Tilt networks of Mount Shasta and Lassen Peak, California

Open-File Report 82-670
By: , and 

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Abstract

In response to recent eruptions at Mount St. Helens and with support from the USGS Volcanic Hazards Program, the Cascades Volcano Observatory (CVO) has initiated a program to monitor all potentially-active volcanoes of the Cascade Range. As part of that effort, we installed tilt networks and obtained baseline measurements at Mount Shasta and Lassen Peak, California during July 1981. At the same time, baseline electronic distance measurements (EDM) were made and fumarole surveys were conducted by other crews from CVO. Annual surveys are planned initially, with subsequent visits as conditions warrant. These geodetic and geochemical measurements supplement a program of continuous seismic monitoring of Cascade volcanoes by the USGS Office of Earthquake Studies in cooperation with local universities. Other tilt networks were established at Mount Baker in 1975 and at Mount St. Helens in 1981. EDM networks were established at Mount Baker in 1975, Mount St. Helens in 1980, and Crater Lake in 1981. Additional tilt and/or EDM networks are planned for Mount Rainier, Mount Hood, Glacier Peak, Three Sisters, and Crater Lake as funds permit.
Publication type Report
Publication Subtype USGS Numbered Series
Title Tilt networks of Mount Shasta and Lassen Peak, California
Series title Open-File Report
Series number 82-670
DOI 10.3133/ofr82670
Edition WRI/OFR
Year Published 1982
Language ENGLISH
Publisher U.S. Geological Survey,
Description 42 p., ill., maps ;28 cm.
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