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Building vulnerability and seismic risk analysis in the urban area of Mt. Etna volcano (Italy).

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Title: Building vulnerability and seismic risk analysis in the urban area of Mt. Etna volcano (Italy).
Authors: D'Amico, S.1 salvatore.damico@ingv.it, Meroni, F.2, Sousa, M.3, Zonno, G.2
Source: Bulletin of Earthquake Engineering. Jul2016, Vol. 14 Issue 7, p2031-2045. 15p.
Subject Terms: *Earthquake damage, *Economic impact, *Earthquake hazard analysis
Geographic Terms: Mount Etna (Italy), Italy
Abstract: The tectonic system of the eastern flank of Mt. Etna volcano (Sicily, Italy) is the source of most of the strongest earthquakes occurring in the area over the last 205 years. A total of 12 events with epicentre intensities ≥VIII EMS have occurred at Mt. Etna, 10 of which were located on the eastern flank. This indicates a mean recurrence time of about 20 years. This area is highly urbanised, with many villages around the volcano at altitudes up to 700 m a.s.l. The southern and eastern flanks are particularly highly populated areas, with numerous villages very close to each other. The probabilistic seismic hazard due to local faults for Mt. Etna was calculated by adopting a site approach to seismic hazard assessment. Only the site histories of local volcano-tectonic earthquakes were considered, leaving out the effects due to strong regional earthquakes that occurred in north-eastern and south-eastern Sicily. The inventory used in this application refers to residential buildings. These data were extracted from the 1991 census of the Italian National Institute of Statistics, and are grouped according to the census sections. The seismic vulnerability of the elements at risk belonging to a given building typology is described by a vulnerability index, in accordance with a damage model based on macroseismic intensities. For the estimation of economic losses due to physical damage to buildings, an integrated impact indicator was used, which is equivalent to the lost building volume. The expected annualised economic earthquake losses were evaluated both in absolute and in relative terms, and were compared with the geographical distribution of seismic hazard and with similar evaluations of losses for other regions. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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PubType: Academic Journal
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  Data: Building vulnerability and seismic risk analysis in the urban area of Mt. Etna volcano (Italy).
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  Data: <searchLink fieldCode="AR" term="%22D'Amico%2C+S%2E%22">D'Amico, S.</searchLink><relatesTo>1</relatesTo><i> salvatore.damico@ingv.it</i><br /><searchLink fieldCode="AR" term="%22Meroni%2C+F%2E%22">Meroni, F.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Sousa%2C+M%2E%22">Sousa, M.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Zonno%2C+G%2E%22">Zonno, G.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Earthquake+Engineering%22">Bulletin of Earthquake Engineering</searchLink>. Jul2016, Vol. 14 Issue 7, p2031-2045. 15p.
– Name: Subject
  Label: Subject Terms
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  Data: *<searchLink fieldCode="DE" term="%22Earthquake+damage%22">Earthquake damage</searchLink><br />*<searchLink fieldCode="DE" term="%22Economic+impact%22">Economic impact</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink>
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  Label: Geographic Terms
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  Data: <searchLink fieldCode="DE" term="%22Mount+Etna+%28Italy%29%22">Mount Etna (Italy)</searchLink><br /><searchLink fieldCode="DE" term="%22Italy%22">Italy</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The tectonic system of the eastern flank of Mt. Etna volcano (Sicily, Italy) is the source of most of the strongest earthquakes occurring in the area over the last 205 years. A total of 12 events with epicentre intensities ≥VIII EMS have occurred at Mt. Etna, 10 of which were located on the eastern flank. This indicates a mean recurrence time of about 20 years. This area is highly urbanised, with many villages around the volcano at altitudes up to 700 m a.s.l. The southern and eastern flanks are particularly highly populated areas, with numerous villages very close to each other. The probabilistic seismic hazard due to local faults for Mt. Etna was calculated by adopting a site approach to seismic hazard assessment. Only the site histories of local volcano-tectonic earthquakes were considered, leaving out the effects due to strong regional earthquakes that occurred in north-eastern and south-eastern Sicily. The inventory used in this application refers to residential buildings. These data were extracted from the 1991 census of the Italian National Institute of Statistics, and are grouped according to the census sections. The seismic vulnerability of the elements at risk belonging to a given building typology is described by a vulnerability index, in accordance with a damage model based on macroseismic intensities. For the estimation of economic losses due to physical damage to buildings, an integrated impact indicator was used, which is equivalent to the lost building volume. The expected annualised economic earthquake losses were evaluated both in absolute and in relative terms, and were compared with the geographical distribution of seismic hazard and with similar evaluations of losses for other regions. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=115928298
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      – Type: doi
        Value: 10.1007/s10518-015-9804-4
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      – Code: eng
        Text: English
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        PageCount: 15
        StartPage: 2031
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      – SubjectFull: Earthquake damage
        Type: general
      – SubjectFull: Economic impact
        Type: general
      – SubjectFull: Earthquake hazard analysis
        Type: general
      – SubjectFull: Mount Etna (Italy)
        Type: general
      – SubjectFull: Italy
        Type: general
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      – TitleFull: Building vulnerability and seismic risk analysis in the urban area of Mt. Etna volcano (Italy).
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            NameFull: Meroni, F.
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            NameFull: Sousa, M.
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            – D: 01
              M: 07
              Text: Jul2016
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              Y: 2016
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