PSN-L Email List Message

Subject: Missing clear S wave from local event
From: "Tiago A." tiagoagre@.........
Date: Thu, 20 Dec 2012 21:33:29 -0100


*Geoff* *gmvoeth@............
*
Did anyone mention that S waves dont travel throgh liquids like lava
chambers
or Liquid Outer Cores ? They can chang from P to S and back again but loose
energy at each and every velocity boundary.

*Hi. That was my first thought, but even if the lava chamber is the reason,
is it so big and the material so liquid to change dramatically the
earthquake recording?

The official arrival times for the CMLA station are:

 P       2012/10/12 04:11:07.6
 S       2012/10/12 04:11:10.1
 A       2012/10/12 04:11:12.6

The origin time is: 04:11:05.5 (4.4km depth)

Image of location of stations and eq epicenter
http://dl.dropbox.com/u/15802004/12_10_2012.jpg

Thanks.

Best Regards

Geoff gmvoet= h@...........

Did anyone mention that S waves dont= travel throgh liquids like lava chambers
or Liquid Outer Cores ? They can chang from P to S and back again but loose
energy at each and every velocity boundary.

Hi. That was my = first thought, but even if the lava chamber is the reason, is it so big and= the material so liquid to change dramatically the earthquake recording?
The official arrival times for the CMLA station are:

 P       2012/10/12 04:11:07.6
 S       2012/10/12 04:11:10.1
 A       2012/10/12 04:11:12.6    

The origin time is: 04:11:05.5 (4= ..4km depth)

Image of location of stations and eq epicenter
http://dl.dropbox.com= /u/15802004/12_10_2012.jpg

Thanks.

Best Regards




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