PSN-L Email List Message
Subject: Re: Okhotsk quake
Date: Tue, 25 Nov 2008 19:10:36 -0000 (UTC)
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.
> 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
> Public Seismic Network Mailing List (PSN-L)
> To leave this list email PSN-L-REQUEST@.............. with
> the body of the message (first line only): unsubscribe
> See http://www.seismicnet.com/maillist.html for more information.
Public Seismic Network Mailing List (PSN-L)
[ Top ]
[ Back ]
[ Home Page ]