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Officials warn Cascadia quake planning may be overwhelmed; county estimates differ from older state figures
Summary
Panelists told a Senate informational hearing that Cascadia Subduction Zone models and local assessments show potentially catastrophic impacts that would quickly overwhelm local response; county and regional studies show higher or differing casualty and displacement estimates than older statewide figures.
Senators and emergency managers at a May 27 informational hearing discussed the scale of a potential Cascadia Subduction Zone earthquake and the limitations of current planning data.
John Wheeler, manager of Washington County Emergency Management, cited a March 2018 Portland-Metro loss-estimation study that estimates about 14% building loss for the metro area, roughly 38,000 long-term displaced people in Washington County and about 8,000 casualties under that…
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