Although measurement techniques surrounding earthquakes have improved enormously over the last few decades, it has remained very difficult to measure changes in the crust that could enable earthquake prediction.
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Background noise from the earth can provide a wealth of information about the earth's crust, which for example can then be used when searching for new oil fields. Researchers from TU Delft have tested this relatively new discovery in a desert in the Middle East. The seismic noise measurements have shown that the theory also works in practice. An article by PhD candidate Deyan Draganov about this research subject has been published in Geophysical Research Letters.
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The proper processing of acoustic noise can provide a wealth of information. Geophysicists for example have used seismic background noise measurements to reconstruct the crustal structure under Southern California.
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