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Areas within Multnomah County with liquefaction potential.
Low < 5% (maximum gridcode value 49)
Medium 5%-15% (maximum gridcode value 150)
High >15% (maximum... |
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Areas within Multnomah County with liquefaction potential.
Low < 5% (maximum gridcode value 49)
Medium 5%-15% (maximum gridcode value 150)
High >15% (maximum... |
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DOGAMI, GeoEngineers, APG |
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5000 |
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[] |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Liquefaction is a process where loose, wet sediments lose strength during an earthquake and behave similarly to a liquid. Once a soil liquefies, it will tend to settle vertically and/or spread laterally. With even very slight slopes, liquefied soils tend to move sideways downhill (lteral spreading). Settling or lateral spreading can cause major damage to buildings and to buried infrastructure such as pipes and cables. </SPAN></P><P><SPAN>Prepared by GeoEngineers and APG </SPAN></P><P><SPAN>Date: 10/13/2016</SPAN></P><P><SPAN>Source: DOGAMI 2013 Open-File Report O-13-06, Ground motion, ground deformation, tsunami inundation, coseismic subsidence, and damage potential maps for the 2012 Oregon Resilience Plan for Cascadia Subduction Zone Earthquakes, by Ian P. Madin and William J. Burns(</SPAN><A href="https://www.oregongeology.org/pubs/ofr/p-O-13-06.htm"><SPAN>link</SPAN></A><SPAN>)</SPAN></P><P><SPAN /></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This map is created from a subset of data from a Geographic Information System (GIS) database. Multnomah County makes no claims, representations, or warranties, express or implied, concerning the validity, reliability or accuracy of the GIS data and GIS data products furnished here, and each user of this data is responsible for determining its suitability for their intended purpose.</SPAN></P></DIV></DIV></DIV> |
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| title:
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DCS_GIS.DBO.Lup_Liquefaction |
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["United States","Oregon","Multnomah County","Department of Community Services","Land Use Planning","Liquefaction"] |
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en-US |
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500000 |
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