Please use this identifier to cite or link to this item:
Authors: Alessio, G.* 
Nappi, R.* 
Vilardo, G.* 
Mele, G.* 
Title: Rockfall episodes along structural discontinuities of the Vesuvius volcano crater rim: morphostructural study and analysis of seismic signals
Issue Date: 3-Sep-2006
Subject Classification04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring 
Abstract: Seismic signals recorded in volcanic areas and associated with volcanic activity can be originated from many different sources. Among various types of transient signals, i.e., explosion quakes, tectonic quakes, long period events, those related to rockfall episodes are very important because rockfalls might contribute significantly to volcanic hazard even in areas characterized by volcanic quiescence. In this study we have analyzed the intracrateric rockfall events occurred since 2001 along the Vesuvius asymmetrical crater rim. Field investigations of the main morphostructural features carried out in the summit area, along with digital images collected during the study period, allowed us to infer the time evolution and the areal distribution of the rockfalls. Two main source areas located on opposite sides of the volcanic crater, to the NW and SSE, have been identi ed. Both of them are characterized by intense fracturing and fumarolic emissions. Seismic signals of the intracrateric rockfall events, recorded by the broadband and short-period permanent stations operated by the Osservatorio Vesuviano-INGV of Naples and located within a few kilometers from the crater, have been analyzed in terms of duration and frequency content in order to characterize the peculiar features of the source areas.
Appears in Collections:Conference materials

Files in This Item:
File Description SizeFormat
Alessio_et_al_ESC_2006.pdf49.58 kBAdobe PDFView/Open
Show full item record

Page view(s)

checked on Mar 31, 2023


checked on Mar 31, 2023

Google ScholarTM