Repository logo
  • Log In
    New user? Click here to register.Have you forgotten your password?
University College Dublin
  • Colleges & Schools
  • Statistics
  • All of DSpace
  • Log In
    New user? Click here to register.Have you forgotten your password?
  1. Home
  2. College of Science
  3. School of Earth Sciences
  4. Earth Sciences Research Collection
  5. The coupling between very long period seismic events, volcanic tremor, and degassing rates at Mount Etna volcano
 
  • Details
Options

The coupling between very long period seismic events, volcanic tremor, and degassing rates at Mount Etna volcano

File(s)
FileDescriptionSizeFormat
Download coupling_between_vlp.pdf1.84 MB
Author(s)
Zuccarello, Luciano 
Burton, Michael R. 
Saccorotti, Gilberto 
Bean, Christopher J. 
Patané, Domenico 
Uri
http://hdl.handle.net/10197/5428
Date Issued
September 2013
Date Available
20T04:00:14Z March 2014
Abstract
From December 2005 to January 2006, an anomalous degassing episode was observed at Mount Etna, well-correlated with an increase in volcanic tremor, and in the almost complete absence of eruptive activity. In the same period, more than 10,000 very long period (VLP) events were detected. Through moment tensor inversion analyses of the VLP pulses, we obtained quantitative estimates of the volumetric variations associated with these events. This allowed a quantitative investigation of the relationship between VLP seismic activity, volcanic tremor, and gas emission rate at Mount Etna. We found a statistically significant positive correlation between SO2 gas flux and volcanic tremor, suggesting that tremor amplitude can be used as a first-order proxy for the background degassing activity of the volcano. VLP volumetric changes and SO2 gas flux are correlated only for the last part of our observations, following a slight change in the VLP source depth. We calculate that the gas associated with VLP signal genesis contributed less than 5% of the total gas emission. The existence of a linear correlation between VLP and degassing activities indicates a general relationship between these two processes. The effectiveness of such coupling appears to depend upon the particular location of the VLP source, suggesting that conduit geometry might play a significant role in the VLP-generating process. These results are the first report on Mount Etna of a quantitative relationship between the amounts of gas emissions directly estimated through instrumental flux measurements and the quantities of gas mass inferred in the VLP source inversion.
Type of Material
Journal Article
Publisher
American Geophysical Union
Journal
Journal of Geophysical Research-Solid Earth
Volume
118
Issue
9
Start Page
4910
End Page
4921
Copyright (Published Version)
2013, American Geophysical Union
Keywords
  • Very long period even...

  • Gas emission

  • Stratovolcano

  • basaltic volcano

  • Volcanic activity

  • Seismic measurements

  • Gas

DOI
10.1002/jgrb.50363
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Owning collection
Earth Sciences Research Collection
Scopus© citations
38
Acquisition Date
Feb 7, 2023
View Details
Views
1821
Last Week
1
Last Month
1
Acquisition Date
Feb 8, 2023
View Details
Downloads
499
Last Month
237
Acquisition Date
Feb 8, 2023
View Details
google-scholar
University College Dublin Research Repository UCD
The Library, University College Dublin, Belfield, Dublin 4
Phone: +353 (0)1 716 7583
Fax: +353 (0)1 283 7667
Email: mailto:research.repository@ucd.ie
Guide: http://libguides.ucd.ie/rru

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science

  • Cookie settings
  • Privacy policy
  • End User Agreement