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Bayesian source inference of the 1993–1997 deformation atMount Etna (Italy) by numerical solutions
Author(s)
Language
English
Obiettivo Specifico
3.6. Fisica del vulcanismo
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/177(2009)
Publisher
Blackwell
Pages (printed)
806-814
Issued date
2009
Abstract
Deformation data collected at Mount Etna from 1993 to 1997 show that the inflation of
the volcano edifice is accompanied by instability of the eastern flank. We propose a 3-D finite element model including topography and lateral variations of elastic constants. Source parameters of the inflating source are constrained by a direct search followed by an appraisal
stage of the sampled solutions. The instability of the eastern flank is addressed using a kinematic approach, consisting of a rigid-body translation over a prescribed area. The aim is
to evaluate how source parameters are affected by sliding of the eastern flank. When sliding is accounted for, the inferred source location shifts ∼1 km SE and its strength decreases by ∼20 per cent.
the volcano edifice is accompanied by instability of the eastern flank. We propose a 3-D finite element model including topography and lateral variations of elastic constants. Source parameters of the inflating source are constrained by a direct search followed by an appraisal
stage of the sampled solutions. The instability of the eastern flank is addressed using a kinematic approach, consisting of a rigid-body translation over a prescribed area. The aim is
to evaluate how source parameters are affected by sliding of the eastern flank. When sliding is accounted for, the inferred source location shifts ∼1 km SE and its strength decreases by ∼20 per cent.
References
Berardino, P., Fornaro, G., Lanari, R. & Sansosti, E., 2002. A new algorithm
for surface deformation monitoring based on small baseline differential
SAR interferograms, IEEE Trans. Geosci. Remote Sens., 40, 2375–2383.
Bonaccorso, A., Cianetti, S., Giunchi, C., Trasatti, E., Bonafede, M.
& Boschi, E., 2005. Analytical and 3D numerical modeling of
Mount Etna (Italy) volcano inflation, Geophys. J. Int., 163, 852–862,
doi:10.1111/j.1365-246X.2005.027777.x.
Bonforte, A. & Puglisi, G., 2003. Magma uprising and flank dynamics on
Mount Etna volcano, studied using GPS data (1994–1995), J. geophys.
Res., 108, 2153–2163, doi:10.1029/2002JB001845.
Bonforte, A., Bonaccorso, A., Guglielmino, F., Palano, M. & Puglisi,
G., 2008. Feeding system and magma storage beneath Mount Etna as Berardino, P., Fornaro, G., Lanari, R. & Sansosti, E., 2002. A new algorithm
for surface deformation monitoring based on small baseline differential
SAR interferograms, IEEE Trans. Geosci. Remote Sens., 40, 2375–2383.
Bonaccorso, A., Cianetti, S., Giunchi, C., Trasatti, E., Bonafede, M.
& Boschi, E., 2005. Analytical and 3D numerical modeling of
Mount Etna (Italy) volcano inflation, Geophys. J. Int., 163, 852–862,
doi:10.1111/j.1365-246X.2005.027777.x.
Bonforte, A. & Puglisi, G., 2003. Magma uprising and flank dynamics on
Mount Etna volcano, studied using GPS data (1994–1995), J. geophys.
Res., 108, 2153–2163, doi:10.1029/2002JB001845.
Bonforte, A., Bonaccorso, A., Guglielmino, F., Palano, M. & Puglisi,
G., 2008. Feeding system and magma storage beneath Mount Etna as Berardino, P., Fornaro, G., Lanari, R. & Sansosti, E., 2002. A new algorithm
for surface deformation monitoring based on small baseline differential
SAR interferograms, IEEE Trans. Geosci. Remote Sens., 40, 2375–2383.
Bonaccorso, A., Cianetti, S., Giunchi, C., Trasatti, E., Bonafede, M.
& Boschi, E., 2005. Analytical and 3D numerical modeling of
Mount Etna (Italy) volcano inflation, Geophys. J. Int., 163, 852–862,
doi:10.1111/j.1365-246X.2005.027777.x.
Bonforte, A. & Puglisi, G., 2003. Magma uprising and flank dynamics on
Mount Etna volcano, studied using GPS data (1994–1995), J. geophys.
Res., 108, 2153–2163, doi:10.1029/2002JB001845.
