Stromboli volcano (Southern Italy), only few minor precur- sors (gas output) have been identified for ‘major’ Strombolian explosions. We use ground-based interferometric synthetic aperture radar (GBInSAR) technology to monitor the displace- ment rate of the summit area of Stromboli. We analysed the 2009–2011 period. The analysis of the displacement rate has been performed by dividing the summit zone monitored by the GBInSAR into three regions, corresponding to the edge of the crater area (1 and 2), and to the slope of the NE crater (3). Pulses of rapid expansion of sector 3, of variable duration and amplitude, appear in coincidence with periods of intense activity that include lava flows and major explosions. We associate this expansion with the pressurization of the magma column that is recharged by deep-derived gas, promoting the onset of ‘major explosion-dominated’ activity.

Ground-based InSAR reveals conduit pressurization pulses at Stromboli volcano / Di Traglia F.; Del Ventisette C.; Rosi M.; Mugnai F.; Intrieri E.; Moretti S.; Casagli N.. - In: TERRA NOVA. - ISSN 0954-4879. - STAMPA. - 25(3):(2013), pp. 192-198. [10.1111/ter.12020]

Ground-based InSAR reveals conduit pressurization pulses at Stromboli volcano

DI TRAGLIA, FEDERICO;DEL VENTISETTE, CHIARA;MUGNAI, FRANCESCO;INTRIERI, EMANUELE;MORETTI, SANDRO;CASAGLI, NICOLA
2013

Abstract

Stromboli volcano (Southern Italy), only few minor precur- sors (gas output) have been identified for ‘major’ Strombolian explosions. We use ground-based interferometric synthetic aperture radar (GBInSAR) technology to monitor the displace- ment rate of the summit area of Stromboli. We analysed the 2009–2011 period. The analysis of the displacement rate has been performed by dividing the summit zone monitored by the GBInSAR into three regions, corresponding to the edge of the crater area (1 and 2), and to the slope of the NE crater (3). Pulses of rapid expansion of sector 3, of variable duration and amplitude, appear in coincidence with periods of intense activity that include lava flows and major explosions. We associate this expansion with the pressurization of the magma column that is recharged by deep-derived gas, promoting the onset of ‘major explosion-dominated’ activity.
2013
25(3)
192
198
Di Traglia F.; Del Ventisette C.; Rosi M.; Mugnai F.; Intrieri E.; Moretti S.; Casagli N.
File in questo prodotto:
File Dimensione Formato  
Di Traglia et al TERRA NOVA 2013.pdf

Accesso chiuso

Tipologia: Versione finale referata (Postprint, Accepted manuscript)
Licenza: Open Access
Dimensione 947.89 kB
Formato Adobe PDF
947.89 kB Adobe PDF   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/789144
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 26
  • ???jsp.display-item.citation.isi??? 24
social impact