They also crushed rocks with specially engineered weak points to hear the sound of different types of fault failures, which will aid in early detection of an induced earthquake.ģD printing variability provides fundamental structural information Sandia geoscientists studied how pressure and stress from injecting water can transfer through pores in rocks down to fault lines, including previously hidden ones. Of course, energy companies do their due diligence to check for faults-breaks in the earth's upper crust that are prone to earthquakes-but sometimes earthquakes, even swarms of earthquakes, strike unexpectedly. Injecting water underground after unconventional oil and gas extraction, commonly known as fracking, geothermal energy stimulation and carbon dioxide sequestration all can trigger earthquakes.
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