Modeling of Stress Changes at Mayon Volcano,Philippines |
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| Authors: | K F Tiampo J Fernández T Hayes G Jentzsch |
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| Institution: | (1) Dept. of Earth Sciences, University of Western Ontario, London, Ontario, Canada;(2) Instituto de Astronomía y Geodesia (CSIC-UCM). Fac. C. Matemáticas, Ciudad Universitaria, Plaza de Ciencias, 3, 28040 Madrid, Spain;(3) Institute for Geosciences, FSU Jena, Burgweg 11, D-07749 Jena, Germany |
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| Abstract: | In this paper, we analyze the stress change associated with the inverted volcanic source models at Mayon volcano, Philippines,
where there are gravity changes without significant deformation after the 1993 eruption. We detail the applicable data and
the associated inversion techniques and models prior to calculating the appropriate stress changes. It is determined that
the stress change associated with the central magmatic source produces compressional stress changes at a secondary source
to the northwest, prompting a change in the local water storage in the underlying fractured rock. |
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| Keywords: | Mayon volcano genetic algorithm elastic-gravitational layered earth model volcanic source gravity displacement |
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