PSN-L Email List Message
Subject: Okhotsk quake
From: Steinar Midtskogen steinar@.............
Date: Mon, 24 Nov 2008 15:25:27 +0100
Today's 7.0 Okhotsk quake was recorded by my SEP seismometer. Not a
huge signal, but clear enough.
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
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.
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