What about a sonic boom from a meteor??  Say from somewhere around south 
Baja passing over Texas up through Ohio and maybe on through and back 
out into space???   What else would create  approx. the same size trace 
from Texas to Ohio with early times in Arizona, (about 08:06 UTC) later 
times in Texas, then Ohio and finally Maine, (about 08:23 UTC)???   And 
be small in magnitude, but recorded in most of the USA and into Central 
America???  Just a wild guess???
  Stephen 

Jerry Payton wrote:
> Most all these helicorders record a short event (explosion??) in that 
> time frame.
> http://aslwww.cr.usgs.gov/Seismic_Data/heli2_us.shtml
>  
> Jerry Payton



  


What about a sonic boom from a meteor??=A0 Say from=

somewhere around south Baja passing over Texas up through Ohio and
maybe on through and back out into space???=A0=A0 What else would create=A0=

approx. the same size trace from Texas to Ohio with early times in
Arizona, (about 08:06 UTC) later times in Texas, then Ohio and finally
Maine, (about 08:23 UTC)??? =A0 And be small in magnitude, but recorded
in most of the USA and into Central America???=A0 Just a wild guess???
=A0 Stephen=A0 



Jerry Payton wrote:

  
  
  
  
Most all these helicorders record a=

short event (explosion??) in that time frame.
  
http://as=
lwww.cr.usgs.gov/Seismic_Data/heli2_us.shtml
  
=A0
  
Jerry Payton