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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>Jonathan P. Stewart</dc:contributor>
  <dc:contributor>Robert E. Kayen</dc:contributor>
  <dc:contributor>Giuseppe Lanzo</dc:contributor>
  <dc:creator>Giuseppe Scasserra</dc:creator>
  <dc:date>2008</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;A dataset of site conditions at 101 Italian ground motion stations with recorded&amp;nbsp;&lt;/span&gt;motions&lt;span&gt;&amp;nbsp;has been compiled that includes&amp;nbsp;&lt;/span&gt;geologic&lt;span&gt;&amp;nbsp;characteristics and&amp;nbsp;&lt;/span&gt;seismic&lt;span&gt;&amp;nbsp;&lt;/span&gt;velocities.&lt;span&gt;&amp;nbsp;&lt;/span&gt;Geologic&lt;span&gt;&amp;nbsp;characterization is derived principally from local&amp;nbsp;&lt;/span&gt;geologic&lt;span&gt;&amp;nbsp;investigations by ENEL that include detailed mapping and cross sections. For sites lacking such detailed&amp;nbsp;&lt;/span&gt;geologic&lt;span&gt;&amp;nbsp;characterization, the&amp;nbsp;&lt;/span&gt;geology&lt;span&gt;&amp;nbsp;maps of the by Servizio&amp;nbsp;&lt;/span&gt;Geologico&lt;span&gt;&amp;nbsp;d'Italia are used.&amp;nbsp;&lt;/span&gt;Seismic&lt;span&gt;&amp;nbsp;&lt;/span&gt;velocities&lt;span&gt;&amp;nbsp;are extracted from the literature and the files of consulting&amp;nbsp;&lt;/span&gt;engineers,&lt;span&gt;&amp;nbsp;&lt;/span&gt;geologists&lt;span&gt;&amp;nbsp;and public agencies for 33 sites. Data&amp;nbsp;&lt;/span&gt;sources&lt;span&gt;&amp;nbsp;utilized include post&amp;nbsp;&lt;/span&gt;earthquake&lt;span&gt;&amp;nbsp;site investigations (Friuli and Irpinia events), microzonation studies, and miscellaneous investigations performed by researchers or consulting engineers/geologists. Additional&amp;nbsp;&lt;/span&gt;seismic&lt;span&gt;&amp;nbsp;&lt;/span&gt;velocities&lt;span&gt;&amp;nbsp;are&amp;nbsp;&lt;/span&gt;measured&lt;span&gt;&amp;nbsp;by the authors using the controlled&amp;nbsp;&lt;/span&gt;source&lt;span&gt;&amp;nbsp;spectral analysis of surface waves (SASW) method for 18 sites that recorded the 1997–1998 Umbria Marche&amp;nbsp;&lt;/span&gt;earthquake&lt;span&gt;&amp;nbsp;sequence. The compiled&amp;nbsp;&lt;/span&gt;velocity measurements&lt;span&gt;&amp;nbsp;provide data for 51 of the 101 sites. For the remaining sites, the average&amp;nbsp;&lt;/span&gt;seismic&lt;span&gt;&amp;nbsp;&lt;/span&gt;velocity&lt;span&gt;&amp;nbsp;in the upper 30 m&amp;nbsp;&lt;/span&gt;&lt;span class="equationTd inline-formula"&gt;&lt;span id="MathJax-Element-1-Frame" class="MathJax" data-mathml="&lt;math xmlns=&amp;quot;http://www.w3.org/1998/Math/MathML&amp;quot; overflow=&amp;quot;scroll&amp;quot; altimg=&amp;quot;eq-00001.gif&amp;quot;&gt;&lt;msub&gt;&lt;mi&gt;(V&lt;/mi&gt;&lt;mrow&gt;&lt;mtext&gt;s30&lt;/mtext&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;mi&gt;)&lt;/mi&gt;&lt;/math&gt;"&gt;&lt;span id="MathJax-Span-1" class="math"&gt;&lt;span&gt;&lt;span id="MathJax-Span-2" class="mrow"&gt;&lt;span id="MathJax-Span-3" class="msub"&gt;&lt;span id="MathJax-Span-4" class="mi"&gt;(V&lt;/span&gt;&lt;span id="MathJax-Span-5" class="mrow"&gt;&lt;span id="MathJax-Span-6" class="mtext"&gt;s30&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span id="MathJax-Span-7" class="mi"&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;is estimated using a hybrid approach. For young Quaternary alluvium,&amp;nbsp;&lt;/span&gt;&lt;span class="equationTd inline-formula"&gt;&lt;span id="MathJax-Element-2-Frame" class="MathJax" data-mathml="&lt;math xmlns=&amp;quot;http://www.w3.org/1998/Math/MathML&amp;quot; overflow=&amp;quot;scroll&amp;quot; altimg=&amp;quot;eq-00002.gif&amp;quot;&gt;&lt;msub&gt;&lt;mi&gt;V&lt;/mi&gt;&lt;mrow&gt;&lt;mtext&gt;s30&lt;/mtext&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;"&gt;&lt;span id="MathJax-Span-8" class="math"&gt;&lt;span&gt;&lt;span id="MathJax-Span-9" class="mrow"&gt;&lt;span id="MathJax-Span-10" class="msub"&gt;&lt;span id="MathJax-Span-11" class="mi"&gt;𝑉&lt;/span&gt;&lt;span id="MathJax-Span-12" class="mrow"&gt;&lt;span id="MathJax-Span-13" class="mtext"&gt;s30&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;an existing empirical relationship for California sites by Wills and Clahan (2006) is used, which we justify by validating this relationship against Italian data. For Tertiary Limestone and Italian Mesozoic rocks, empirical estimates of&amp;nbsp;&lt;/span&gt;&lt;span class="equationTd inline-formula"&gt;&lt;span id="MathJax-Element-3-Frame" class="MathJax" data-mathml="&lt;math xmlns=&amp;quot;http://www.w3.org/1998/Math/MathML&amp;quot; overflow=&amp;quot;scroll&amp;quot; altimg=&amp;quot;eq-00003.gif&amp;quot;&gt;&lt;msub&gt;&lt;mi&gt;V&lt;/mi&gt;&lt;mrow&gt;&lt;mtext&gt;s30&lt;/mtext&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;"&gt;&lt;span id="MathJax-Span-14" class="math"&gt;&lt;span&gt;&lt;span id="MathJax-Span-15" class="mrow"&gt;&lt;span id="MathJax-Span-16" class="msub"&gt;&lt;span id="MathJax-Span-17" class="mi"&gt;𝑉&lt;/span&gt;&lt;span id="MathJax-Span-18" class="mrow"&gt;&lt;span id="MathJax-Span-19" class="mtext"&gt;s30&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;are developed using the available data.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1063/1.2963854</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>American Institute of Physics</dc:publisher>
  <dc:title>Site characterization of Italian strong motion recording stations</dc:title>
  <dc:type>text</dc:type>
</oai_dc:dc>