PSN-L Email List Message

Subject: Re: Suggestion for a seismograph program
From: Angel sismos@..............
Date: Tue, 31 Jan 2006 20:07:47 +0000

Hello Jón,

I think that that is an admirable endeavor to start on but most of
what you describe there has already be done by several groups and at
least two of them are in the public domain and free.

I think that it would be far easier to write the missing modules for
the core Earthworm system than to reinvent something that already works
well and is in wide use.

Right now you can take the data from the PSN serial card (and others)
and go directly into Earthworm or Seiscomp over a TCP/IP and in either
of those systems you can do most of the things you list.

Jon, you can find more information for the two systems I mention at
these URLs:



Tuesday, January 31, 2006, 6:02:28 PM, you wrote:

> Hi all

> I plan to write a linux / *nix compatable program for working out data
> from a psn station. I currently don't know how to program in C++ or
> other programming languages (nothign useful anyway), but i plan to learn
> it on my own. But i will need suggestions and help with that prodect. I
> will have this program of mine in GPL licenace when the time comes.

> Here is what i have planned so far, and plan to put this in a Open
> Office document soon (and pdf).

> * The program is in two parts, server (datalogging) (gui optimcal) and
> client (working on the data, only gui). Both parts will have networks
> abliti (communication over lan or the internet). I will define this part
> better later on.
> * Automatic magnitue calculation, from one or many stations.
> * Network and Internet abilty. Both to remote connect stations into one
> or more server.
> * Low and hig pass digital filtering, along side with raw data mode
> (setup of many windows as needed). This is can be done on the client,
> that actually displays the data as it gets send from the server program.
> * Post prosessing of earthquakes.
> * Automatic detection of earthquakes, and removal of envromental noise.
> * Webserver abilti. This is going to be detailed later.
> * Map abliti, for more then three station. But also for location of
> earthquakes if remote data is used. For example time and location data
> used from emsc-cmes and others.
> * GPS timeing and location. Timeing also awable trugh the internet by
> using ntp (ntp client) will then have to be installed if used.
> * Hig resultion details of earthquakes. More detail on this later.
> * Wide support of hardware, both from psn and others.
> * Tremor plot in a window on user defined freq.
> * Telesemic earthquake detection. Local earthquake detection.


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