Zobrazeno 1 - 10 of 107 pro vyhledávání: '"B. Alessandrini"'
1
Akademický článek
Tomographic image of the crust and uppermost mantle of the Ionian and Aegean regions
Autor: G. N. Stavrakakis, F. M. Mele, G. Karantonis, C. Falcone, G. Drakatos, L. Beranzoli, B. Alessandrini
Publikováno v: Annals of Geophysics, Vol 40, Iss 1 (1997)
We present a tomographic view of the crust and uppermost mantle beneath the Central Mediterranean area obtained from P-wave arrival times of regional earthquakes selected from the ISC bulletin. The P-wave velocity anomalies are obtained using Thurber
Externí odkaz: https://doaj.org/article/a25e81d9abfe4459bdbd2d7ab885d24f
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2
Akademický článek
3-D crustal P-wave velocity tomography of the Italian region using local and regional seismicity data
Autor: F. M. Mele, L. Beranzoli, B. Alessandrini
Publikováno v: Annals of Geophysics, Vol 38, Iss 2 (1995)
A tomographic experiment was performed in the Italian region using local and regional arrivaI times of p and S seismological phases selected from the Italian National Bulletin in the time interval 1984-1991. We deter- mined a 3-D crustal P-wave veloc
Externí odkaz: https://doaj.org/article/0ff454fd856244328f14e9faf70fe4b6
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3
Akademický článek
A simple P-wave polarization analysis: its application to earthquake location
Autor: M. Gasperini, M. Demartin, M. Cattaneo, B. Alessandrini, V. Lanza
Publikováno v: Annals of Geophysics, Vol 37, Iss 5 (1994)
We present a method for hypocentral location which takes into account all three components of ground motion and not only the vertical one, as it is usually done by standard least-square techniques applied to arrival times. Assuming that P-wave partic
Externí odkaz: https://doaj.org/article/ddb3233b29af4c8eb266361cbda6b4a0
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5
Akademický článek
Long period channel waves from records of Friuli (Italy) earthquakes in 1976
Autor: P. F. BIAGI, B. ALESSANDRINI, M. CAPUTO
Publikováno v: Annals of Geophysics, Vol 34, Iss 1, Pp 225-236 (1981)
We present a study of a group of long period waves excited by theearthquakes of Friuli (Italy) in 1976 and recorded between longitudinaland transverse body waves by Long-period seismographs at epicentraldistances up to about 3 000 Km. The spectral an
Externí odkaz: https://doaj.org/article/92c5e678a46446478e23310bbbefc5da
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6
Akademický článek
Progressive estimation of hypocentres and three dimensional crustal model
Autor: B. ALESSANDRINI, L. LEVATO
Publikováno v: Annals of Geophysics, Vol 33, Iss 1, Pp 297-317 (1980)
The arrival times of a set of earthquakes at a seismic station networkcontain information both on the hypocentres of earthquakes as well as onthe physical parameters of the area crossed by seismic ray paths. Thispaper discusses an evaluation that ren
Externí odkaz: https://doaj.org/article/94fb099a29974745b841677832224260
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7
Akademický článek
On the possibility of determining the focal parameters of an earthquake using a local network equipped with three-component seismometers
Autor: B. ALESSANDRINI
Publikováno v: Annals of Geophysics, Vol 34, Iss 1, Pp 189-207 (1981)
Bv exploiting the possibility of determining the angle of emergenceand the azimuth of a seismic ray at an observation point equipped withone vertical seismograph and two horizontal ones and using recent digitaldata acquisition techniques, an effectiv
Externí odkaz: https://doaj.org/article/5c4eb0fd2d324ebd933848dff4f3982e
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