PSN-L Email List Message

Subject: Re: earthquake activity in Indonesia
From: "tchannel" tchannel@............
Date: Fri, 13 Feb 2009 18:31:21 -0700


Hi Gary,  Where are you located?   I am in Idaho and the epicenter was 106 
degrees away.   So I was in the shadow zone between 104 and 140, for this 
earthquake and as a result I could not recieve either the P or S.

I did pick other phases, up here, but it was not much to look at.  I thought 
it was around a 6.8m just by looking at it.   So I was surrprised when they 
first called it a 7.5m then a 7.0 then a 7.2     Normally, I would see a 
bigger signature even if it was a 7.0m

The reporting is less then perfect........I was also supprise to see an 
earthquake here in Idaho,  posted on the USGS site two full days after the 
event.   Someone must have been out of town.

Thanks, Ted

----- Original Message ----- 
From: "Gary Lindgren" 
To: 
Sent: Friday, February 13, 2009 5:52 PM
Subject: RE: earthquake activity in Indonesia


> About that Indonesian 7.2 earthquake, I didn't pickup the initial P and S
> waves, but about 30 minutes or so later I pick up the response showing 16
> second sine waves. I assume this is the earth ringing like a bell. The
> seismometer is a 23 second Lehman, E-W.
> Gary
>
>
>
>
> -----Original Message-----
> From: psn-l-request@.............. [mailto:psn-l-request@............... 
> On
> Behalf Of Thomas Dick
> Sent: Thursday, February 12, 2009 8:03 AM
> To: psn-l@..............
> Subject: earthquake activity in Indonesia
>
> John Search is away. Anybody know whether is activity is volcanic 
> activity?
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