Bonforte, A., Bonaccorso, A., Guglielmino, F., Palano, M. & Puglisi,
G., 2008. Feeding system and magma storage beneath Mount Etna as revealed by recent inflation/deflation cycles, J. geophys. Res., 113,
B05406, doi:10.1029/2007JB005334.
Borgia, A., Ferrari, L. & Pasquar`e, G., 1992. Importance of gravitational
spreading in the tectonic and volcanic evolution of Mount Etna, Nature,
357, 231–234.
Casu, F., Manzo, M. & Lanari, R., 2006. A quantitative assessment
of the SBAS algorithm performance for surface deformation retrieval
from DInSAR data, Remote Sens. Environ., 102, 195–210,
doi:10.1016/j.rse.2006.01.023.
Cayol, V. & F. Cornet, H., 1998. Effects of topography on the interpretation
of the deformation field of prominent volcanoes—application to Etna,
Geophys. Res. Lett., 25, 1979–1982.
Chiarabba, C., Amato, A., Boschi, E. & Barberi, F., 2000. Recent seismicity
and tomographic modelling of the Mount Etna plumbing system, J.
geophys. Res., 105, 10 923–10 938.
Chiarabba, C., De Gori, P. & Patan`e, D., 2004. The Mount Etna plumbing
system: the contribution of seismic tomography, Mount Etna Volcano
Laboratory, Vol. 143, p. 384, eds Bonaccorso, A., Calvari, S., Coltelli, M.,
Negro, C.D. & Falsaperla, S., American Geophysical UnionMonography
Series.
Davis, P.M., 1986. Surface deformation due to inflation of an arbitrarily
oriented triaxial ellipsoidal cavity in an elastic half-space, with referece
to Kilauea volcano, Hawaii, J. geophys. Res., 91, 7429–7438.
Fisher, R.A., 1922. On the interpretation of χ2 from contingency tables, and
the calculation of P, J. Roy. Stat. Soc., 85(1), 87–94.
Fukushima, Y., Cayol, V. & Durand, P., 2005. Finding realistic dike models
from the interferometric synthetic aperture radar data: the February
2000 eruption at Piton de la Fournaise, J. geophys. Res., 110, B03206,
doi:10.1029/2004JB003268.
Lanari, R., Lundgren, P. & Sansosti, E., 1998. Dynamic deformation of Etna
volcano observed by satellite radar interferometry, Geophys. Res. Lett.,
25, 1541–1544.
Lo Giudice, E. & Ras`a, R., 1992. Very shallow earthquakes and brittle
deformation in active volcanic areas: the etnean region as an example,
Tectonophysics, 202, 257–268.
Lundgren, P., Berardino, P., Coltelli, M., Fornaro, G., Lanari, R., Puglisi,
G., Santosti, E. & Tesauro, M., 2003. Coupled magma chamber inflation
and sector collapse slip observed with synthetic aperture radar interferometry
on Mount Etna volcano, J. geophys. Res., 108, B52247,
doi:10.1029/2001JB000657.
Lundgren, P., Casu, F., Manzo, M., Pepe, A., Berardino, P., Sansosti, E. &
Lanari, R., 2004. Gravity and magma induced spreading of Mount Etna
volcano revealed by satellite radar interferometry, Geophys. Res. Lett.,
31, L23613, doi:10.1029/2003GL018736.
Manconi, A., Walter, T.R. & Amelung, F., 2007. Effects of mechanical
layering on volcano deformation, Geophys. J. Int., 170, 952–968,
doi:10.1111/j.1365-246X.2007.03449.x.
Mc Tigue, D.F., 1987. Elastic stress deformation near a finite spherical magma body: resolution of the point source paradox, J. geophys. Res., 92,
12 931–12 940.
Mogi, K., 1958. Relation between the eruptions of various volcanoes and
deformations of the ground surfaces around them, Bull. Earth. Res. Inst.,
36, 99–134.
Monaco, C., Catalano, S., Cocina, O., De Guidi, G., Ferlito, C., Gresta,
S., Musumeci, C. & Tortorici, L., 2005. Tectonic control on the
eruptive dynamics at Mount Etna volcano (Sicily) during the 2001
and 2002–2003 eruptions, J. Volc. Geotherm. Res., 144, 211–233,
doi:10.1016/j.jvolgeores.2004.11.024.
