A trigonometric method for monitoring ground-tilt changes on composite volcanoes
By: by John W. Ewert.
Contributors: Geological Survey (U.S.)
Series: Open-file report -- 89-223.; U.S. Geological Survey open-file report -- 89-223.
Publisher: Dept. of the Interior, U.S. Geological Survey; [Books and Open-File Reports Section, distributor
Published: 1989
Place of publication: [Denver, Colo.?]
Language: eng
Format: Microform
Subjects: Volcanoes.; Volcanic activity prediction.; Tiltmeter.
Notes: Includes bibliographical references (p. 8-9).