Hi

The signal from this earthquake did also appear on my sensor in Iceland.
Both on hvt sensor and hkb sensor far as I can tell. I will send in the
trace later on, when I have finish school.

Regards.
Jón Frímann.


> Today's 7.0 Okhotsk quake was recorded by my SEP seismometer.  Not a
> huge signal, but clear enough.
>
> Sac-file: http://voksenlia.net/nytt/2008/jordskjelv-20081124.sac
> PNG image: http://voksenlia.net/nytt/2008/jordskjelv-20081124.png
>
> However, what's a bit surprising is that at the exact same time of the
> arrival of the P wave my 4.5 Hz geophone recorded something pretty
> strong as well for a few minutes.  Mostly in the Z direction but
> clearly in the other directions as well.
>
> Sac-file Z: http://voksenlia.net/nytt/2008/jordskjelv_z-20081124.sac
> PNG image Z: http://voksenlia.net/nytt/2008/jordskjelv_z-20081124.png
> Sac-file N: http://voksenlia.net/nytt/2008/jordskjelv_n-20081124.sac
> Sac-file E: http://voksenlia.net/nytt/2008/jordskjelv_e-20081124.sac
>
> Will a quake nearly 7000 km away every show up on a 4.5 Hz geophone?
> Or could a distant quake trigger a small local quake?  Or are the
> events unrelated?
>
> Since this happened in daytime, and it's a bit windy outside today
> also, there is quite a bit of noise, but the quakes are clear enough.
>
> --
> Steinar Midtskogen
> http://voksenlia.net/met/
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