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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>Dianne L. Brien</dc:contributor>
  <dc:contributor>Mark E. Reid</dc:contributor>
  <dc:contributor>William H. Schulz</dc:contributor>
  <dc:contributor>Matthew J. Tello</dc:contributor>
  <dc:creator>Rex L. Baum</dc:creator>
  <dc:date>2024</dc:date>
  <dc:description>&lt;div id="abstract" class="abstract sec"&gt;&lt;div class="abstract-content show-no-js"&gt;&lt;p id="d1e134"&gt;Hurricane Maria induced about 70 000 landslides throughout Puerto Rico, USA, including thousands each in three municipalities situated in Puerto Rico's rugged Cordillera Central range. By combining a nonlinear soil-depth model, presumed wettest-case pore pressures, and quasi-three-dimensional (3D) slope-stability analysis, we developed a landslide susceptibility map that has very good performance and continuous susceptibility zones having smooth, buffered boundaries. Our landslide susceptibility map enables assessment of potential ground-failure locations and their use as landslide sources in a companion assessment of inundation and debris-flow runout. The quasi-3D factor of safety,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="inline-formula"&gt;&lt;i&gt;F&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;/span&gt;, showed strong inverse correlation to landslide density (high density at low&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="inline-formula"&gt;&lt;i&gt;F&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;/span&gt;). Area under the curve (AUC) of true positive rate (TPR) versus false positive rate (FPR) indicated success of&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="inline-formula"&gt;&lt;i&gt;F&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;in identifying head-scarp points (AUC &lt;span class="inline-formula"&gt;=&lt;/span&gt; 0.84) and source-area polygons (0.85 &lt;span class="inline-formula"&gt;≤&lt;/span&gt; AUC &lt;span class="inline-formula"&gt;≤&lt;/span&gt; 0.88). The susceptibility zones enclose specific percentages of observed landslides. Thus, zone boundaries use successive&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="inline-formula"&gt;&lt;i&gt;F&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;levels for increasing TPR of landslide head-scarp points, with zones bounded by&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="inline-formula"&gt;&lt;i&gt;F&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;at TPR &lt;span class="inline-formula"&gt;=&lt;/span&gt; 0.75, very high;&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="inline-formula"&gt;&lt;i&gt;F&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;at TPR &lt;span class="inline-formula"&gt;=&lt;/span&gt; 0.90, high; and the remainder moderate to low. The very high susceptibility zone, with 118 landslides km&lt;span class="inline-formula"&gt;&lt;sup&gt;−2&lt;/sup&gt;&lt;/span&gt;, covered 23 % of the three municipalities. The high zone (51 landslides km&lt;span class="inline-formula"&gt;&lt;sup&gt;−2&lt;/sup&gt;&lt;/span&gt;) covered another 10 %.&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;&lt;div id="citation-footer" class="sec"&gt;&lt;br&gt;&lt;/div&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.5194/nhess-24-1579-2024</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>European Geosciences Union</dc:publisher>
  <dc:title>Assessing locations susceptible to shallow landslide initiation during prolonged intense rainfall in the Lares, Utuado, and Naranjito municipalities of Puerto Rico</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>