Cascades Volcano Observatory, United States

Established in 1980, the David A. Johnston U.S. Geological Survey’s (USGS) Cascades Volcano Observatory (CVO) monitors volcanic activity in Washington, Oregon, and Idaho.

USGS CVO

Stations

Instrumentation

Recording Medium

ink on paper

Data Availability

Approximately 35,000 paper drum and ink records from 1980 to 1991. These include recordings of dozens of volcanic eruptions and significant earthquake sequences at Mount St. Helens. Many of the records have been scanned.

Contact

For more information about this collection, please contact: < blank >

References

Personal communication J. Dewey 2018.