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Permalink Reply by Area Man on January 14, 2013 at 1:32pm

Unless something very much out of the ordinary occurred, definitely not.  Seismic (even using dynamite) should have little to no discernible impact on the surface.

Cheers,

-AreaMan

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Permalink Reply by Brian Powers on January 22, 2013 at 10:43am

Melissa -

When I was in college I was on a field trip to one of the large open pit coal mines in the Powder River Basin in NE Wyoming. We were standing maybe 1/4 mile from the coal face and witnessed a blast. A couple of seconds after the blast, we felt the shock waves through our boots.

 

It gave me a bit of a preview of what to expect when I lived in several earthquake prone zones during my working career. The strongest one I felt was a magnitude 7+ from about 300 miles north on the island of Martinique. I was on the Island of Trinidad, West Indies, and the ground shook there for more than a minute.

 

I could understand hearing blasting from approx. 10 miles distance, but I would be very surprised if seismic shot hole blast shock waves  would travel that distance without being attenuated by surface features such as ponds, creeks, heavily forested ares, etc.

 

Brian

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Permalink Reply by Jack Straw on January 22, 2013 at 3:02pm

 

With three Vibroseis trucks simultaneously vibrating, you might feel it through your feet if you are less than 200 -300 feet away. If you were to lay down on the ground within 50 feet, it would feel a bit like those old No-Tell Motel "Magic Fingers" Beds.  

If there is a Stone Quarry nearby or a major construction project that would require a massive explosive charge .. that is the likely culprit.

Nothing done in shooting a Seismic Survey (whether Vibrator Trucks or small explosicve charges in shot holes) should be felt or heard more that a few hundred feet from the source.

 

All IMHO,

                JS

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