I too had a close event the other day. The event was a MD2.2 right here in
Redwood City. The non felt event was ~ 4km or ~2 miles from me. I think this
is the closes event I have ever recorded. I was lucky to record it on all of
my sensors. I just got done with rearranging my station. The even happened
only 15 minutes after I got my system back on line.

Recently I added a second channel based on the IDS3052 accelerometer chip.
This channel is oriented vertically and it recorded the event very nicely.
The event file is  011027.0618.lctsz.psn.

Here's an update on the new accelerometer sensor board based on the IDS3052
chip. I hope to be selling it soon. I completed the PC board layout last
week. I should be getting 10 PC boards in a few days. Once I verify that the
board works, I will be sending out a email message to the list as well as
make a web page documenting the new product.

-Larry Cochrane
Redwood City, PSN

----- Original Message -----
From: "ian" 
To: 
Sent: Monday, October 29, 2001 6:35 PM
Subject: close event


> I've just been "rocked" by a 3.1 1.5 miles from my sensor.  I didn't
> feel anything and the trace superficially looks like surface noise.
>
> I've uploaded the event, 011029.1942.hl0.psn.  I'm puzzled by such a
> close event of moderate strength going by so un-noticed.
>
> I Smith
>
>
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