Neri, M., Acocella, V. & Behncke, B., 2004. The role of the Pernicana
Fault system in the spreading of Mount Etna (Italy) during the 2002-03
eruption, Bull. Volcanol., 66, 417–430.
Palano, M., Puglisi, G. & Gresta, S., 2008. Ground deformation patterns
at Mount Etna from 1993 to 2000 from joint use of In-
SAR and GPS techniques, J. Volc. Geotherm. Res., 169, 99–120,
doi:10.1016/j.jvolgeores.2007.08.014.
Patan`e, D., De Gori, P., Chiarabba, C. & Bonaccorso, A., 2003. Magma
ascent and the pressurization of Mount Etna’s volcanic system, Science,
299, 2061–2063, doi:10.1126/science.1080653.
Puglisi, G.&Bonforte, A., 2004. Dynamics of Mount Etna Volcano inferred
from static and kinematic GPS measurements, J. geophys. Res., 109,
B11404, doi:10.1029/2003JB002878.
Rust, D. & Neri, M., 1996. The boundaries of large-scale collapse on the
flanks of Mount Etna, Sicily, in Volcano instability on the Earth and other
planets,Vol. 110, pp. 193–208, edsMcGiure,W.J., Jones, A.P.&Neuberg,
J., Geological Society, London, Special Publications.
Rust, D., Behncke, B., Neri, M. & Ciocanel, A., 2005. Nested zones of
instability in the Mount Etna volcanic edifice, Italy, J. Volc. Geotherm.
Res., 144, 137–153, doi:10.1016/j.jvolgeores.2004.11.021.
Sambridge, M., 1999a. Geophysical inversion with a Neighborhood Algorithm.
Part I. Searching a parameter space, Geophys. J. Int., 138, 479–494.
Sambridge, M., 1999b. Geophysical inversion with a Neighborhood Algorithm.
Part II. Appraising the ensemble, Geophys. J. Int., 138, 727–746.
Trasatti, E., Giunchi, C. & Bonafede, M., 2005. Structural and rheological
constraints on source depth and overpressure estimates at the Campi
Flegrei Caldera, Italy, J. Volc. Geotherm. Res., 144, 105–118.
Trasatti, E., Giunchi, C. & Piana Agostinetti, N., 2008. Numerical inversion
of deformation caused by pressure sources: application to
Mount Etna, Italy, Geophys. J. Int., 172, 873–884, doi:10.1111/j.1365-
246X.2007.03677.x.
Walter, T.R., Acocella, V., Neri, M. & Amelung, F., 2005. Feedback process
between magmatic events and flank movement at Mount Etna
(Italy) during the 2002–2003 eruption, J. geophys. Res., 110, B10205,
doi:10.1029/2005JB003688.
Yang, X., Davis, P.M. & Dieterich, J.H., 1988. Deformation from inflation
of a dipping finite prolate spheroid in an elastic halfspace as a model for
volcanic stressing, J. geophys. Res., 93, 4249–4257.
for surface deformation monitoring based on small baseline differential
SAR interferograms, IEEE Trans. Geosci. Remote Sens., 40, 2375–2383.
Bonaccorso, A., Cianetti, S., Giunchi, C., Trasatti, E., Bonafede, M.
& Boschi, E., 2005. Analytical and 3D numerical modeling of
Mount Etna (Italy) volcano inflation, Geophys. J. Int., 163, 852–862,
doi:10.1111/j.1365-246X.2005.027777.x.
Bonforte, A. & Puglisi, G., 2003. Magma uprising and flank dynamics on
Mount Etna volcano, studied using GPS data (1994–1995), J. geophys.
Res., 108, 2153–2163, doi:10.1029/2002JB001845.
Bonforte, A., Bonaccorso, A., Guglielmino, F., Palano, M. & Puglisi,
G., 2008. Feeding system and magma storage beneath Mount Etna as Berardino, P., Fornaro, G., Lanari, R. & Sansosti, E., 2002. A new algorithm
for surface deformation monitoring based on small baseline differential
SAR interferograms, IEEE Trans. Geosci. Remote Sens., 40, 2375–2383.
Bonaccorso, A., Cianetti, S., Giunchi, C., Trasatti, E., Bonafede, M.
& Boschi, E., 2005. Analytical and 3D numerical modeling of
Mount Etna (Italy) volcano inflation, Geophys. J. Int., 163, 852–862,
doi:10.1111/j.1365-246X.2005.027777.x.
