Strange Sounds
© News Channel Nebraska
Nebraska City residents in the Greggsport Addition are used to hearing trains whistle through the night, but sounds recorded at 11:34 p.m. on Feb. 21 were more akin to the mysterious Sounds of the Apocalypse circulating on the Internet and social media sites.

YouTube posts since 2011 have captured mysterious noises, some seeming to come from the sky. Reports of eerie trumpet sounds have been posted from around the world, including the Philippines, Australia, Germany, Russia and the United States.

Snopes.com reports that the US Geological Survey experts note that unusual sounds can be attributed to deep earthquakes and waves crashing into distant cliffs. While the sounds are expected to have an earthly origin, some scientist say atmospheric noise can also be caused by meteor flashes and acoustic gravity waves.

Click below to hear a sound recorded at Riverview Park in Nebraska City Sunday night. It is 1 minute and 50 seconds long. There is a train whistle at 45 seconds, otherwise it is just the trumpet blast.