PSN-L Email List Message
Subject: Re: Damping Resistor - D Saum
From: "David Saum" DSaum@............
Date: Thu, 16 Feb 2012 12:11:36 -0500 (EST)
> From: chrisatupw@.......
> Date: Tue, 14 Feb 2012 04:16:46 -0500 (EST)
>
> Thanks for your interesting claims. I would be even more interested
> to
> receive either a circuit of some digital files of your output for a
> large
> quake and a comparable professional broad band seismometer for the same
> event.
Thanks to Bob McClure I was able to access usgs seismometer data from
the Fredericksburg, VA site about 50 miles from my location
Here is 40 minutes of data from a large quake about 64 degrees distance
Magnitude 7.2 - FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA
2011 June 24 03:09:40 UTC
http://earthquake.usgs.gov/earthquakes/eqinthenews/2011/usc0004f5m/
QM-4.5LV geophone system data near Washington, DC(~80kb):
http://www.infiltec.com/seismo/110624a.sac
USGS seismometer near Fredericksburg, VA data files:
ftp://ftp.iris.washington.edu/pub/userdata/David_Saum/CBN_2011_Aleutian_7_3/
I am not sure how long my data will remain on the IRIS server
Bob McClure's long period filter is built into AmaSeis and when I
apply it to my data using the default parameters (4.5/0.5/16) it does
a nice job in scaling my data to look more like relative amplitudes
in the Fredericksburg data.
Cheers,
Dave
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