Dynamic dyke propagation deduced from tilt variations preceding the March 9, 1998, eruption of the Piton de la Fournaise volcano - Archive ouverte HAL Access content directly
Journal Articles Journal of Volcanology and Geothermal Research Year : 2003

Dynamic dyke propagation deduced from tilt variations preceding the March 9, 1998, eruption of the Piton de la Fournaise volcano

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Abstract

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.

Dates and versions

insu-03598424 , version 1 (05-03-2022)

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Jean Battaglia, Patrick Bachèlery. Dynamic dyke propagation deduced from tilt variations preceding the March 9, 1998, eruption of the Piton de la Fournaise volcano. Journal of Volcanology and Geothermal Research, 2003, 120, pp.289-310. ⟨10.1016/S0377-0273(02)00410-9⟩. ⟨insu-03598424⟩
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