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High precision locations of long-period events at La Fossa Crater (Vulcano Island, Italy)
Language
English
Obiettivo Specifico
1.4. TTC - Sorveglianza sismologica delle aree vulcaniche attive
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
2/52 (2009)
Publisher
Compositori
Pages (printed)
137-147
Issued date
April 2009
Abstract
Since the last eruption in 1888-90, the volcanic activity on Vulcano Island (Aeolian Archipelago, Italy) has been limited to fumarolic degassing. Fumaroles are mainly concentred at the active cone of La Fossa in the northern sector of the island and are periodically characterized by increases in the temperature as well as in the amount of both CO2 and He .Seismic background activity at Vulcano is dominated by micro-seismicity originating at shallow depth (<1-1.5 km) under La Fossa cone. This seismicity is related to geothermal system processes and comprises long period (LP) events. LPs are generally considered as the resonance of a fluid-filled volume in response to a trigger. We analyzed LP events recorded during an anomalous degassing period (August-October 2006) applying a high precision technique to define the shape of the trigger source. Absolute and high precision locations suggest that LP events recorded at Vulcano, during 2006, were produced by a shallow focal zone ca. 200 m long, 40 m wide and N30-40E oriented. Their occurrence is linked to magmatic fluid inputs that by modifying the hydrothermal system cause excitation of a fluid-filled cavity.
References
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ALPARONE S. AND GAMBINO S. (2003): High precision locations of multiplets on south-eastern flank of Mt. Etna (Italy): reconstruction of fault plan geometry. Phys. Earth Plan. Int. 135, 281-289.
AUBERT M. AND ALPARONE S. (2000): Variation d’origine sismique du flux de chaleur convectif dans La Fossa de Vulcano (Italie). C. R. Acad. Sci. Paris, Sciences de la Terre et des planètes / Earth and Planetary Sciences, 330, 603-610.
BATTAGLIA J, GOT JL, OKUBO P. (2003): Location of long-period events below Kilauea Volcano using seismic amplitudes and accurate relative relocation. J Geophys Res 108, 2553, doi:101029/2003JB002517.
CAPASSO, G., R. FAVARA, S. FRANCOFONTE, AND INGUAGGIATO S. (1999): Chemical and isotopic variations in fumarolic discharge and thermal waters at Vulcano Island (Aeolian Islands, Italy) during 1996: Evidence of resumed volcanic activity, J. Volcanol. Geotherm. Res., 88, 167– 175.
CHIODINI G, CIONI R, FALSAPERLA S, GUIDI M, MARINI L, MONTALTO A. (1992): Geochemical and seismological investigations at Vulcano (Aeolian Islands) during 1978–1989. J Geophys Res 97:11025–11032.
CHIODINI, G., M. CIONI, L. MARINI, AND PANICHI C. (1995): Origin of the fumarolic fluids of Vulcano Island, Italy, and implications for the volcanic surveillance, Bull. Volcanol., 57, 99– 110.
CHOUET B. A. (1996): Long-period volcano seismicity: its source and use in eruption forecasting. Nature 300, 309-316
CLOCCHIATTI, R., A. DEL MORO, A. GIONCADA, J. L. JORON, M. MOSBAH, L. PINARELLI, AND SBRANA A. (1994): Assessment of a shallow magmatic system: The 1888– 90 eruption, Vulcano Island, Italy, Bull. Volcanol., 56, 466– 486.
FALSAPERLA S., NERI G., VELARDITA S. (1985): Struttura della crosta superiore dell'area delle isole Eolie. Rend. Osserv. Geofis. Reggino, 29, 103-111.
FRÉCHET J. (1985): Sismogenēse et doublets sismique, thèse d’etat, Univ. de Grenoble, Grenoble, France.
FRÉMONT M. J, AND MALONE S. D. (1987): High precision relative locations of earthquake at Mount St. Helens, Washington. J Geophys. Res. 92, 10223-10236.
GABBIANELLI G., ROMAGNOLI C., ROSSI P. L. CALANCHI C., LUCCHINI F. (1991) Submarine morphology and tectonics of Vulcano (Aeolian Islands, Southeastern Tyrrhenian Sea). Acta Volcan., 1, 135-141.
GAMBINO S. (2006): High precision locations of LP events on Mt. Etna: reconstruction of the fluid-filled volume. Stud. Geoph. Geod., 50, 663-674.
