Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8695
AuthorsPriolo, E.* 
Lovisa, L.* 
Zollo, A.* 
B¨ohm, G.* 
D’Auria, L.* 
Gautier, S.* 
Gentile, F.* 
Klin, P.* 
Latorre, D.* 
Michelini, A.* 
Vanorio, T.* 
Virieux, J.* 
TitleThe Campi Flegrei Blind Test: Evaluating the Imaging Capability of Local Earthquake Tomography in a Volcanic Area
Issue Date2012
Series/Report no./v 2012 (2012)
DOI10.1155/2012/505286
URIhttp://hdl.handle.net/2122/8695
KeywordsCampi Flegrei
Tomography
Subject Classification04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy 
AbstractDuring the 1982–1984 bradyseismic crises in the Campi Flegrei area (Italy), the University of Wisconsin deployed a network of seismological stations to record local earthquakes. In order to analyse the potential of the recorded data in terms of tomographic imaging, a blind test was recently set up and carried out in the framework of a research project. A model representing a hypothetical 3D structure of the area containing the Campi Flegrei caldera was also set up, and a synthetic dataset of time arrivals was in turn computed. The synthetic dataset consists of several thousand P- and S-time arrivals, computed at about fourteen stations. The tomographic inversion was performed by four independent teams using different methods. The teams had no knowledge of either the input velocity model or the earthquake hypocenters used to create the synthetic dataset. The results obtained by the different groups were compared and analysed in light of the true model. This work provides a thorough analysis of the earthquake tomography potential of the dataset recording the seismic activity at Campi Flegrei in the 1982–1984 period. It shows that all the tested earthquake tomography methods provide reliable low-resolution images of the background velocity field of the Campi Flegrei area, but with some differences. However, none of them succeeds in detecting the hypothetical structure details (i.e. with a size smaller than about 1.5–2 km), such as a magmatic chamber 4 km deep and especially the smaller, isolated bodies, which represent possible magmatic chimneys and intrusions.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
2012_Priolo.pdf11.43 MBAdobe PDFView/Open
Show full item record

Page view(s)

133
Last Week
1
Last month
checked on Jun 27, 2017

Download(s)

21
checked on Jun 27, 2017

Google ScholarTM

Check

Altmetric