Seismogenic lavas and explosive eruption forecasting

Y. Lavallée (), P. G. Meredith, D. B. Dingwell, K.-U. Hess, J. Wassermann, B. Cordonnier, A. Gerik and J. H. Kruhl
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Y. Lavallée: Ludwig-Maximilians University
P. G. Meredith: University College London, Gower Street, London WC1E 6BT, UK
D. B. Dingwell: Ludwig-Maximilians University
K.-U. Hess: Ludwig-Maximilians University
J. Wassermann: Ludwig-Maximilians University
B. Cordonnier: Ludwig-Maximilians University
A. Gerik: Ludwig-Maximilians University
J. H. Kruhl: Faculty of Civil and Geodetic Engineering, Technische Universität München

Nature, 2008, vol. 453, issue 7194, 507-510

Abstract: Seismogenic lavas: Explosive collapse Volcanoes typically undergo cycles of dome growth and — sometimes very explosive — collapse. The nature of the ductile-to-brittle transition in the highly crystalline lavas involved in volcanic dome-building eruptions may hold the key to an accurate description of dome growth and stability. Lavallée et al. have performed rheological experiments combined with continuous micro-seismic monitoring to reveal that such dome lavas are seismogenic and that the character of the seismicity changes markedly across the ductile-to-brittle transition until complete brittle failure occurs at high strain rates. The authors conclude that monitoring such magma seismicity may lead to improved forecasting for some volcanic eruptions.

Date: 2008
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DOI: 10.1038/nature06980

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