Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/4952
DC Field | Value | Language |
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dc.contributor.authorall | Greco, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Carmisciano, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.authorall | Del Negro, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Loretti, I.; ENI S.p.a. | en |
dc.contributor.authorall | Sicali, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | Stefanelli, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.date.accessioned | 2009-03-12T10:44:19Z | en |
dc.date.available | 2009-03-12T10:44:19Z | en |
dc.date.issued | 2008-02 | en |
dc.identifier.uri | http://hdl.handle.net/2122/4952 | en |
dc.description.abstract | We analyse a microgravity data set acquired from two spring LaCoste & Romberg gravity meters operated in parallel at the same site on Etna volcano (Italy) for about two months (August – September 2005). The high sampling rate acquisition (2Hz) allowed the correlation of short-lasting gravity fluctuations with seismic events. After characterizing the oscillation behavior of the meters, through the study of spectral content and the background noise level of both sequences, we recognized fluctuations in the gravity data, spanning a range of periods from 1 second to about 30 seconds dominated by components with a period of about 15 ÷ 25 seconds, during time intervals encompassing both local seismic events and large worldwide earthquakes. The data analyses demonstrate that observed earthquake-induced gravity fluctuations have some differences due to diverse spectral content of the earthquakes. When local seismic events which present high frequency content excite the meters, the correlation between the two gravity signals is poor (factor < 0.3). Vice versa, when large worldwide earthquakes occur and low frequency seismic waves dominate the ensuing seismic wavefield, the resonance frequencies of the meters are excited and they react according to more common features. In the latter case, the signals from the two instruments are strongly correlated to each other (up to 0.9). In this paper the behaviors of spring gravimeters in the frequency range of the disturbances produced by local and large worldwide earthquakes are presented and discussed. | en |
dc.language.iso | English | en |
dc.publisher.name | INGV | en |
dc.relation.ispartof | Annals of Geophysics | en |
dc.relation.ispartofseries | 1/51 (2008) | en |
dc.subject | gravimeters | en |
dc.subject | earthquakes | en |
dc.subject | seismic-induced effects | en |
dc.subject | gravity fluctuations | en |
dc.subject | resonance | en |
dc.title | Seismic-induced accelerations detected by two parallel gravity meters in continuous recording with a high sampling rate at Etna volcano | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 87-103 | en |
dc.subject.INGV | 04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring | en |
dc.relation.references | BERRINO, G. and U. RICCARDI (2004): Far-field gravity and tilt signals by large earthquakes: real or instrumental effects?, Pure, Appl. Geophys., 161, 1379-1397. BERRINO, G., G. CORRADO, R. MAGLIUOLO and U. RICCARDI (1997): Continuous record of the gravity changes at Mt. Vesuvius, Ann. Geofis., XL (5), 1019-1028. BRANCA, S., D. CARBONE and F. GRECO (2003): Intrusive mechanism of the 2002 NE-Rift eruption at Mt. Etna (Italy) inferred through continuous microgravity data and volcanological evidences, Geophys. Res. Lett., 30 (20) 2077, doi: 10.1029/2003GL018250. BUDETTA, G., D. CARBONE and F. GRECO (1999): Subsurface mass redistribution at Mt. Etna (Italy) during the 1995-96 explosive activity detected by microgravity studies, Geophys. J. Int., 138, 77-88. CARBONE, D., G. BUDETTA, F. GRECO and H. RYMER (2003): Combined discrete and continuous gravity observations at Mt. Etna, J. Volcanol. Geotherm. Res., 2581, 1-13. CARBONE, D., L. ZUCCARELLO, G. SACCOROTTI and F. GRECO (2006): Analysis of simultaneous gravity and tremor anomalies observed during the 2002-2003 Etna eruption, Earth Planet. Sci. Lett., 245, 616-629. CARBONE, D. and F. GRECO (2007): Review of microgravity observations at Mt. Etna: a powerful tool to monitor and study active volcanoes, Pure Appl. Geophys., 164, 1-22. DAUBECHIES, I. (1992): Ten Lectures on Wavelets, CBMSNSF 61 Series in Applied Mathematics (SIAM, Philadelphia). DAVIS, P.M. (1981): Gravity and tilt earth tides measured on an active volcano, Mt Etna, Sicily, J. Volcanol. Geotherm. Res., 11, 213-223. DE MEYER, F., B. DUCARME and A. ELWAHABI (1995): Continuous gravity observations at Mt. Etna (Sicily), in IUGG XXI General Assembly, July 2-14, Boulder, Colorado. FERRUCCI, F. and D. PATANÈ (1993): Seismic activity accompanying the outbreak of the 1991-1993 eruption of Mt. Etna, J. Volcanol. Geotherm. Res., 57, 125-135. IMANISHI, Y., T. SATO, T. HIGASHI, W. SUN and S. OKUBO (2004): A network of superconducting gravimeters detects submicrogal coseismic gravity changes, Science, 306. HINDERER, J. and D. CROSSLEY (2000): Time variations and inferences on the Earth’s structure and dynamics, Surv. Geophys., 21, 1-45. NAWA, K., N. SUDA, Y. FUKAO, T. SATO, Y. AOYAMA and K. SHIBUYA (1998): Incessant excitation of the Earth’s free oscillations, Earth Planets Space, 50, 3-8. PATANÉ, D., O. COCINA, S. FALSAPERLA, E. PRIVITERA and S. SPAMPANATO (2004): Mt. Etna volcano: a seismological framework, in Etna Volcano Laboratory, edited by A. BONACCORSO, S. CALVARI, M. COLTELLI, C. DEL NEGRO and S. FALSAPERLA, Am. Geophys. Un. (Geophysical Monograph series), 147-165. RICHTER, C.F. (1958): Elementary Seismology (Freeman and Company San Francisco), pp. 768. TORGE, W. (1989): Gravimetry (Walter de Gruyter, Berlin- New York). WENZEL, H.G. (1996): The nanogal software: Earth tide data processing package ETERNA 3.30, Bull. Inf. Marees Terrestres, 124, 9425-9439. | en |
dc.description.obiettivoSpecifico | 2.6. TTC - Laboratorio di gravimetria, magnetismo ed elettromagnetismo in aree attive | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Greco, F. | en |
dc.contributor.author | Carmisciano, C. | en |
dc.contributor.author | Del Negro, C. | en |
dc.contributor.author | Loretti, I. | en |
dc.contributor.author | Sicali, A. | en |
dc.contributor.author | Stefanelli, P. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | ENI S.p.a. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | ENI | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.orcid | 0000-0002-0265-5073 | - |
crisitem.author.orcid | 0000-0001-7357-2147 | - |
crisitem.author.orcid | 0000-0001-5734-9025 | - |
crisitem.author.orcid | 0000-0001-6203-1548 | - |
crisitem.author.orcid | 0000-0002-2388-2662 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press Annals of Geophysics |
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greco2008.pdf | 9.76 MB | Adobe PDF | View/Open |
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