USA: Strange sounds in Indiana and Kentucky

January 8, 2013. Local residents have reported strange sounds similar to violent explosions. It is noted that the sounds of nature and the speaker have come from the atmosphere. In the U.S. Geological Survey (USGS) said they had not recorded seismic activity in the region. In the past few years, similar events are recorded worldwide. In some cases, witnesses heard sounds resembling sound pipe or grinding metal.

Source: FinalNews

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