Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/13546
Authors: Petrosino, Simona* 
Ricco, Ciro* 
De Lauro, Enza* 
Aquino, Ida* 
Falanga, Mariarosaria* 
Title: Time evolution of medium and long-period ground tilting at Campi Flegrei caldera
Journal: Advances in Geosciences 
Series/Report no.: /52 (2020)
Issue Date: Mar-2020
DOI: 10.5194/adgeo-52-9-2020
URL: https://www.adv-geosci.net/52/9/2020/
Abstract: We analyse tiltmeter time series recorded from April 2015 to March 2019 at three borehole instruments installed at Campi Flegrei caldera (Italy). We evaluate the crustal response in terms of ground tilting to external excitations of medium/long-period tidal constituents by applying a polarization analysis. The azimuths of the tilt vectors show well-defined polarization directions and the ground tilting planes oscillate with the periodicity of the corresponding tidal constituents. For two of the three tiltmeters, the average ground oscillation pattern related to the monthlyMmand fortnightly Mf constituents show seasonal variations, which can be ascribed to rainfall-induced tilting. In addition, for the same two instruments, a clear seasonal amplitude modulation of the diurnal S1 constituent appears in the time series, revealing the occurrence of site thermoelastic effects. The results indicate that the tidal tilting is mainly controlled by the local stress field distribution and rheology; in addition, seasonal exogenous factors like rainfalls play a role in modulating the ground deformation.
Appears in Collections:Article published / in press

Files in This Item:
File Description SizeFormat
Petrosino_2020.pdf3.05 MBAdobe PDFView/Open
Show full item record

Page view(s)

101
Last Week
2
Last month
2
checked on Jul 28, 2021

Download(s)

39
checked on Jul 28, 2021

Google ScholarTM

Check

Altmetric