Laserfiche WebLink
Eugene -Springfield Area Natural Hazards Mitigation Plan <br />2. Hazard Descriptions <br />ILebenuniireen <br />"y1{ <br />11 <br />i JNkrso �^mr <br />MZg°n9rd +• <br />Chi <br />20-Foerer <br />LaAr �. <br />\{ <br />°Z <br />22 <br />✓ <br />9] <br />Lake <br />South Sanrinm Bli <br />L <br />_ <br />Sunni - <br />Caseetlie -- 20 <br />4n1 <br />Winear. <br />to <br />Boma <br />er. <br />n.9 <br />Tun Rome <br />4u/A••, <br />I. <br />r l <br />°. Ra Slelm 126 <br />,1 <br />- lei, cr <br />Can., <br />Redmond <br />742 <br />At <br />is <br />BelNnep <br />20 <br />Er ` <br />Bnd,. <br />rldpe <br />Springs _. — �Ndnh <br />57 <br />Vitle Blue Riser <br />Hn� <br />- - <br />2A�'OMiddK <br />Three <br />j <br />a+'?s <br />Ritrr rp ' <br />re Mae, <br />Sisters <br />�f Isouth <br />lea <br />Volaana Hazard Zones <br />_ <br />Tirmala LreeRe <br />Bead <br />Springfield <br />Near-Volsanalar4 lava flows <br />�antl �laVd <br />- <br />1.thel <br />ponpoolsflpaS hOmu¢n¢ <br />tiFlurAILaAf <br />ahop51iCIlOwS, <br />ldick0pgra.ahirs, dbpWsedbeeaaen <br />j <br />58 <br />OalhstC ejects. rods fall major wlWnces <br />E2A Gdr Wuaanr <br />LAWBB <br />Letters Vcicenic sett <br />- - eernrloi <br />V <br />�Te <br />ealtlaho Ino(9epWlll:fine <br />potentials farirawlled in Iragmems ofwlwns <br />,� so <br />Ldnknkr <br />P'rJVF <br />wile, draining Volcano andoomeddoWnwhN <br />Reran»ir <br />A,_ <br />92 <br />Caorentand graphics <br />3 emrl s 10 Mlles <br />(_'ra praiye <br />pmrenres olMarch, P014 <br />R <br />A <br />Usm <br />a 5 10 Kilometers <br />ada <br />Le <br />Figure 2-10. Source: USGS 2014 —Three Sisters, Oregon simplified hazards map showing potential <br />impact area for ground -based hazards during a volcanic incident. <br />httns://voleanoes.uses.eov/volcanoes/three sisters/three sisters hazard 98.html <br />2.8.4 Impacts — Cascading Incidents <br />Civil Unrest <br />Civil unrest is not a significant impact of a volcanic incident for the Eugene or <br />Springfield area. <br />Dam or Levee Failure <br />Dam failure is not a significant impact of a volcanic incident for the Eugene or <br />Springfield area since all major dams or levees are outside of the predicted lahar <br />flow. Additionally, there are no historical records of such an incident occurring. <br />Epidemics <br />The risk of communicable diseases after a volcanic incident is deemed moderate for <br />person to person, water born, and food born modes of transmission. The data is <br />largely collected from undeveloped countries in which volcanic incidents displaced <br />large populations. Due to the limited implications of a volcanic incident for the <br />Eugene -Springfield area the risk of epidemics arising from such an incident is also <br />limited. The most significant threat would be if the McKenzie River's use as a <br />drinking water source were no longer viable. <br />2-55 January 2020 <br />