PSN-L Email List Message

Subject: Re: Earthquake 2008-06-27
From: Steinar Midtskogen steinar@.............
Date: Fri, 27 Jun 2008 20:57:43 +0200


John Lahr  writes:

> Nice recording!
>
> You can use this on-line site to compute the expected arrival times of various
> phases to your station:
> http://neic.usgs.gov/neis/travel_times/index.html
>
> This can help in interpretation.

For my location (60.0N 10.7E) I got:

              travel   arrival time
    #  code      time(s)  dy hr mn sec
    1  P          704.23   0 11 52  1
    2  PKiKP     1049.62   0 11 57 46
    3  S         1285.99   0 12  1 42
    4  SKSac     1311.44   0 12  2  8
    5  LQ        1932.02   0 12 12 29
    6  LR        2144.27   0 12 16  1

Pretty neat.  My station recorded the first rise at 11:52.  The next
event happens at 12:02, and the really big rumble begins 12:20 and
lasts 20 minutes.  So the "P" seems dead on, while the next events
showed up a bit belated.

> Also, once you have saved the seismogram in .sac format you can use
> AmaSeis as an analysis tool.

I'll look into that format as well.  Is there a way to convert between
..psn to .sac?

-- 
Steinar Midtskogen
http://voksenlia.net
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