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Long term surface deformation of Soufrière Hills volcano, Montserrat from GPS geodesy : inferences from simple elastic inverse models.

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Long term surface deformation of Soufrière Hills volcano, Montserrat from GPS geodesy : inferences from simple elastic inverse models.

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dc.contributor.author Mattioli, Glen.
dc.contributor.author Herd, Richard A.
dc.contributor.author Strutt, Michael H.
dc.contributor.author Ryan, Graham.
dc.contributor.author Widiwijayanti, Christina.
dc.contributor.author Voight, Barry.
dc.date.accessioned 2012-10-17T04:18:04Z
dc.date.available 2012-10-17T04:18:04Z
dc.date.copyright 2010
dc.date.issued 2012-10-17
dc.identifier.citation Mattioli, G. S., Herd, R. A., Strutt, M. H., Ryan, G., Widiwijayanti, C., & Voight, B. (2010). Long term surface deformation of Soufrière Hills Volcano, Montserrat from GPS geodesy: inferences from simple elastic inverse models. Geophysical Research Letters, 37.
dc.identifier.issn 0094-8276
dc.identifier.uri http://hdl.handle.net/10220/8789
dc.description.abstract Campaign and continuous GPS geodetic measurements on Soufrière Hills Volcano, Montserrat are reported from 1995 to 2009, spanning three dome growth and repose episodes. Uniform elastic half-space inversions were used to examine how crustal pressure sources evolved by inverting subsets of all available 3D site data for any given episode using a single Mogi-source. Changes in network topology were also examined. The average best-fitting single Mogi model yields X = 0.3 ± 0.5 km, Y = 0.8 ± 0.4 km, and a depth of Z = 10.4 ± 2.1 km (1-σ, Z positive down), relative to the center of the model domain. The mean Mogi depth for effusive (deflation) versus repose (inflation) is different and significant at >90% confidence, yielding Z = 11.4 ± 2.0 km and 9.3 ± 1.6 km, respectively. A vertical, prolate ellipsoid improves the fit at >95% confidence over a single Mogi source or stacked, two-source model for the 2003–2005 repose and 2005–2007 dome growth episodes.
dc.language.iso en
dc.relation.ispartofseries Geophysical research letters
dc.rights © 2010 American Geophysical Union. This paper was published in Geophysical Research Letters and is made available as an electronic reprint (preprint) with permission of American Geophysical Union. The paper can be found at the following official URL: [http://dx.doi.org/10.1029/2009GL042268].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
dc.subject DRNTU::Science::Geology::Volcanoes and earthquakes.
dc.title Long term surface deformation of Soufrière Hills volcano, Montserrat from GPS geodesy : inferences from simple elastic inverse models.
dc.type Journal Article
dc.identifier.doi http://dx.doi.org/10.1029/2009GL042268
dc.description.version Published version

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