Warning system for volcanoes
Article first published online: 3 JUN 2011
©1969. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 50, Issue 7, page 477, July 1969
How to Cite
1969), Warning system for volcanoes, Eos Trans. AGU, 50(7), 477–477, doi:10.1029/EO050i007p00477-03.(
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
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An early warning system that will predict volcanic eruptions weeks before they occur has been developed by Geotech. Seismometers and event counters are used to detect even very slight movements of the magma. Changes in the frequency of these microearthquakes can be recorded and analyzed, providing an early indication of increasing volcanic activity. The Geotech system includes 6 to 10 event counters and seismometers, a portable survey kit consisting of seismometers and magnetic tape recorders, and a base station of seismometers, amplifiers, tape recorder, visual recorder, and timing, power, and analysis systems.