USGS/Cascades Volcano Observatory, Vancouver, Washington

Volcano and Hydrologic Monitoring

Volcano monitoring involves a variety of measurements and observations designed to detect changes at the surface of a volcano that reflect increasing pressure and stresses caused by the movement of magma, or molten rock, within or beneath it. An eruption occurs when magma rises from its source or from a storage reservoir and finally reaches the Earth's surface. As it rises, the magma fractures overlying rocks, which causes earthquakes, and parts of the volcano deform as magma approaching the surface makes room for itself. -- Excerpt from: Brantley and Topinka, 1984

Background and Information
- Volcano Monitoring Overview -- Introduction ... Taking a Volcano's Pulse ... Scientists' Challenge and Opportunity ...
"Real-Time" Monitoring
- Mount St. Helens Hydrologic "Real-Time" Monitoring -- Water Levels -- Current, 3Day, 7Day, 30Day, Plots, Spirit Lake, Castle Lake, etc.
- Pacific Northwest Seismic Network (PNSN) -- Information and Maps, includes links to current volcano seismicity via the University of Washington's Geophysic's Programs Pacific Northwest Seismic Network Website
- "Real-Time" Monitoring Projects -- CVO and Non-CVO "Real-Time" Volcano Monitoring Projects
- VolcanoCams Around the World -- Links to "live" or "almost live" views of volcanoes, including the U.S. Forest Service's Mount St. Helens National Volcanic Monument's VolcanoCam
Volcano Monitoring Techniques
Volcanoes and Monitoring Menus
Maps, Graphics, and Images
- Maps and Graphics - Volcano and Hydrologic Monitoring
- CVO Photo Archives - Monitoring Images -- includes AFM ... Deformation ... Gas Emissions ... GPS ... Hydrologic ... Landslide ... Photographic ... Seismic ...
- USGS Scientists - 2004 to Current -- USGS scientists "at work" during the current eruption of Mount St. Helens
Items of Interest
- CVO Volcano Networks, 1980 to 2002 -- Volcanoes, types of monitoring, and years monitored
- Cascade Range Volcano Monitoring - Menu -- Monitoring the Cascade Range Volcanoes, including Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, Mount Adams, Mount Hood, etc.
- Maps and Graphics - Volcano and Hydrologic Monitoring
- Monitoring Techniques - Menu
- Monitoring Volcanoes - Overview -- Introduction ... Taking a Volcano's Pulse ... Scientists' Challenge and Opportunity ...
- Monitoring Volcanoes: Techniques and Strategies Used by the Staff of the Cascades Volcano Observatory, 1980-1990 -- Ewert and Swanson, (eds.), 1992, USGS Bulletin 1966
- Mount St. Helens Hydrologic "Real-Time" Monitoring - Menu -- Current, 3Day, 7Day, 30Day, Plots, Spirit Lake, Castle Lake, etc.
- National Volcano Early Warning System -- Ewert et.al., 2005, USGS Open-File Report 2005-1164
- National Volcano Early Warning System (NVEWS) -- Ewert, et.al., 2006, USGS Open-File Report 2006-3142
- Pacific Northwest Seismic Network (PNSN) -- Information and Maps, includes links to current volcano seismicity via the University of Washington's Geophysic's Programs Pacific Northwest Seismic Network Website
- CVO Photo Archives - Monitoring Images
- CVO Photo Archives - USGS Scientists - 2004 to Current -- USGS scientists "at work" during the current eruption of Mount St. Helens
- Projects and Research at the Cascades Volcano Observatory - Menu -- includes current list of CVO projects, plus listing of online projects, project reports, etc.
- "Real-Time" Monitoring Projects - Menu -- CVO and Related "Real-Time" Volcano Monitoring Projects
- REPORT: The National Volcano Early Warning System (NVEWS) -- Ewert, et.al., 2006, USGS Open-File Report 2006-3142
- Techniques - Menu
- Volcanic Emissions and Global Change Project - CVO Project Menu -- general information about the Project, including the monitoring of Cascade Range Volcanoes
- Volcanic studies at the U.S. Geological Survey's David A. Johnston Cascades Volcano Observatory, Vancouver, Washington
  -- Brantley and Topinka, 1984, Earthquake Information Bulletin, v.16, no.2
- VolcanoCams Around the World -- Links to "live" or "almost live" views of volcanoes, including the U. S. Forest Service's Mount St. Helens National Volcanic Monument's VolcanoCam
- Volcano Deformation Project - CVO Project Menu -- general information about the Volcano Deformation Project, including the monitoring of Cascade Range Volcanoes
- Volcano Monitoring Overview -- Introduction ... Taking a Volcano's Pulse ... Scientists' Challenge and Opportunity ...
Useful Links
- Hydrologic Monitoring of Volcanoes -- Link courtesy Volcano Hazards Program Website
- Monitoring Volcanic Gases: the driving force of eruptions -- Link courtesy Volcano Hazards Program Website
- Monitoring Volcano Ground Deformation -- Link courtesy Volcano Hazards Program Website
- Monitoring Volcano Seismicity -- Link courtesy Volcano Hazards Program Website
- Remote Sensing for Monitoring Volcanoes -- Link courtesy Volcano Hazards Program Website
Other Menus of Interest
- Volcano and Hydrologic Hazards Menu -- CVO Menu
- Volcano Hazards Assessment Reports and Maps Menu -- CVO Menu
- Glossary of Volcano and Hydrologic Hazards, Features, and Terminology -- CVO Menu

URL for CVO HomePage is: <http://vulcan.wr.usgs.gov/home.html>
URL for this page is: <http://vulcan.wr.usgs.gov/Monitoring/framework.html>
If you have questions or comments please contact: <GS-CVO-WEB@usgs.gov>
12/04/07, Lyn Topinka