GAMBINO, S., O. CAMPISI, G. FALZONE, A. FERRO, F. GUGLIELMINO, G. LAUDANI AND SARACENO B. (2007): Tilt measurements at Vulcano Island. Ann. Geophys., 50, 2, 233-247.
GODANO C. AND VILARDO G. (1991): Low-frequency events at Vulcano, Aeolian Islands, Phys. Earth Plan. Int. 69 (1-2): 119-131.
GRANIERI, D., M. L. CARAPEZZA, G. CHIODINI, R. AVINO, S. CALIRO, M. RANALDI, T. RICCI, AND TARCHINI L. (2006): Correlated increase in CO2 fumarolic content and diffuse emission from La Fossa crater (Vulcano, Italy): Evidence of volcanic unrest or increasing gas release froma stationary deep magma body?, Geophys. Res. Lett., 33, L13316,doi:10.1029/2006GL026460.
GREEN, D., NEUBERG, J. (2006): Waveform classification of volcanic low-frequency earthquake swarms and its implication at Soufrière Hills Volcano, Monserrat. J. Volcanol. Geotherm. Res., 153, 51-63.
JURKEVICS,,A. (1988): Polarization analyses of three-component array data. Bull. Seismol. Soc. Am., 78, 1575-1743.
HAASE J.S., SHEARER P.M. AND ASTER R.C. (1995): Constraints on temporal variations in velocity near Anza, California, from analysis of similar event pairs. Bull. Seismol. Soc. Amer., 85, 194−206.
KUMAGAI, H., AND CHOUET B. A. (2000): Acoustic properties of a crack containing magmatic or hydrothermal fluids, J. Geophys. Res., 105, 25,493– 25,512.
KUMAGAI H., B.A. CHOUET, AND DAWSON P. B. (2005): Source process of a long period event at Kilauea volcano, Hawaii, Geophys. J. Int., 161, 243–254.
KUMAZAWA, M., Y. IMANISHI, Y. FUKAO, M. FURUMOTO, AND YAMAMOTO A. (1990): A theory of spectral analysis based on the characteristic property of a linear dynamic system, Geophys. J. Int., 101, 613– 630.
LAHR J. C. (1989): Hypoellipse Version 2*: a computer program for determining local earthquake hypocentral parameters, magnitude, and first motion pattern. U. S. Dep. of the Survey Menlo Park, California, Open File Report 89-116
MAZZUOLI R, TORTORICI L. AND VENTURA G. (1995): Oblique Rifting in Salina, Lipari and Vulcano Islands (Aeolian Islands, Southern Italy) Terra Nova, 7, 4, 444-452.
MONTALTO A. (1994): Seismic signals in geothermal areas of active volcanism: a case study from La Fossa', Vulcano (Italy). Bull. volcanol. , 56, 3, 220-227.
NAKANO, M., H. KUMAGAI, AND CHOUET B. A. (2003): Source mechanism of long-period events at Kusatsu-Shirane Volcano, Japan, inferred from waveform inversion of the effective excitation functions, J. Volcanol. Geotherm. Res., 122, 149– 164.
NUCCIO, P. M., AND PAONITA A. (2001): Magmatic degassing of multicomponent vapors and assessment of magma depth: Application to Vulcano Island (Italy), Earth Planet. Sci. Lett., 193, 467– 481.
PAONITA, A., FAVARA R., NUCCIO M. AND SORTINO F. (2002): Genesis of fumarolic emissions as inferred by isotope mass balances: CO2 and water at Vulcano Island, Italy Geochim. Cosmochim. Acta 66, 759–772.
POUPINET G., ELLSWORTH W.L. AND FRECHET J. (1984): Monitoring velocity variation in the crust using earthquake doublets: an application to the Calaveras fault, California. J Geophys. Res. 89, 5719-5731.
ROWE, C.A., C. H. THURBER AND WHITE R. A. (2004): Relocation of volcanic event swarms at Soufriere Hills volcano, Montserrat, 1995-1996, J. Volcaniol. Geotherm. Res. 134, 199-221.
TODESCO M. (1997): Origin of fumarolic fluids at Vulcano (Italy). Insights from isotope data and numerical modeling of hydrothermal circulation. J Volcanol Geotherm Res., 79, 63–85.
