Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/10710
Authors: De Siena, Luca* 
Amoruso, Antonella* 
Del Pezzo, Edoardo* 
Wakeford, Zoe* 
Castellano, Mario* 
Crescentini, Luca* 
Title: Space-weighted seismic attenuation mapping of the aseismic source of Campi Flegrei 1983-84 unrest
Issue Date: 22-Feb-2017
Series/Report no.: /44 (2017)
DOI: 10.1002/2017GL072507
URI: http://hdl.handle.net/2122/10710
Abstract: Coda wave attenuation imaging is able to detect fluid/melt accumulation and ancient magmatic bodies in volcanoes. Here we use recently developed space-weighting sensitivity functions to invert for the spatial distributions of multifrequency coda wave attenuation (Q−1 c ), measured during the largest monitored unrest at Campi Flegrei caldera (1983–1984). High-attenuation anomalies are spatially correlated with the regions of highest structural complexities and cross faulting. They characterize deep fluid circulation in and around the aseismic roots of the 1534 A.D. Mount Nuovo eruption and fluid accumulation in the areas of highest hydrothermal hazard. Just offshore Pozzuoli, and at the highest frequency (wavelengths of ∼150 m), the main cause of ground deformation and seismicity during the unrest is an aseismic low-attenuation circular anomaly, similar in shape and nature to those produced by ancient magmatic reservoirs and active sills at other volcanoes.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
DeSiena_et_al-2017-GRL.pdf1.2 MBAdobe PDFView/Open
Show full item record

Page view(s)

9
Last Week
2
Last month
1
checked on Jun 22, 2018

Download(s)

2
checked on Jun 22, 2018

Google ScholarTM

Check

Altmetric