View source for Cascades Volcano Observatory

{{Organization
|OrganizationName=Cascades Volcano Observatory (CVO)
|OrganizationType=Research and Development Agencies (Sub-organization)
|Mission=To monitor and research volcanic activity in the Cascade Range to enhance public safety by providing timely warnings and reducing the impact of volcanic hazards. CVO focuses on understanding volcanic processes, assessing hazards, and disseminating information to the public and emergency managers.
|ParentOrganization=United States Geological Survey (USGS), Volcano Hazards Program
|OrganizationExecutive=Scientist-in-Charge
|Services=Volcano monitoring; Seismic data analysis; Gas emissions tracking; Hazard assessment; Public education
|HeadquartersLocation=45.61114, -122.49621
|HeadquartersAddress=1300 SE Cardinal Court, Building 10, Suite 100, Vancouver, WA 98683, United States
|Website=https://www.usgs.gov/observatories/cvo
}}
{{Short description|Research center in Washington, United States}}

{{Infobox government agency
|agency_name   = United States Geological Survey<br/>Cascades Volcano Observatory
|seal          = 
|seal_width    =
|seal_caption  =
|image = Cascades Volcano Observatory on Open Day 2005 (USGS) cropped.JPG
|image_caption = Front of the main building of the David A. Johnston Cascades Volcano Observatory
|headquarters = [[Vancouver, Washington]], USA
|formed        = 1980
|chief1_name = Dr. Jon Major<ref name="CONNECT">[https://www.usgs.gov/observatories/cvo/connect Cascades Volcano Observatory, Connect (Contacts)], Retrieved Jan. 19, 2023.</ref>
|chief1_position = Scientist-in-Charge (USGS)
|website       = https://www.usgs.gov/observatories/cvo
}}
The '''David A. Johnston Cascades Volcano Observatory''' ('''CVO''') is a [[volcano observatory]] in the US that monitors volcanoes in the northern [[Cascade Range]]. It was established in the summer of 1980, after the eruption of [[Mount St. Helens]].<ref name="MONITOR">[https://books.google.com/books?id=vzKE9HDdQRUC&dq=cvo+vancouver+1980&pg=PA1 Google Books, ''Monitoring Volcanoes: Techniques and Strategies Used by the Staff of the Cascades Volcano Observatory, 1980-90'', Editors - John W. Ewert and Donald A. Swanson, United States Geological Survey, United States Government Printing Office, 1992, page 1], Retrieved May 11, 2018.</ref> The observatory is named for [[United States Geological Survey]] (USGS) volcanologist [[David A. Johnston]], who was killed by the [[1980 eruption of Mount St. Helens]].<ref>[https://volcanoes.usgs.gov/observatories/cvo/david_johnston.html The Legacy of David A. Johnston]</ref>  The observatory's current territory covers [[Oregon]], [[Washington (state)|Washington]], and [[Idaho]]. The Cascade Range's extent includes northern [[California]], and Cascade volcanoes in that state, such as [[Mount Shasta]] and [[Lassen Peak]], previously fell under the CVO's jurisdiction. However, these volcanoes now fall under the jurisdiction of the [[California Volcano Observatory]] (CalVO), formed in February 2012 and based in [[Menlo Park, California]], which monitors and researches volcanic activity throughout California and [[Nevada]].<ref>{{cite magazine|last=Klemetti|first=Erik|title=Meet the USGS's Newest Volcano Observatory: CalVO|url=https://www.wired.com/wiredscience/2012/02/meet-the-usgss-newest-volcano-observatory-calvo/|magazine=Eruptions|publisher=Wired.com|accessdate=11 February 2012|date=10 February 2012}}</ref>

The Cascades Volcano Observatory is part of the USGS, a scientific agency of the [[United States government]].<ref>{{Cite web |url=http://www.wovo.org/1201.html |title=WOVO.org: World Organization of Volcano Observatories |access-date=2009-12-10 |archive-date=2020-10-29 |archive-url=https://web.archive.org/web/20201029050539/http://wovo.org/1201.html |url-status=dead }}</ref> It is located in [[Vancouver, Washington]] in the [[Portland, Oregon]] metropolitan area.

