Sunday, May 8, 2016

"'Swarm' Of Earthquakes Shake Mount St Helens"

"
Most of the tremors are less than 0.5 in magnitude and the largest was 1.3 - rumbling about 1.2 to four miles beneath the surface.
Although the quakes are relatively small, it is the frequency that is concerning scientists...."
http://news.sky.com/story/1692352/swarm-of-earthquakes-shake-mount-st-helens

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