HR: 1340h
AN: S33B-1104    [Abstracts]
TI: Vibroseismic Monitoring of Active Volcanos
AU: * Glinsky, B
EM: gbm@opg.sscc.ru
AF: Institute of Computational Mathematics and Mathematical Geophysics SB RAS, pr.akad.Lavrentieva, 6, Novosibirsk, 630090 Russian Federation
AU: Fatyanov, A
EM: fat@nmsf.sscc.ru
AF: Institute of Computational Mathematics and Mathematical Geophysics SB RAS, pr.akad.Lavrentieva, 6, Novosibirsk, 630090 Russian Federation
AB: The paper considers theory, methods and experiments aimed at creation of a monitoring system of active volcanos with the use of powerful vibroseismic sources. We propose a concept of creation of a system for studying the geometry of magma chambers, deep faults in the neighborhood of volcanos, dynamics of eruption processes using the methods of vibroseismic sounding, the latter based on powerful controlled sources with the force, acting on the ground. The results of calculation of a seismic field for a medium, which is elliptic inclusion info a homogeneous half-space simulating a magma region, are presented. In this case, a volcanic medium is approximated with the help of a number of, rectangular plates. Special attention is being given to development of method of vibroseismic monitoring of living volcanos, which, in our opinion, will help in measuring the rates of magma elevation in channels and in predicting the time of eruption of a volcano in question in combination with other geophysical, geochemical and geological methods.
DE: 7223 Seismic hazard assessment and prediction
DE: 7280 Volcano seismology (8419)
DE: 7294 Instruments and techniques
DE: 7200 SEISMOLOGY
SC: Seismology [S]
MN: 2004 AGU Fall Meeting