USGS/Cascades Volcano Observatory, Vancouver, Washington

Three Sisters, Oregon
Volcano and Hydrologic Monitoring

Current Activity
- Information Statement, March 24, 2004
- Link to: Current Seismicity -- Link courtesy University of Washington Pacific Northwest Seismic Network
- Link to: Continuous GPS monitoring at the Three Sisters Volcano in central Oregon -- Link courtesy USGS Menlo Park
- Cascade Range Current Activity Updates -- includes Three Sisters
Current Activity Archives
Three Sisters Monitoring
- CVO Volcano Networks - Table -- volcanoes and years monitored, types of monitoring, includes South Sister
- Earthquakes and Seismicity - Menu
- Geodetic Leveling as a Tool for Studying Restless Volcanoes -- Dzurisin, 1992, IN: Ewert and Swanson (eds.), 1992, USGS Bulletin 1966
- Measurements of slope distances and zenith angles at Newberry and South Sister Volcanoes, Oregon, 1985-1986 -- Iwatsubo, Topinka, and Swanson, 1988, USGS Open-File Report 88-377
- InSAR Monitoring - West Uplift - Menu
- Pacific Northwest Seismograph Network
- Precise level lines at Crater Lake, Newberry Crater, and South Sister, Oregon -- Yamashita and Doukas, 1987, USGS Open-File Report 87-293
- South Sister Volcano: A Network of Short Traverses to Determine Tilt Changes -- Excerpt from: Dzurisin, 1992, Geodetic Leveling as a Tool for Studying Restless Volcanoes: IN: USGS Bulletin 1966
- Volcano Deformation Project - Menu
Maps and Graphics
- InSAR Monitoring, Three Sisters - Image -- May 2001
- Pacific Northwest Seismograph Network - Oregon and Southern Washington - Map -- [Map,30K,InlineGIF] -- Modified from: University of Washington Geophysics Program, 1999
- Pacific Northwest Seismograph Network - Washington and Oregon - Map -- [Map,40K,InlineGIF] -- Modified from: University of Washington Geophysics Program, 1998
Publications and Reports
- Publications and Reports - Three Sisters -- includes Monitoring
Useful Links
- Useful Links - Oregon -- includes Monitoring
Other Menus of Interest
- Three Sisters Volcanoes Menu -- CVO Menu
- Three Sisters Earthquakes and Seismicity Menu -- CVO Menu
- Three Sisters Hazards Menu -- CVO Menu
- Volcano and Hydrologic Monitoring Menu -- CVO Menu

URL for CVO HomePage is: <http://vulcan.wr.usgs.gov/home.html>
URL for this page is: <http://vulcan.wr.usgs.gov/Volcanoes/Sisters/Monitoring/framework.html>
If you have questions or comments please contact: <GS-CVO-WEB@usgs.gov>
05/21/07, Lyn Topinka

Three Sisters, Oregon Volcano and Hydrologic Monitoring

Three Sisters, Oregon
Volcano and Hydrologic Monitoring