VENTURA G., VILARDO G., MILANO G. AND PINO N.A. (1999): Relationships among crustal structure, volcanism and strike-slip tectonics in the Lipari-Vulcano volcanic complex (Aeolian Islands, Southern Tyrrhenian Sea, Italy). Phys. Earth Planet Int, 116, 31-52.
WOLFE C.J, OKUBO PG, SHEARER PM., 2003. Mantle fault zone beneath Kilauea Volcano, Hawaii. Science 300, 478–480
ZANON, V., M.-L. FREZZOTTI, AND PECCERILLO A. (2003): Magmatic feeding system and crustal magma accumulation beneath Vulcano Island (Italy): Evidence from CO2 fluid inclusions in quartz xenoliths, J. Geophys. Res., 108, 2298, doi:10.1029/2002JB002140.
ALPARONE S. AND GAMBINO S. (2003): High precision locations of multiplets on south-eastern flank of Mt. Etna (Italy): reconstruction of fault plan geometry. Phys. Earth Plan. Int. 135, 281-289.
AUBERT M. AND ALPARONE S. (2000): Variation d’origine sismique du flux de chaleur convectif dans La Fossa de Vulcano (Italie). C. R. Acad. Sci. Paris, Sciences de la Terre et des planètes / Earth and Planetary Sciences, 330, 603-610.
BATTAGLIA J, GOT JL, OKUBO P. (2003): Location of long-period events below Kilauea Volcano using seismic amplitudes and accurate relative relocation. J Geophys Res 108, 2553, doi:101029/2003JB002517.
CAPASSO, G., R. FAVARA, S. FRANCOFONTE, AND INGUAGGIATO S. (1999): Chemical and isotopic variations in fumarolic discharge and thermal waters at Vulcano Island (Aeolian Islands, Italy) during 1996: Evidence of resumed volcanic activity, J. Volcanol. Geotherm. Res., 88, 167– 175.
CHIODINI G, CIONI R, FALSAPERLA S, GUIDI M, MARINI L, MONTALTO A. (1992): Geochemical and seismological investigations at Vulcano (Aeolian Islands) during 1978–1989. J Geophys Res 97:11025–11032.
CHIODINI, G., M. CIONI, L. MARINI, AND PANICHI C. (1995): Origin of the fumarolic fluids of Vulcano Island, Italy, and implications for the volcanic surveillance, Bull. Volcanol., 57, 99– 110.
CHOUET B. A. (1996): Long-period volcano seismicity: its source and use in eruption forecasting. Nature 300, 309-316
CLOCCHIATTI, R., A. DEL MORO, A. GIONCADA, J. L. JORON, M. MOSBAH, L. PINARELLI, AND SBRANA A. (1994): Assessment of a shallow magmatic system: The 1888– 90 eruption, Vulcano Island, Italy, Bull. Volcanol., 56, 466– 486.
FALSAPERLA S., NERI G., VELARDITA S. (1985): Struttura della crosta superiore dell'area delle isole Eolie. Rend. Osserv. Geofis. Reggino, 29, 103-111.
FRÉCHET J. (1985): Sismogenēse et doublets sismique, thèse d’etat, Univ. de Grenoble, Grenoble, France.
FRÉMONT M. J, AND MALONE S. D. (1987): High precision relative locations of earthquake at Mount St. Helens, Washington. J Geophys. Res. 92, 10223-10236.
GABBIANELLI G., ROMAGNOLI C., ROSSI P. L. CALANCHI C., LUCCHINI F. (1991) Submarine morphology and tectonics of Vulcano (Aeolian Islands, Southeastern Tyrrhenian Sea). Acta Volcan., 1, 135-141.
GAMBINO S. (2006): High precision locations of LP events on Mt. Etna: reconstruction of the fluid-filled volume. Stud. Geoph. Geod., 50, 663-674.
GAMBINO, S., O. CAMPISI, G. FALZONE, A. FERRO, F. GUGLIELMINO, G. LAUDANI AND SARACENO B. (2007): Tilt measurements at Vulcano Island. Ann. Geophys., 50, 2, 233-247.
GODANO C. AND VILARDO G. (1991): Low-frequency events at Vulcano, Aeolian Islands, Phys. Earth Plan. Int. 69 (1-2): 119-131.
GRANIERI, D., M. L. CARAPEZZA, G. CHIODINI, R. AVINO, S. CALIRO, M. RANALDI, T. RICCI, AND TARCHINI L. (2006): Correlated increase in CO2 fumarolic content and diffuse emission from La Fossa crater (Vulcano, Italy): Evidence of volcanic unrest or increasing gas release froma stationary deep magma body?, Geophys. Res. Lett., 33, L13316,doi:10.1029/2006GL026460.
