Yes, I noticed that too from the USGS post: "M-type="Nuttli" surface wave 
magnitude (mbLg), Version=7."  But,
I was still concerned about MY post.  That area has recently has numerous 
shallow events.
Thanks Thomas.
Jerry
  ----- Original Message ----- 
  From: Thomas Dick
  To: psn-l@..............
  Sent: Friday, February 26, 2010 9:54 AM
  Subject: Re: Help me LEARN


  GPayton wrote:
  > After reading many posts on the PSN Net, it is obvious that I know
  > very little as compared to MANY of you out there.   I am often
  > embarrassed to ask a question and turn to the books to try to resolve
  > my question(s).  Even at that, many time I fall short.
  >
  > So!  Question:
  >
  >     1)    Today's trace of the 3.1 event in Oklahoma  displays
  > in WinQuake that both the *Pb* & *Sb* were seconds *_BEFORE_* the *P*
  > & *S* times.  To me, that seems like I get a bouncing ball BEFORE I
  > actually drop it!  What did I do wrong?  Is this a matter of the
  > "tables" being off?  Or, am I wrong in assuming it is incorrect?
  >
  >     2)    Another "pause" that I have when using WinQuake of any event
  > is HOW LONG to plot it.  Obviously, a local event would be short, a
  > regional would be a little longer and a teleseismic may be over an
  > hour.  But, I was wondering IF there was a rule-of-thumb time that you
  > experienced people use?
  >
  > Thanks & Best regards,
  > Jerry
  According to the St. Louis network
  > _http://folkworm.ceri.memphis.edu/recenteqs/Quakes/quakes0.html_
  , this quake was not a good one ... they rated it as poor. I have
  followed their analysis faithfully and such a rate makes for some poor
  readings of the incoming times of wave types.
  __________________________________________________________

  Public Seismic Network Mailing List (PSN-L)

  To leave this list email PSN-L-REQUEST@.............. with
  the body of the message (first line only): unsubscribe
  See http://www.seismicnet.com/maillist.html for more information.







Yes, I noticed that too from the USGS post: "M-type=3D"Nuttli" =
surface wave=20
magnitude (mbLg), Version=3D7."  But,
I was still concerned about MY post.  That area has recently =
has=20
numerous shallow events.  
Thanks Thomas.
Jerry

  
----- Original Message ----- 
  From:=20
  Thomas Dick 
  
To: psn-l@.............. 
  
Sent: Friday, February 26, 2010 =
9:54=20
  AM
  
Subject: Re: Help me =
LEARN
  

GPayton wrote:
> After reading many posts on the =
PSN Net,=20
  it is obvious that I know 
> very little as compared to MANY of =
you out=20
  there.   I am often 
> embarrassed to ask a question =
and turn=20
  to the books to try to resolve 
> my question(s).  Even at =
that,=20
  many time I fall short.
>  
> So! =20
  Question:
>  
>     =
1)   =20
  Today's trace of the 3.1 event in Oklahoma  displays 
> in =
WinQuake=20
  that both the *Pb* & *Sb* were seconds *_BEFORE_* the *P* 
> =
&=20
  *S* times.  To me, that seems like I get a bouncing ball BEFORE I =

  
> actually drop it!  What did I do wrong?  Is this a =
matter=20
  of the 
> "tables" being off?  Or, am I wrong in assuming =
it is=20
  incorrect?
>  
>     =
2)   =20
  Another "pause" that I have when using WinQuake of any event 
> =
is HOW=20
  LONG to plot it.  Obviously, a local event would be short, a =

>=20
  regional would be a little longer and a teleseismic may be over an =

>=20
  hour.  But, I was wondering IF there was a rule-of-thumb time =
that you=20
  
> experienced people use?
>  
> Thanks & =
Best=20
  regards,
> Jerry
According to the St. Louis network
>=20
  _http://folkworm.ceri.memphis.edu/recenteqs/Quakes/quakes0.html_
, =
this=20
  quake was not a good one ... they rated it as poor. I have =

followed their=20
  analysis faithfully and such a rate makes for some poor 
readings =
of the=20
  incoming times of wave=20
  =
types.
__________________________________________________________
<=
BR>Public=20
  Seismic Network Mailing List (PSN-L)

To leave this list email =
PSN-L-REQUEST@...............
=20
  with 
the body of the message (first line only): unsubscribe
See =
http://www.seismicnet.co=
m/maillist.html=20
  for more information.