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Are we monitoring the movements of the earth's crust?

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The goal is to detect any tectonic shift in the earth's crust in an attempt to factors leading to earthquakes. Many of these processes are still poorly understood and scientists hope that analyzing data gathered before and after earth movements will improve their knowledge base. read more

They also employ seismographs and satellites and geodolites, etc. They use these tools to measure the vertical and horizontal movements of tectonic plates or how the crust moves in response to earthquakes and volcanoes or how the land moves vertically due to the loss of weight from melting glaciers. read more

March 22, 2001 -- The same type of technology used by motorists to help them navigate city roadways can now be used to detect and measure the smallest movements in the Earth's crust, an international group of scientists, including a University of Toronto geophysicist, has found. read more

We didn't know the Earth had a crust until the early 1900s. Up until then, all we knew was that our planet wobbles in relation to the sky as if it had a large, dense core -- at least, astronomical observations told us so. Then along came seismology, which brought us a new type of evidence from below: seismic velocity. read more

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