PSN-L Email List Message

Subject: Re: LQ LR Time Travel Tables
From: Larry Cochrane lcochrane@..............
Date: Wed, 27 Mar 2013 12:13:09 -0700


Hi Tiago,

I'm not sure why you are seeing this discrepancy. All of the *.jb tables used by 
WinQuake use the same format. Does WinQuake produce the same LQ and LR times as you 
program or the USGS numbers?

Regards,
Larry Cochrane
Webtronics

On 3/27/2013 8:39 AM, Tiago A. wrote:
> Hi.
>
> Ive been developing a online "Interactive Time Travel" for some time, P and S tables
> works pretty close (need to tune up somethings)..but cant get LQ and LR times match
> USGS Time Travel Calculator, example:
>
> Todays Taiwan Eq, (+-) 111 deg.
>
> My Tool:
> LQ 3522s 03:02:02
> LR 4025s 03:10:25
>
> USGS
>
> LQ 2824.90s 02:50:24
> LR 3135.24s 02:55:35
>
> Im using P.jb, S.jb, LQ.jb and LR.jb tables found in WinQuake, if i go to the LQ.jb
> table and locate depth:20km ; 111deg, i found:3494s, which is pretty close to my
> tool, but far for USGS results (and realistic results), to match USGS results ive to
> look to 90deg corresponding to 2827s.
>
> Does LQ.jb and LR.jb tables differ from P.jb and S.jb tables?
> Does anyone have clue where can be the problem?
>
> Best Regards,
> Tiago.
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