A 1.1 magnitude earthquake occurred right behind the site of the massive mudslide that decimated the community of Oso in Washington state on Saturday, officials have confirmed. Snohomish County emergency management director John Pennington said a search of recent records discovered the small earthquake struck on March 10.
It remains unclear what role, if any, the quake played in the slide, which struck two weeks later. Previously officials have blamed ground water saturation caused by heavy rain over the past month for the slide.
But Pennington said the risk of a slide in the area was well known and ever since a slide hit the area in 2006 officials have been warning people and homeowners were "very aware" of the risk.
Read extended report of the tragedy here
http://www.cbc.ca/news/canada/british-columbia/washington-state-mudslide-preceded-by-small-earthquake-1.2585733
RELATED
Scientific report that warned of danger of mudslide at that spot 15 years ago was ignored
http://ottersandsciencenews.blogspot.ca/2014/03/washington-mudslide-scientific-report.html
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