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Regional model of peak ground motion in Southwestern Germany.

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Title: Regional model of peak ground motion in Southwestern Germany.
Authors: Zeiß, Jens1,2 (AUTHOR) jens.zeiss@gd.nrw.de, Stange, Stefan1 (AUTHOR), Brüstle, Andrea1 (AUTHOR)
Source: Journal of Seismology. Dec2022, Vol. 26 Issue 6, p1105-1136. 32p.
Subject Terms: *Ground motion, *Earthquake hazard analysis, *Equations of motion, *Motion
Geographic Terms: Germany, Baden-Württemberg (Germany), Rhineland-Palatinate (Germany)
Abstract: Ground motion prediction equations (GMPEs) and the effects of site amplifications are substantial for the assessment of seismic hazard. To investigate the regional earthquake ground motion in southwestern Germany, we fit ground motion models to observed horizontal peak ground acceleration from earthquakes with 0.9 ≤ M L ≤ 4 using the earthquake catalogue of the joint federal seismological services of Baden-Württemberg and Rhineland-Palatinate (Erdbebendienst Südwest), Germany. We use GMPEs that consider first-order geometrical spreading, first-order magnitude-scaling, and apparent anelastic attenuation. Due to indications from the data residuals, we additionally introduce a heuristically defined expression to consider Mohorovičić reflection phases, and a second-order geometrical decay term that is derived to approximate the decay of a general moment-tensor source. While the expression for the Mohorovičić reflection phases improved the data fit, the second-order decay term is hardly changing the resulting model. Averaged site deviations from the median model are incorporated to account for site effects. Depending on the local geological conditions, these deviations show a strong variability within individual seismogeographical regions. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 160295474
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PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Regional model of peak ground motion in Southwestern Germany.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Zeiß%2C+Jens%22">Zeiß, Jens</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> jens.zeiss@gd.nrw.de</i><br /><searchLink fieldCode="AR" term="%22Stange%2C+Stefan%22">Stange, Stefan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Brüstle%2C+Andrea%22">Brüstle, Andrea</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Seismology%22">Journal of Seismology</searchLink>. Dec2022, Vol. 26 Issue 6, p1105-1136. 32p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Ground+motion%22">Ground motion</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Equations+of+motion%22">Equations of motion</searchLink><br />*<searchLink fieldCode="DE" term="%22Motion%22">Motion</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Germany%22">Germany</searchLink><br /><searchLink fieldCode="DE" term="%22Baden-Württemberg+%28Germany%29%22">Baden-Württemberg (Germany)</searchLink><br /><searchLink fieldCode="DE" term="%22Rhineland-Palatinate+%28Germany%29%22">Rhineland-Palatinate (Germany)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Ground motion prediction equations (GMPEs) and the effects of site amplifications are substantial for the assessment of seismic hazard. To investigate the regional earthquake ground motion in southwestern Germany, we fit ground motion models to observed horizontal peak ground acceleration from earthquakes with 0.9 ≤ M L ≤ 4 using the earthquake catalogue of the joint federal seismological services of Baden-Württemberg and Rhineland-Palatinate (Erdbebendienst Südwest), Germany. We use GMPEs that consider first-order geometrical spreading, first-order magnitude-scaling, and apparent anelastic attenuation. Due to indications from the data residuals, we additionally introduce a heuristically defined expression to consider Mohorovičić reflection phases, and a second-order geometrical decay term that is derived to approximate the decay of a general moment-tensor source. While the expression for the Mohorovičić reflection phases improved the data fit, the second-order decay term is hardly changing the resulting model. Averaged site deviations from the median model are incorporated to account for site effects. Depending on the local geological conditions, these deviations show a strong variability within individual seismogeographical regions. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=160295474
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s10950-022-10114-8
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 32
        StartPage: 1105
    Subjects:
      – SubjectFull: Ground motion
        Type: general
      – SubjectFull: Earthquake hazard analysis
        Type: general
      – SubjectFull: Equations of motion
        Type: general
      – SubjectFull: Motion
        Type: general
      – SubjectFull: Germany
        Type: general
      – SubjectFull: Baden-Württemberg (Germany)
        Type: general
      – SubjectFull: Rhineland-Palatinate (Germany)
        Type: general
    Titles:
      – TitleFull: Regional model of peak ground motion in Southwestern Germany.
        Type: main
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          Name:
            NameFull: Zeiß, Jens
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          Name:
            NameFull: Stange, Stefan
      – PersonEntity:
          Name:
            NameFull: Brüstle, Andrea
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 12
              Text: Dec2022
              Type: published
              Y: 2022
          Identifiers:
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              Value: 13834649
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            – Type: volume
              Value: 26
            – Type: issue
              Value: 6
          Titles:
            – TitleFull: Journal of Seismology
              Type: main
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