GREEN, D., NEUBERG, J. (2006): Waveform classification of volcanic low-frequency earthquake swarms and its implication at Soufrière Hills Volcano, Monserrat. J. Volcanol. Geotherm. Res., 153, 51-63.
JURKEVICS,,A. (1988): Polarization analyses of three-component array data. Bull. Seismol. Soc. Am., 78, 1575-1743.
HAASE J.S., SHEARER P.M. AND ASTER R.C. (1995): Constraints on temporal variations in velocity near Anza, California, from analysis of similar event pairs. Bull. Seismol. Soc. Amer., 85, 194−206.
KUMAGAI, H., AND CHOUET B. A. (2000): Acoustic properties of a crack containing magmatic or hydrothermal fluids, J. Geophys. Res., 105, 25,493– 25,512.
KUMAGAI H., B.A. CHOUET, AND DAWSON P. B. (2005): Source process of a long period event at Kilauea volcano, Hawaii, Geophys. J. Int., 161, 243–254.
KUMAZAWA, M., Y. IMANISHI, Y. FUKAO, M. FURUMOTO, AND YAMAMOTO A. (1990): A theory of spectral analysis based on the characteristic property of a linear dynamic system, Geophys. J. Int., 101, 613– 630.
LAHR J. C. (1989): Hypoellipse Version 2*: a computer program for determining local earthquake hypocentral parameters, magnitude, and first motion pattern. U. S. Dep. of the Survey Menlo Park, California, Open File Report 89-116
MAZZUOLI R, TORTORICI L. AND VENTURA G. (1995): Oblique Rifting in Salina, Lipari and Vulcano Islands (Aeolian Islands, Southern Italy) Terra Nova, 7, 4, 444-452.
MONTALTO A. (1994): Seismic signals in geothermal areas of active volcanism: a case study from La Fossa', Vulcano (Italy). Bull. volcanol. , 56, 3, 220-227.
NAKANO, M., H. KUMAGAI, AND CHOUET B. A. (2003): Source mechanism of long-period events at Kusatsu-Shirane Volcano, Japan, inferred from waveform inversion of the effective excitation functions, J. Volcanol. Geotherm. Res., 122, 149– 164.
NUCCIO, P. M., AND PAONITA A. (2001): Magmatic degassing of multicomponent vapors and assessment of magma depth: Application to Vulcano Island (Italy), Earth Planet. Sci. Lett., 193, 467– 481.
PAONITA, A., FAVARA R., NUCCIO M. AND SORTINO F. (2002): Genesis of fumarolic emissions as inferred by isotope mass balances: CO2 and water at Vulcano Island, Italy Geochim. Cosmochim. Acta 66, 759–772.
POUPINET G., ELLSWORTH W.L. AND FRECHET J. (1984): Monitoring velocity variation in the crust using earthquake doublets: an application to the Calaveras fault, California. J Geophys. Res. 89, 5719-5731.
ROWE, C.A., C. H. THURBER AND WHITE R. A. (2004): Relocation of volcanic event swarms at Soufriere Hills volcano, Montserrat, 1995-1996, J. Volcaniol. Geotherm. Res. 134, 199-221.
TODESCO M. (1997): Origin of fumarolic fluids at Vulcano (Italy). Insights from isotope data and numerical modeling of hydrothermal circulation. J Volcanol Geotherm Res., 79, 63–85.
VENTURA G., VILARDO G., MILANO G. AND PINO N.A. (1999): Relationships among crustal structure, volcanism and strike-slip tectonics in the Lipari-Vulcano volcanic complex (Aeolian Islands, Southern Tyrrhenian Sea, Italy). Phys. Earth Planet Int, 116, 31-52.
WOLFE C.J, OKUBO PG, SHEARER PM., 2003. Mantle fault zone beneath Kilauea Volcano, Hawaii. Science 300, 478–480
ZANON, V., M.-L. FREZZOTTI, AND PECCERILLO A. (2003): Magmatic feeding system and crustal magma accumulation beneath Vulcano Island (Italy): Evidence from CO2 fluid inclusions in quartz xenoliths, J. Geophys. Res., 108, 2298, doi:10.1029/2002JB002140.
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