Saturday, April 26, 2008

Earthquake 4/26/08

http://earthquake.usgs.gov/

Today's Earthquake Fact
The core of the earth was the first internal structural element to be identified. In 1906 R.D. Oldham discovered the core from his studies of earthquake records. The inner core is solid, and the outer core is liquid and does not transmit the shear wave energy released during an earthquake.

You Tube

http://www.youtube.com/watch?v=19fMs633Td4

http://en.wikipedia.org/wiki/Earthquake

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