Dripping 'Blob' Under Western U.S.: A Hidden Drip, Drip, Drip Beneath Earth's Surface

Geologists find a 'blob' of material beneath the US West Great Basin. There are very few places in the world where dynamic activity taking place beneath Earth's surface goes undetected. Volcanoes, earthquakes, and even the sudden uplifting or sinking of the ground are all visible results of restlessness far below, but according to seismologists, dynamic activity deep beneath us isn't always expressed on the surface.

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