Spatiotemporal variations in vertical gravity gradients at the Campi Flegrei caldera (Italy): A case for source multiplicity during unrest?

Geophysical Journal International

Volumn 167, Issue 3, 2006, Pages 1089-1096

  Gottsmann, Joachim ^a,b   Camacho, Antonio G ^c   Tiampo, Kristy F ^d   Fernández, José ^c  

^a INSTITUTE OF EARTH SCIENCES JAUME ALMERA   (Spain)

^b UNIVERSITY OF BRISTOL   (United Kingdom)

^c CSIC UCM Instituto de Astronomia y Geodesia IAG   (Spain)

^d UNIVERSITY OF WESTERN ONTARIO   (Canada)

Author keywords

Caldera; Campi Flegrei; Geodesy; Gravity; Hydrothermal system; Magma

Indexed keywords

CALDERA; GENETIC ALGORITHM; GRAVITY ANOMALY; MODEL; SPATIOTEMPORAL ANALYSIS; TIME SERIES ANALYSIS;

CAMPANIA [ITALY]; CAMPI FLEGREI; EURASIA; EUROPE; ITALY; NAPOLI [CAMPANIA]; SOUTHERN EUROPE;

EID: 33845296107     PISSN: 0956540X     EISSN: 1365246X     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2006.03157.x     Document Type: Article

References (42)