Bonforte, A. & Puglisi, G., 2003. Magma uprising and flank dynamics on
Mount Etna volcano, studied using GPS data (1994–1995), J. geophys.
Res., 108, 2153–2163, doi:10.1029/2002JB001845.
Bonforte, A., Bonaccorso, A., Guglielmino, F., Palano, M. & Puglisi,
G., 2008. Feeding system and magma storage beneath Mount Etna as Berardino, P., Fornaro, G., Lanari, R. & Sansosti, E., 2002. A new algorithm
for surface deformation monitoring based on small baseline differential
SAR interferograms, IEEE Trans. Geosci. Remote Sens., 40, 2375–2383.
Bonaccorso, A., Cianetti, S., Giunchi, C., Trasatti, E., Bonafede, M.
& Boschi, E., 2005. Analytical and 3D numerical modeling of
Mount Etna (Italy) volcano inflation, Geophys. J. Int., 163, 852–862,
doi:10.1111/j.1365-246X.2005.027777.x.
Bonforte, A. & Puglisi, G., 2003. Magma uprising and flank dynamics on
Mount Etna volcano, studied using GPS data (1994–1995), J. geophys.
Res., 108, 2153–2163, doi:10.1029/2002JB001845.
Bonforte, A., Bonaccorso, A., Guglielmino, F., Palano, M. & Puglisi,
G., 2008. Feeding system and magma storage beneath Mount Etna as revealed by recent inflation/deflation cycles, J. geophys. Res., 113,
B05406, doi:10.1029/2007JB005334.
Borgia, A., Ferrari, L. & Pasquar`e, G., 1992. Importance of gravitational
spreading in the tectonic and volcanic evolution of Mount Etna, Nature,
357, 231–234.
Casu, F., Manzo, M. & Lanari, R., 2006. A quantitative assessment
of the SBAS algorithm performance for surface deformation retrieval
from DInSAR data, Remote Sens. Environ., 102, 195–210,
doi:10.1016/j.rse.2006.01.023.
Cayol, V. & F. Cornet, H., 1998. Effects of topography on the interpretation
of the deformation field of prominent volcanoes—application to Etna,
Geophys. Res. Lett., 25, 1979–1982.
Chiarabba, C., Amato, A., Boschi, E. & Barberi, F., 2000. Recent seismicity
and tomographic modelling of the Mount Etna plumbing system, J.
geophys. Res., 105, 10 923–10 938.
Chiarabba, C., De Gori, P. & Patan`e, D., 2004. The Mount Etna plumbing
system: the contribution of seismic tomography, Mount Etna Volcano
Laboratory, Vol. 143, p. 384, eds Bonaccorso, A., Calvari, S., Coltelli, M.,
Negro, C.D. & Falsaperla, S., American Geophysical UnionMonography
Series.
Davis, P.M., 1986. Surface deformation due to inflation of an arbitrarily
oriented triaxial ellipsoidal cavity in an elastic half-space, with referece
to Kilauea volcano, Hawaii, J. geophys. Res., 91, 7429–7438.
Fisher, R.A., 1922. On the interpretation of χ2 from contingency tables, and
the calculation of P, J. Roy. Stat. Soc., 85(1), 87–94.
Fukushima, Y., Cayol, V. & Durand, P., 2005. Finding realistic dike models
from the interferometric synthetic aperture radar data: the February
2000 eruption at Piton de la Fournaise, J. geophys. Res., 110, B03206,
doi:10.1029/2004JB003268.
Lanari, R., Lundgren, P. & Sansosti, E., 1998. Dynamic deformation of Etna
volcano observed by satellite radar interferometry, Geophys. Res. Lett.,
25, 1541–1544.
Lo Giudice, E. & Ras`a, R., 1992. Very shallow earthquakes and brittle
deformation in active volcanic areas: the etnean region as an example,
Tectonophysics, 202, 257–268.
Lundgren, P., Berardino, P., Coltelli, M., Fornaro, G., Lanari, R., Puglisi,
G., Santosti, E. & Tesauro, M., 2003. Coupled magma chamber inflation
and sector collapse slip observed with synthetic aperture radar interferometry
on Mount Etna volcano, J. geophys. Res., 108, B52247,
doi:10.1029/2001JB000657.
