PSN-L Email List Message

Subject: Re: The Earth is Ringing
From: "Kay Wyatt" kwyatt@.............
Date: Fri, 11 Mar 2011 17:33:53 -0800


My favorite poster on this topic is located at
http://www.unavco.org/community_science/science_highlights/2010/M8.8-Chil=
e_RC_2010_8.8.pdf
It really does show how the earth rings like a bell!
Kay Wyatt


  ----- Original Message -----=20
  From: Gary Lindgren=20
  To: psnlist@.................
  Sent: Friday, March 11, 2011 5:17 PM
  Subject: The Earth is Ringing


  After 19 hours the earth's ring is starting to subside. I measure a =
period of about 240 seconds or so. Is that the period of the earth's =
natural frequency. All day my vertical seismometer's most sensitive =
output has been ringing like a bell. It's difficult to see through the =
output of the initial M8.9 quake and all the aftershocks.

  Gary

  =20

  =20

  =20

  =20

  =20

  =20

  =20

  =20

  Gary Lindgren

  585 Lincoln Ave

  Palo Alto CA 94301

  =20

  650-326-0655

  =20

  www.blue-eagle-technologies.com   Check out Lastest Seismometer =
Reading

  cymonsplace.blogspot.com=20

  sites.google.com/site/seismicsensorinfo/Home    Design Details for New =
Vertical Seismometer=20

  =20

  =20







My favorite poster on this topic is located=20 at
http://www.unavco.org/community_science/scienc= e_highlights/2010/M8.8-Chile_RC_2010_8.8.pdf
It really does show how the earth rings like a=20 bell!
Kay Wyatt
 
 
----- Original Message -----
From:=20 Gary=20 Lindgren
To: psnlist@.............. =
Sent: Friday, March 11, 2011 = 5:17=20 PM
Subject: The Earth is = Ringing

After 19 hours the earth's ring is starting to = subside. I=20 measure a period of about 240 seconds or so. Is that the period of the = earth's=20 natural frequency. All day my vertical seismometer's most sensitive = output has=20 been ringing like a bell. It's difficult to see through the output of = the=20 initial M8.9 quake and all the aftershocks.

Gary

 

 

 

 

 

 

 

 

Gary=20 Lindgren

585=20 Lincoln Ave

Palo=20 Alto CA 94301

 

650-326-0655

 

www.blue-eagle-technologies.com  =20 Check out Lastest Seismometer=20 Reading

cymonsplace.blogspot.com 

sites.google.com/site/seismicsensorinfo/Home  =  =20 Design Details for New Vertical Seismometer=20

 

 


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