1. Battaglia, M., Segall, P., Murray, J., Cervelli, P. & Langbein, J., 2003a. The mechanics of unrest at Long Valley caldera, California: 1. Modeling the geometry of the source using GPS, leveling and two-color EDM data, J. Volc. Geother. Res., 127(3-4), 195-217.
2. Battaglia, M., Segall, P. & Roberts, C., 2003b. The mechanics of unrest at Long Valley caldera, California. 2. Constraining the nature of the source using geodetic and micro-gravity data, J. Volc. Geotherm. Res., 127(3-4), 219-245.
3. Berrino, G., 1994. Gravity changes induced by height-mass variations at the Campi Flegrei caldera, J. Volc. Geotherm. Res., 61(3 -4), 293-309.
4. Berrino, G., Corrado, G., Luongo, G. & Toro, B., 1984. Ground deformation and gravity changes accompanying the 1982 Pozzuoli uplift, Bulletin of Volcanology, 47(2), 188-200.
5. Berrino, G., Rymer, H., Brown, G.C. & Corrado, G., 1992. Gravity-height correlations for unrest at calderas, J. Volc. Geotherm. Res., 53, 11-26.
6. Bonafede, M. & Mazzanti, M., 1998. Modelling gravity variations consistent with ground deformation in the Campi Flegrei caldera (Italy), J. Volc. Geotherm. Res., 81(1-2), 137-157.
7. Charco, M., Fernandez, J., Luzon, F. & Rundle, J., 2006. On the relative importance of self-gravitation and elasticity in modeling volcanic deformation and gravity changes, J. geophys. Res., 111, B03404, doi:.
8. Chelini, W. & Sbrana, A., 1987. Subsurface geology, in Phlegrean Fields, Vol. 114, pp. 94-102, eds Rosi, M. & Sbrana, A. Quaderni de la Ricerca Scientifica.
9. Davis, R. & Selvadurai, A., 1996. Elasticity and Geomechanics, Cambridge University Press, Cambridge.
10. de Zeeuw-van Dalfsen, E., Rymer, H., Sigmundsson, F. & Sturkell, E., 2005. Net gravity decrease at Askja volcano, Iceland: Constraints on processes responsible for continuous caldera deflation, 1988-2003, J. Volc. Geotherm. Res., 139(3-4), 227-239.
11. Di Vito, M., Lirer, L., Mastrolorenzo, G. & Rolandi, G., 1987. The 1538 Monte Nuovo eruption (Campi Flegrei, Italy), Bulletin of Volcanology, 49, 608-645.
12. Di Vito, M., Isaia, R., Orsi, G., Southon, G., de Vita, S., D'Antonio, M., Pappalardo, L. & Piochia, M., 1999. Volcanism and deformation since 12,000 years at the Campi Flegrei caldera (Italy)), J. Volc. Geotherm. Res., 91, 221-246.
13. Dvorak, J.J. & Berrino, G., 1991. Recent ground movements and seismic activity in Campi Flegrei, southern Italy: Episodic growth of a resurgent dome, J. geophys. Res., 96(B), 2309-2323.
14. Eggers, A., 1987. Residual gravity changes and eruption magnitudes, J. Volc. Geotherm. Res., 33, 201-216.
15. Fernandez, J. & Rundle, J., 1994a. Gravity changes and deformation due to a magmatic intrusion in a two-layered crustal model, J. geophys. Res., 99, 2737-2746.
16. Fernandez, J. & Rundle, J., 1994b. FORTRAN program to compute displacement, potential and gravity changes due to a magma intrusion in a multilayered Earth model, Computers and Geosciences, 20, 461-510.
17. Fernandez, J., Rundle, J.B., Granell, R.D.R. & Yu, T.-T., 1997. Programs to compute deformation due to a magma intrusion in elastic-gravitational layered Earth models, Computers and Geosciences, 23(3), 231-249.
18. Fernandez, J., Tiampo, K.F. & Rundle, J.B., 2001. Viscoelastic displacement and gravity changes due to point magmatic intrusions in a gravitational layered solid Earth, Geophys. J. Int., 146, 155-170.
19. Fernandez, J., Tiampo, K.F., Rundle, J.B. & Jentzsch, G., 2005. On the interpretation of vertical gravity gradients produced by magmatic intrusions, J. Geodyn., 39(5), 475-492.
20. Furuya, M., Okubo, S., Sun, W., Tanaka, Y., Oikawa, J., Watanabe, H. & Maekawa, T., 2003. Spatio-temporal gravity changes at Miyakejima Volcano, Japan: Caldera collapse, explosive eruptions and magma movement, J. geophys. Res., 108 (2219), doi:.
21. Gaeta, F.S., Peluso, F., Arienzo, I., Castagnolo, D., De Natale, G., Milano, G., Albanese, C. & Mita, D.G., 2003. A physical appraisal of a new aspect of bradyseism: The miniuplifts, J. geophys. Res., 108 (B8, 2363), doi:.
22. Goldberg, D., 1989. Genetic Algorithms in Search, Optimization, and Machine Learning, Addison Wesley, Reading.
23. Gottsmann, J. & Rymer, H., 2002. Deflation during caldera unrest: constraints on subsurface processes and eruption prediction from gravity-height data, Bulletin of Volcanology, 64, 338-348.
24. Gottsmann, J., Berrino, G., Rymer, H. & Williams-Jones, G., 2003. Hazard assessment during caldera unrest at the Campi Flegrei, Italy: A contribution from gravity-height gradients, Earth planet. Sci. Letts., 211(3-4), 295-309.
25. Gottsmann, J., Folch, A. & Rymer, H., 2005. Unrest at Campi Flegrei: a contribution to the magmatic vs. hydrothermal debate from inverse and finite element modeling, J. geophys. Res., 111, B07203, doi:.
26. Gottsmann, J., Rymer, H. & Berrino, G., 2006. Caldera unrest at the Campi Flegrei: A critical evaluation of source parameters from geodetic data inversion, J. Volc. Geotherm. Res., 150, 132-145.
27. Holland, J., 1975. Adaptation in Natural and Artificial Systems, MIT Press, Cambridge.
28. Lundgren, P., Usai, S., Sansosti, E., Lanari, R., Tesauro, M., Fornaro, G. & Berardino, P., 2001. Modeling surface deformation observed with synthetic aperture radar interferometry at Campi Flegrei caldera, J. geophys. Res., 106 (B9), 19355-19366.
29. Michalewicz, Z., 1992. Genetic Algorithms + Data Structures =Evolution Programs, Springer-Verlag, New York.
30. Mogi, K., 1958. Relations between eruptions of various volcanoes and the deformations of the ground surfaces around them, Bulletin of the Earthquake Research Institute, 36, 99-134.
31. Orsi, G., de Vita, S. & Di Vito, M., 1996. The restless, resurgent Campi Flegrei nested caldera (Italy): Constraints on its evolution and configuration, J. Volc. Geotherm. Res., 74, 179-214.
32. Parascondola, A., 1947. I fenomeni bradisismici del Sarapeo di Pozzuoli, Genovese, Naples.
33. Rosi, M., Sbrana, A. & Principe, C., 1983. The Phlegraean Fields; structural evolution, volcanic history and eruptive mechanisms, J. Volc. Geotherm. Res., 17 (1-4), 273-288.
34. Rundle, J.B., 1978. Gravity changes and the Palmdale uplift, Geophys. Res. Letts., 5(1), 41-44.
35. Rundle, J.B., 1980. Static elastic-gravitational deformation of a layered half space by point couple sources, J. geophys. Res., 85, 5355-5363.
36. Rundle, J.B., 1982. Deformation, gravity, and potential changes due to volcanic loading in the crust, J. geophys. Res., 87(B13), 10729-10744.
37. Rymer, H. & Williams-Jones, G., 2000. Volcanic eruption prediction: Magma chamber physics from gravity and deformation measurements, Geophys. Res. Letts., 27(16), 2389-2392.
38. Saunders, S.J., 2004. The possible contribution of circumferential fault intrusion to caldera resurgence, Bulletin of Volcanology, 67(1), 57-71.
39. Tiampo, K., Fernandez, J., Jentzsch, G., Charco, M. & Rundle, J., 2004a. Inverting for the parameters of a volcanic source using a genetic algorithm and a model for magmatic intrusion in elastic-gravitational layered Earth models, Computers and Geosciences, 30(9), 985-1001.
40. Tiampo, K., Fernandez, J., Jentzsch, G., Charco, M. & Rundle, J., 2004b. New results at mayon, philippines, from a joint inversion of gravity and deformation measurements, Pure and Applied Geophysics, 161, 1433-1452.
41. Tiampo, K.F., Rundle, J.B., Fernandez, J. & Langbein, J.O., 2000. Spherical and ellipsoidal volcanic sources at Long Valley caldera, California, using a genetic algorithm inversion technique, J. Volc. Geotherm. Res., 102(3-4), 189-206.
42. Walsh, J.B. & Rice, J.R., 1979. Local changes in gravity resulting from deformation, J. geophys. Res., 84, 156-170.