Yesterday, an earthquake hit Costa Rica near its capital, San Jose. The earthquake measured a magnitude of 7.6 and seismographs show that this earthquake shot up through parts of the United States. In the map, it shows the heavy vibration going straight up from Louisiana to Michigan and in parts of Southwest California. Of course, the magnitude decreased greatly and the the vibration is nowhere near strong enough for Americans to feel it. The ground is only moving a fraction of an inch, which is not enough for us to feel. However, seismographs that have been placed all the way up the Mississippi River recorded definite vibration, linking back to Costa Rica.
source:
http://www.msnbc.msn.com/id/48919027/ns/technology_and_science-science/#.UElEE81F4rE
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