I'm curious how many of you have come up with a "rule of thumb" for the 
general sensitivity of your seismometers.

For instance I have sensed a 3.0 sixty miles out from my seismometer, 
and have seen 5s within 300 miles.
And I understand we should be able to sense a 7 anywhere in the world.
But just now, I did not see a 1.3  seven miles out.
So my question.... is this good, bad, average?
I'm sure there are lots of variables such as type of instrument, 
orientation, ambient noise, etc..
but still, shouldn't there be a general feeling or rule of thumb.

Jan in Gilroy



  


I'm curious how many of you have come
up with a "rule of thumb" for the general sensitivity of your
seismometers.



For instance I have sensed a 3.0 sixty miles out from my seismometer,
and have seen 5s within 300 miles.

And I understand we should be able to sense a 7 anywhere in the world.

But just now, I did not see a 1.3  seven miles out.

So my question.... is this good, bad, average? 

I'm sure there are lots of variables such as type of instrument,
orientation, ambient noise, etc.. 

but still, shouldn't there be a general feeling or rule of thumb.



Jan in Gilroy