1906 San Francisco Earthquake. Photo Credit: US National Oceanic and Atmospheric Administration
By Theresa Ann White
North America is shaking. This moment, earthquakes with a 3.5 or less magnitude are popping up across the nation. This activity is monitored by a network of agencies headed up by the US Department of the Interior.
Read more at Suite101: The Ground is Shaking: Earthquake Activity in the U.S. http://www.suite101.com/content/the-ground-is-shaking-earthquake-activity-in-the-us-a333825#ixzz1BNiKe7JZ
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