited Mount Rainier National Park to announce the successful permitting and ongoing installation of five new lahar monitoring stations.

Date published: October 16, 2020

Media Advisory: Exclusive Interview Opportunities with Interior Officials to Learn about New Mt. Rainier Lahar Detection Stations

TACOMA, Wash. — What is a lahar and why are they a threat to those who live below Mount Rainier? Journalists are invited to learn about the  threat potential posed by lahars from Mount Rainier to local communities and how  new  USGS lahar monitoring stations will integrate into emergency preparedness and response.    

Date published: October 16, 2020

New station enhances Mount Rainier’s lahar detection network

New station expands scientists' capabilities to detect unrest and provide rapid notification of hazards to emergency officials and the public.

Date published: October 5, 2020

Opportunity for public comment on proposal to expand the lahar detection system within Mount Rainier National Park

Public input will be accepted from October 5-30, 2020 on a proposal to expand the lahar detection system inside Mount Rainier National Park.  

Date published: September 1, 2020

Newberry gets new names for some of its many geologic features.

Evidence for early Holocene human occupation in the Newberry caldera provides the context for USGS geologist's work with the Klamath Tribes and the Deschutes National Forest to add tribal names describing geologic features that help tell the story of its many volcanic eruptions.   

Date published: August 7, 2020

Low lake water, dry conditions in Newberry caldera the cause of increased sulfur smells?

Field crews set up temporary gas monitoring sensors and sample hot springs and seeps, soils, and areas where sulfur smells were reported. Preliminary data show little change from previous years and monitoring effort will continue.

Date published: May 14, 2020

Mount St. Helens’ 1980 Eruption Changed the Future of Volcanology

If scientists armed with today's monitoring tools and knowledge could step back in time to the two months before May 18, 1980, they would have been able to better forecast the forthcoming devastating eruption.

Date published: December 19, 2019

Earthquakes occur in Mount Rainier's hydrothermal system.

While the seismicity represents a temporary uptick in activity, Mount Rainier remains at normal, background levels of activity.

Date published: November 21, 2019

Field guides provide history and context for your next field trip to Mount St. Helens

Exposures in valleys surrounding Mount St. Helens reveal records of diverse geologic processes including debris avalanche, lahar, huge water wave on a nearby lake, pyroclastic density currents (surge and flow), tephra fall, lava flow, growth of domes, and past glaciation. 

Date published: September 18, 2019

USGS to Install New Volcano Early Detection and Monitoring Stations at Mount Hood--Improving Early Detection of Unrest at this Active Volcano

New sensor network will help safeguard lives and property, and because of the relatively small footprint, there will be very little disturbance to the environment and wildlife in the area.