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.... Another source of ground motion is the transfer of atmospheric acoustic energy into seismic energy at the Earth’s surface. Infrasound (low frequency sound below ~20 Hz) can travel great distances unattenuated in atmospheric ducts created by layers of slow sound speed. The infrasound wave field is rich due to a variety of anthropogenic and geophysical phenomena including earthquakes, volcanoes, landslides, meteors, lightning and sprites, auroras, and oceanic and atmospheric processes.
It just feels to me like something of the earth.
Several energy companies have begun work in the area to explore the shale formation and drill for natural gas based on findings indicating a potentially large supply of gas trapped within some portions of the shale.
The most active areas have been Caddo, Bienville, Bossier, DeSoto, Red River and Webster Parishes
Originally posted by StealthyKat
reply to post by don rumsfeld
Right...that's what I was referring to...the Haynesville Shale deposit. I don't care if it's mundane... I would just love to know what I'm hearing. It was scary so I WANT it to be mundane I wonder what kind of schedule they do this on though....I heard it in June, July, September and then just recently (December 11 I think), so not on a regular basis.