==Monitored volcanoes==

This list shows volcanoes currently monitored by the Cascades Volcano Observatory, which range in order of highest to lowest risk assessment.

According to USGS risk assessment of volcanoes located in the northern Cascades region, the following volcanoes were ranked "very high threat potential".<ref name="CVO RISK">[https://www.usgs.gov/observatories/cvo Cascades Volcano Observatory, Main Page -- Risk Assessment of Volcanoes], Retrieved Dec. 29. 2021.</ref>
*'''[[Crater Lake]]''' in southwestern [[Oregon]] near [[Klamath Falls, Oregon|Klamath Falls]]
*'''[[Glacier Peak]]''' in northern [[Washington (state)|Washington]]
*'''[[Mount Baker]]''' in northern Washington
*'''[[Mount Hood]]''' in northwestern Oregon near [[Portland, Oregon|Portland]]
*'''[[Mount Rainier]]''' in central Washington near [[Tacoma, Washington|Tacoma]]
*'''[[Mount St. Helens]]''' in southwestern Washington near [[Vancouver, Washington|Vancouver]]
*'''[[Newberry Volcano]]''' in central Oregon near [[Bend, Oregon|Bend]]
*'''[[Three Sisters (Oregon)|Three Sisters]]''' in west central Oregon near Bend

The following volcanoes were ranked "high threat potential":<ref name="CVO RISK"/>
*'''[[Mount Adams (Washington)|Mount Adams]]''' in southwestern Washington

The following volcanoes were ranked "moderate threat potential":<ref name="CVO RISK"/>
*'''[[Mount Bachelor]]''' in west central Oregon near Bend

The following volcanoes were ranked "Low to Very Low Threat Potential":<ref name="CVO RISK"/>
*'''[[Belknap Crater]]''' in central Oregon
*'''[[Black Butte Crater Lava Field]]''' in southern [[Idaho]] near [[Shoshone, Idaho|Shoshone]]
*'''[[Blue Lake Crater]]''' in northern Oregon
*'''[[Cinnamon Butte]]''' in southwestern Oregon near Crater Lake
*'''[[Craters of the Moon National Monument and Preserve|Craters of the Moon Volcanic Field]]''' in southeastern Idaho near [[Pocatello, Idaho|Pocatello]]
*'''[[Davis Lake volcanic field|Davis Lake Volcanic Field]]''' in central Oregon
*'''[[Devils Garden volcanic field|Devils Garden Volcanic Field]]''' in central Oregon
*'''[[Diamond Craters]]''' in southeastern Oregon near [[Burns, Oregon|Burns]]
*'''[[Hell's Half Acre Lava Field]]''' in southeastern Idaho near [[Idaho Falls, Idaho|Idaho Falls]]
*'''[[Indian Heaven]]''' in southwestern Washington near Mount St. Helens
*'''[[Jordan Craters]]''' in southeastern Oregon
*'''[[Mount Jefferson (Oregon)|Mount Jefferson]]''' in northwestern Oregon
*'''[[Sand Mountain Volcanic Field]]''' in west central Oregon near Mount Jefferson
*'''[[Wapi Lava Field]]''' in southeastern Idaho near Pocatello
*'''[[West Crater]]''' in southwestern Washington near Mount St. Helens

There are other volcanoes in the northern Cascades region that have not been assessed one of these risk levels which warrant monitoring. Volcanoes that have not erupted during the [[Holocene]] period were not included. USGS has noted, though less probable, that it is still possible for volcanoes to erupt on longer intervals than mentioned.<ref name="CVO RISK"/>

==References==
{{Reflist}}

==External links==
{{Commons category|Cascades Volcano Observatory}}
* {{Official website|http://volcanoes.usgs.gov/observatories/cvo/}}

{{Authority control}}

{{Coord|45|36|39|N|122|29|48|W|display=title}}

[[Category:Earth sciences]]
[[Category:Government agencies established in 1980]]
[[Category:Buildings and structures in Vancouver, Washington]]
[[Category:Volcano observatories]]
[[Category:Volcanoes of the United States]]
[[Category:United States Geological Survey]]
[[Category:Buildings and structures in Washington (state)]]


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