PSN-L Email List Message

Subject: Re: Software for locating local quakes/fracting
From: Thomas Dick dickthomas01@.............
Date: Fri, 16 Nov 2012 21:32:45 -0600


Thanks Larry,
I use Vase frequently to download files from USIN and even Wyandotte 
Cave seismic sites to compare to my Winquake files. The number of "small 
quakes" or fracking incidences is increasing locally and I get the 
feeling St. Louis and Memphis seismic centers aren't interested in 
following up on mag 1 and 2s
> The only software package that I know of that can locate events using 
> P wave picks is Earthworm.

I am very satisfied with Winquake. My main "squeeze" is wave form.
> It's free so anyone can use it. See http://www.isti2.com/ew/ for more 
> information. Version 7.6 was released just today. Information about my 
> EW installation can be found here http://www.seismicnet.com/ew/.
I downloaded the  documentation and will try to digest it. I am still 
learning the Vase program but I have learned to acquire data in 
particular time frames from specific sites and instruments. Earthworm 
may not be exactly what I had in mind. I understand triangulation.
>
> To locate events you need 4 or more stations centered around the area 
> of interest and be able to stream the data to one location running 
> Earthworm. I'm not sure if the data from the USArray is available in 
> real-time and available to any user? One place to look for real-time 
> data is here http://www.iris.edu/data/dmc-seedlink.htm. They might be 
> rebroadcasting the data from the USArray to anyone needing the data.
I see some USArray data on St. Louis (Central US network and New 
Madrid). Even without the array sites (only about 4 operational here 
right now), I have over 20 sites to chose from using the New Madrid, 
Kentucky USGS and IU network sites. I have imposed on the St. Louis (New 
Madrid) seismologists to locate a quake for me a couple of times but I 
realized I need to climb to new challenges.  Thanks
>


  
    
  
  
    Thanks Larry,
I use Vase frequently to download files from USIN and even Wyandotte Cave seismic sites to compare to my Winquake files. The number of "small quakes" or fracking incidences is increasing locally and I get the feeling St. Louis and Memphis seismic centers aren't interested in following up on mag 1 and 2s

The only software package that I know of that can locate events using P wave picks is Earthworm.

I am very satisfied with Winquake. My main "squeeze" is wave form.
It's free so anyone can use it. See http://www.isti2.com/ew/ for more information. Version 7.6 was released just today. Information about my EW installation can be found here http://www.seismicnet.com/ew/.
I downloaded the  documentation and will try to digest it. I am still learning the Vase program but I have learned to acquire data in particular time frames from specific sites and instruments. Earthworm may not be exactly what I had in mind. I understand triangulation.

To locate events you need 4 or more stations centered around the area of interest and be able to stream the data to one location running Earthworm. I'm not sure if the data from the USArray is available in real-time and available to any user? One place to look for real-time data is here http://www.iris.edu/data/dmc-seedlink.htm. They might be rebroadcasting the data from the USArray to anyone needing the data.
I see some USArray data on St. Louis (Central US network and New Madrid). Even without the array sites (only about 4 operational here right now), I have over 20 sites to chose from using the New Madrid, Kentucky USGS and IU network sites. I have imposed on the St. Louis (New Madrid) seismologists to locate a quake for me a couple of times but I realized I need to climb to new challenges.  Thanks



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