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Authors: Burlini, L.* 
Vinciguerra, S.* 
Di Toro, G.* 
De Natale, G.* 
Burg, J. P.* 
Title: Seismicity preceding volcanic eruptions: new experimental insight
Issue Date: Feb-2007
Series/Report no.: 2/35 (2007)
DOI: 10.1130/G23195A
Keywords: rock physics, volcanoes seismology
Subject Classification04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology 
Abstract: A variety of seismic signals representing different physical mechanisms precedes volcanic eruptions. The most meaningful signals are high- and low-frequency earthquakes and volcanic tremor that have tentatively been related to fracturing and magma transport in the volcanic edifice. We provide experimental support for this association by reproducing magma migration while recording seismic signals. Opening fractures emit high-frequency acoustic events, while the switch to low frequency and harmonic tremor accompanies the flow of the melt in the fractures. Discerning between these seismic signals in nature can signifi cantly refine volcanic hazard evaluation.
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