Sub-volcanic crystallization at Stromboli (Aeolian Islands, southern Italy) preceding the Sciara del Fuoco sector collapse: evidence from monzonite lithic suite

1997 ◽  
Vol 59 (1) ◽  
pp. 10-20 ◽  
Author(s):  
Alberto Renzulli ◽  
Patrizia Santi
Keyword(s):  
Southern Italy ◽  
Sector Collapse ◽  
Aeolian Islands ◽  
Sciara Del Fuoco

Seismic coda Q and scaling law of the source spectra at the Aeolian Islands, southern Italy

1983 ◽  
Vol 73 (1) ◽  
pp. 97-108
Author(s):  
E. Del Pezzo ◽  
F. Ferulano ◽  
A. Giarrusso ◽  
M. Martini
Keyword(s):  
Southern Italy ◽  
Scaling Law ◽  
Coda Wave ◽  
Corner Frequency ◽  
Volcanic Complex ◽  
Coda Q ◽  
Aeolian Islands ◽  
Scaling Properties ◽  
Linear Pattern ◽  
Seismic Coda

abstract The model developed by Aki and Chouet for the coda wave generation and propagation has been used to calculate the quality factor Q for the zone of the Aeolian Islands, southern Italy, in the frequency range of 1 to 12 Hz, and the scaling properties of the seismic spectrum in the magnitude range of 0.4 to 4.7. The Q found for the Aeolian area has a frequency dependence of the form Q = qfv. The absolute values of Q seem to be dependent on the station and location of the seismic events, confirming the strong lateral heterogeneities in the geological structure beneath the Aeolian Arc. A temporal variation has been noted in the Q calculated at Vulcano station (VPL) in a period of 3 weeks soon after the occurrence of a main shock of ML = 5.5 located near the station. The scaling behavior of this sequence is similar to that obtained in two areas of California and one portion of Japan, with a corner frequency that remains constant with an increasing seismic moment between magnitudes 1 and 4. It differs substantially from the scaling properties of the Hawaian earthquakes that show a linear pattern, without an increase of the stress drop with magnitude. The fact that Vulcano is an active volcano seems not to influence the scaling properties of the seismic sequence localized very near it. It probably indicates that the aftershocks used for calculating the scaling law are generated out of the volcanic complex Lipari-Vulcano, in a zone with a good capability of accumulating the stress.

Spectral and dynamical hints on the time scale of preparation of the 5 April 2003 explosion at Stromboli volcano

2006 ◽  
Vol 43 (1) ◽  
pp. 41-55 ◽  
Author(s):  
Roberto Carniel ◽  
Ramon Ortiz ◽  
Mauro Di Cecca
Keyword(s):  
Seismic Data ◽  
Time Scale ◽  
Material Failure ◽  
Stromboli Volcano ◽  
Forecast Method ◽  
Sector Collapse ◽  
Strombolian Activity ◽  
Dynamical Phase ◽  
Paroxysmal Event ◽  
Sciara Del Fuoco

Stromboli volcano is well known for its continuous strombolian activity. Moreover, the volcano occasionally shows effusive phases, the latest in 1985–1986. On 28 December 2002 Stromboli entered a new effusive phase, accompanied by different paroxysmal events that led to considerable hazards for inhabitants and tourists on the island of Stromboli. On 30 December 2002 a major sector collapse affected the Sciara del Fuoco slope and initiated a tsunami. On 5 April 2003 a powerful explosion, which can be compared in size with the most recent explosion in 1930, covered a large part of the normally tourist accessible summit area with bombs. As this explosion was not forecasted, although the island was by then effectively monitored by a dense deployment of instruments, in this paper, we tackle the problem of highlighting the time scale of preparation of this event and conduct a search for possible precursors. For this purpose, we analyze the seismic data preceding the paroxysm with spectral and dynamical methods, highlighting that this paroxysmal event can be seen as the final result of a dynamical phase that started at least 2.5 h before the event. Therefore, this is the time scale during which the search can and should be made for possible precursors. Moreover, the application of the "material failure forecast" method suggests that this final dynamical phase may be just the final acceleration of a process that was building up for at least several days prior to the event.

Alternative energy scenarios for small islands: A case study from Salina Island (Aeolian Islands, Southern Italy)

2012 ◽  
Vol 47 ◽  
pp. 135-146 ◽  
Author(s):  
Antonio Pietro Francesco Andaloro ◽  
Roberta Salomone ◽  
Laura Andaloro ◽  
Nicola Briguglio ◽  
Sergio Sparacia
Keyword(s):  
Alternative Energy ◽  
Southern Italy ◽  
Small Islands ◽  
Aeolian Islands

Flank instability of Stromboli volcano (Aeolian Islands, Southern Italy): Integration of GB-InSAR and geomorphological observations

Geomorphology ◽  
2013 ◽  
Vol 201 ◽  
pp. 60-69 ◽  
Author(s):  
Emanuele Intrieri ◽  
Federico Di Traglia ◽  
Chiara Del Ventisette ◽  
Giovanni Gigli ◽  
Francesco Mugnai ◽  
...  
Keyword(s):  
Southern Italy ◽  
Stromboli Volcano ◽  
Aeolian Islands

Oblique rifting in Salina, Lipari and Vulcano islands (Aeolian islands, southern Italy)

Terra Nova ◽  
1995 ◽  
Vol 7 (4) ◽  
pp. 444-452 ◽  
Author(s):  
Roberto Mazzuoli ◽  
Luigi Tortorici ◽  
Guido Ventura
Keyword(s):  
Southern Italy ◽  
Aeolian Islands ◽  
Oblique Rifting

The transition from calc-alkaline to potassic orogenic magmatism in the Aeolian Islands, Southern Italy

1988 ◽  
Vol 50 (6) ◽  
pp. 386-398 ◽  
Author(s):  
R. M. Ellam ◽  
M. A. Menzies ◽  
C. J. Hawkesworth ◽  
W. P. Leeman ◽  
M. Rosi ◽  
...  
Keyword(s):  
Southern Italy ◽  
Calc Alkaline ◽  
Aeolian Islands
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