Yep... we're simply visually monitoring earth movements on a drum 
recorder, including but not limited to earthquakes.
I have a four foot long drum recorder at Gilroy Gardens Theme Park here 
in Gilroy CA,  and people from all around come just to see what 
earthquakes look like.  They are amazed we can actually see ocean 
activity 15 miles away and are mesmerized watching the pen movement. 

I had the option of either going with a computerized digital seismograph 
display or a drum recorder... the drum recorder won hands down for 
public viewing.

I've always found Dave's data base extremely useful when explaining 
about the PSN and the world wide connection of this amateur seismic 
group.  I for one really appreciate Dave's work... Thanks Dave!

Jan in Gilroy CA



Thomas Dick wrote:
>
> Here I go again, showing my ignorance...... Just what does this mean?  
> In this day and age of digital verses analog, filtrating of 
> frequencies, short period versas long period and maybe even paper 
> seismograms --what are these people doing??? Please take this right. I 
> am trying to get a clear picture. Are they just visually monitoring 
> for earthquakes?
>
>>
>> You are knocking something that has been VERY useful to many people 
>> for some 15 years   :)
>
> No, Dave, I did not want my remarks to infer that I am "knocking" what 
> you are doing. I am trying to understand what you have. I cannot 
> criticize what I don't understand. But your dialogue allows 
> communication and better understanding as to whether/why I would want 
> to post information on the database.
>
>>
> Maybe this dialog can help others in the same experience level as I. 
> Please --- keep up the work!
>
> Yours, just plain Tom
>



  


Yep... we're simply visually monitoring earth movements
on a drum recorder, including but not limited to earthquakes.

I have a four foot long drum recorder at Gilroy Gardens Theme Park here
in Gilroy CA,  and people from all around come just to see what
earthquakes look like.  They are amazed we can actually see ocean
activity 15 miles away and are mesmerized watching the pen movement.  



I had the option of either going with a computerized digital
seismograph display or a drum recorder... the drum recorder won hands
down for public viewing.



I've always found Dave's data base extremely useful when explaining
about the PSN and the world wide connection of this amateur seismic
group.  I for one really appreciate Dave's work... Thanks Dave!



Jan in Gilroy CA







Thomas Dick wrote:


Here I go again, showing my ignorance...... Just what does this mean? 
In this day and age of digital verses analog, filtrating of
frequencies, short period versas long period and maybe even paper
seismograms --what are these people doing??? Please take this right. I
am trying to get a clear picture. Are they just visually monitoring for
earthquakes?
  

  

  


You are knocking something that has been VERY useful to many people for
some 15 years   :)
    

  
  

No, Dave, I did not want my remarks to infer that I am "knocking" what
you are doing. I am trying to understand what you have. I cannot
criticize what I don't understand. But your dialogue allows
communication and better understanding as to whether/why I would want
to post information on the database.
  

  

  


  
Maybe this dialog can help others in the same experience level as I.
Please --- keep up the work!
  

  

Yours, just plain Tom