Journal
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
Volume 120, Issue 3-4, Pages 289-310Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0377-0273(02)00410-9
Keywords
tilt; models; dynamics; eruption; Piton de la Fournaise
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During the hour preceding the March 9, 1998, eruption of the Piton de la Fournaise volcano, the deformation network of the Observatory recorded some large deformations in the summit area. A broadband seismic station of the GEOSCOPE global network, RER, is located about 8 km away from the summit of the volcano. Signals from that station may be interpreted as tilt changes. The combination of the above two kinds of signals allows, by using a tensile fault model, to constrain the geometry as well as some characteristics (volume, propagation velocity) of the dyke that intruded the summit area during the hour preceding the beginning of eruptive activity. (C) 2002 Elsevier Science B.V. All rights reserved.
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