Publication Date:
2020-11-17
Description:
Shear wave splitting parameters represent
a useful tool to detail the stress changes
occurring in volcanic environments before impending
eruptions. In the present paper, we display
the parameter estimates obtained through
implementation of a semiautomatic algorithm applied
to all useful datasets of the following Italian
active volcanic areas:Mt. Vesuvius,Campi Flegrei,
and Mt. Etna. Most of these datasets have been
the object of several studies (Bianco et al., Annali
di Geofisica, XXXXIX 2:429–443, 1996, J Volcanol
Geotherm Res 82:199–218, 1998a, Geophys
Res Lett 25(10):1545–1548, 1998b, Phys Chem
Earth 24:977–983, 1999, J Volcanol Geotherm Res
133:229–246, 2004, Geophys J Int 167(2):959–967,
2006; Del Pezzo et al., Bull Seismol Soc Am
94(2):439–452, 2004). Applying the semiautomatic
algorithm, we confirmed the results obtained in
previous studies, so we do not discuss in much
detail each of our findings but give a general
overview of the anisotropic features of the investigated
Italian volcanoes. In order to make a comparison
among the different volcanic areas, we
present our results in terms of the main direction of the fast polarization (ϕ) and percentage of
shear wave anisotropy (ξ )
Description:
Published
Description:
253–266
Description:
4T. Sismicità dell'Italia
Description:
JCR Journal
Description:
reserved
Keywords:
Shear wave splitting parameters
;
Temporal variations
;
Volcano seismology
;
Semiautomatic techniques
;
04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy
;
04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology
;
04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
Permalink
