Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/8010
DC Field | Value | Language |
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dc.contributor.authorall | De Lauro, E.; Dept. Ingegneria Industriale, Università degli Studi di Salerno, | en |
dc.contributor.authorall | Falanga, M.; Dept. Ingegneria Industriale, Università degli Studi di Salerno, | en |
dc.contributor.authorall | Petrosino, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.date.accessioned | 2012-07-31T12:15:37Z | en |
dc.date.available | 2012-07-31T12:15:37Z | en |
dc.date.issued | 2012-07-07 | en |
dc.identifier.uri | http://hdl.handle.net/2122/8010 | en |
dc.description.abstract | The source properties of the Long-Period events that occurred at Campi Flegrei Caldera (Italy) during the 2004–2006 ground uplift episode are investigated by analyzing the temporal release of seismic energy, amplitude distribution and inter-event occurrence time. Moreover, an entropy-based decomposition method is applied to identify the simpler waveforms thought to be representative of the source mechanism of Long-Period events. On the basis of the outcomes, we propose that the main part of these events is the result of a source process triggered by a mechanism of fluid charge/discharge, which causes pressure drop in a main branch of a dentritic network of the hydrothermal system. In this model, the rate of the Poissonian process (about 15 min), which drives the occurrence of the Long-Period events, provides the average recharge time of the system up to the critical condition. A partial shunting of the fluid flow away from the main conduit activates the ”resonance” of a second branch, spatially separated from the first one. This is a process that occurs whenever the fluid pressure exceeds a critical value and produces less energetic Long-Period events. The mechanism of pressure variation in the two conduits generates signals with preferred amplitude scales, described by a bi-lognormal distribution. From a dynamical point of view, Long-Period events result well described by a low-dimensional dynamical system. Finally, the time pattern of the energy release and its correlation with the diurnal solid earth tide suggest that the whole mechanism of fluid charge/discharge is likely modulated by tidal stress variation. | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier Science Limited | en |
dc.relation.ispartof | Physics of the Earth and Planetary Interiors | en |
dc.relation.ispartofseries | /206-207 (2012) | en |
dc.subject | Lp sources | en |
dc.subject | Poissonian occurrence | en |
dc.subject | Tidal modulation | en |
dc.title | Study on the Long-Period source mechanism at Campi Flegrei (Italy) | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 16-30 | en |
dc.identifier.URL | http://www.sciencedirect.com/science/article/pii/S0031920112001100 | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology | en |
dc.identifier.doi | 10.1016/j.pepi.2012.06.006, | en |
dc.description.obiettivoSpecifico | 3.6. Fisica del vulcanismo | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | partially_open | en |
dc.relation.issn | 0031-9201 | en |
dc.relation.eissn | 1872-7395 | en |
dc.contributor.author | De Lauro, E. | en |
dc.contributor.author | Falanga, M. | en |
dc.contributor.author | Petrosino, S. | en |
dc.contributor.department | Dept. Ingegneria Industriale, Università degli Studi di Salerno, | en |
dc.contributor.department | Dept. Ingegneria Industriale, Università degli Studi di Salerno, | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | University of Salerno | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.orcid | 0000-0002-8841-1861 | - |
crisitem.author.orcid | 0000-0002-5042-0244 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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DeLauro_2012.pdf | Article | 2.19 MB | Adobe PDF | |
DeLauro_manuscript_2012.pdf | Manuscript | 2.31 MB | Adobe PDF | View/Open |
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