Lundgren, P., Casu, F., Manzo, M., Pepe, A., Berardino, P., Sansosti, E. &
Lanari, R., 2004. Gravity and magma induced spreading of Mount Etna
volcano revealed by satellite radar interferometry, Geophys. Res. Lett.,
31, L23613, doi:10.1029/2003GL018736.
Manconi, A., Walter, T.R. & Amelung, F., 2007. Effects of mechanical
layering on volcano deformation, Geophys. J. Int., 170, 952–968,
doi:10.1111/j.1365-246X.2007.03449.x.
Mc Tigue, D.F., 1987. Elastic stress deformation near a finite spherical magma body: resolution of the point source paradox, J. geophys. Res., 92,
12 931–12 940.
Mogi, K., 1958. Relation between the eruptions of various volcanoes and
deformations of the ground surfaces around them, Bull. Earth. Res. Inst.,
36, 99–134.
Monaco, C., Catalano, S., Cocina, O., De Guidi, G., Ferlito, C., Gresta,
S., Musumeci, C. & Tortorici, L., 2005. Tectonic control on the
eruptive dynamics at Mount Etna volcano (Sicily) during the 2001
and 2002–2003 eruptions, J. Volc. Geotherm. Res., 144, 211–233,
doi:10.1016/j.jvolgeores.2004.11.024.
Neri, M., Acocella, V. & Behncke, B., 2004. The role of the Pernicana
Fault system in the spreading of Mount Etna (Italy) during the 2002-03
eruption, Bull. Volcanol., 66, 417–430.
Palano, M., Puglisi, G. & Gresta, S., 2008. Ground deformation patterns
at Mount Etna from 1993 to 2000 from joint use of In-
SAR and GPS techniques, J. Volc. Geotherm. Res., 169, 99–120,
doi:10.1016/j.jvolgeores.2007.08.014.
Patan`e, D., De Gori, P., Chiarabba, C. & Bonaccorso, A., 2003. Magma
ascent and the pressurization of Mount Etna’s volcanic system, Science,
299, 2061–2063, doi:10.1126/science.1080653.
Puglisi, G.&Bonforte, A., 2004. Dynamics of Mount Etna Volcano inferred
from static and kinematic GPS measurements, J. geophys. Res., 109,
B11404, doi:10.1029/2003JB002878.
Rust, D. & Neri, M., 1996. The boundaries of large-scale collapse on the
flanks of Mount Etna, Sicily, in Volcano instability on the Earth and other
planets,Vol. 110, pp. 193–208, edsMcGiure,W.J., Jones, A.P.&Neuberg,
J., Geological Society, London, Special Publications.
Rust, D., Behncke, B., Neri, M. & Ciocanel, A., 2005. Nested zones of
instability in the Mount Etna volcanic edifice, Italy, J. Volc. Geotherm.
Res., 144, 137–153, doi:10.1016/j.jvolgeores.2004.11.021.
Sambridge, M., 1999a. Geophysical inversion with a Neighborhood Algorithm.
Part I. Searching a parameter space, Geophys. J. Int., 138, 479–494.
Sambridge, M., 1999b. Geophysical inversion with a Neighborhood Algorithm.
Part II. Appraising the ensemble, Geophys. J. Int., 138, 727–746.
Trasatti, E., Giunchi, C. & Bonafede, M., 2005. Structural and rheological
constraints on source depth and overpressure estimates at the Campi
Flegrei Caldera, Italy, J. Volc. Geotherm. Res., 144, 105–118.
Trasatti, E., Giunchi, C. & Piana Agostinetti, N., 2008. Numerical inversion
of deformation caused by pressure sources: application to
Mount Etna, Italy, Geophys. J. Int., 172, 873–884, doi:10.1111/j.1365-
246X.2007.03677.x.
Walter, T.R., Acocella, V., Neri, M. & Amelung, F., 2005. Feedback process
between magmatic events and flank movement at Mount Etna
(Italy) during the 2002–2003 eruption, J. geophys. Res., 110, B10205,
doi:10.1029/2005JB003688.
Yang, X., Davis, P.M. & Dieterich, J.H., 1988. Deformation from inflation
of a dipping finite prolate spheroid in an elastic halfspace as a model for
volcanic stressing, J. geophys. Res., 93, 4249–4257.
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