Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/7966
DC Field | Value | Language |
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dc.contributor.authorall | Falanga, M; 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 | 2012-05-28T08:06:06Z | en |
dc.date.available | 2012-05-28T08:06:06Z | en |
dc.date.issued | 2012 | en |
dc.identifier.uri | http://hdl.handle.net/2122/7966 | en |
dc.description.abstract | In the present paper, we analyse long-period (LP) events and seismic noise recorded at Campi Flegrei during the uplift episode of 2004–2006. The results of a detailed polarization analysis indicate that the large number of LPs detected during the seismic crisis were accompanied by a sustained activity consisting of very low-energy volcanic signals. These weak volcanic signals, which are usually absent in ambient noise recorded in the studied area, and LP events have similar properties, namely they are radially polarized towards the same LP source. The large dataset analysed allows us to study the statistics of the polarization, leading to the extraction of the average properties of the volcanic signals. An estimate of the complexity of the system can be provided by the degrees of freedom necessary to describe the asymptotic dynamics in a reconstructed phase space. This analysis shows that both LPs and low-energy signals can be described by a low-dimensional dynamical system, while ambient noise unrelated to volcanic activity is higher dimensional. Based on these observations, we interpret the phenomena observed during the seismic crisis in the framework of the theory of self-oscillating systems, in which LPs and low-energy signals represent self-oscillations generated by a persistent hydrothermal source. | en |
dc.language.iso | English | en |
dc.publisher.name | Springer Berlin Heidelberg | en |
dc.relation.ispartof | Bulletin of volcanology | en |
dc.relation.ispartofseries | /74 (2012) | en |
dc.subject | Campi Flegrei, Long-period events, Self-sustained oscillations | en |
dc.title | Inferences on the source of long-period seismicity at Campi Flegrei from polarization analysis and reconstruction of the asymptotic dynamics | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.description.pagenumber | 1537-1551 | en |
dc.identifier.URL | http://www.springerlink.com/content/g080443822666723/ | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology | en |
dc.identifier.doi | 10.1007/s00445-012-0612-2 | en |
dc.description.obiettivoSpecifico | 1.4. TTC - Sorveglianza sismologica delle aree vulcaniche attive | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | restricted | en |
dc.relation.issn | 0258-8900 | en |
dc.relation.eissn | 1432-0819 | en |
dc.contributor.author | Falanga, M | en |
dc.contributor.author | Petrosino, S | en |
dc.contributor.department | 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 | 0000-0002-5042-0244 | - |
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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Falanga_2012.pdf | article | 1.65 MB | Adobe PDF |
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