Another consideration is the substrate=2E Here I sit on erosional limest=
one sediments=2C even some glacial drift and sediments from river deposi=
ts from upstream=2E It is more than 100ft to bedrock within 50 mile radi=
us of Evansville=2C IN--farther to the west=2E If I remember=2C your are=
a is predominately metamorphic=2C more compacted and less overburden The=
se differencs in composition affect anticipated speed of travel of earth=
quake waves particularly over short distances=2E

----- Original Message -----
From=3A Larry Conklin =3Clconklin=40twcny=2Err=2Ecom=3E
Date=3A Monday=2C September 20=2C 2010 21=3A58
Subject=3A Re=3A Winquake phase pics for regional events
To=3A psnlist=40webtronics=2Ecom

=3E =A0 Well=2C I understand that the phase pics that Winquake sets =

=3E will not =

=3E always be dead on accurate=2E=A0 My main concern was that =

=3E Winquake =22doesn=27t =

=3E quite agree with itself=22=2E=A0 That is=2C the lines that can be =

=3E turned on with =

=3E the Phases button do not exactly match the positions of the =

=3E phase =

=3E picking arrows that can be turned on with the P/S button=2C and =

=3E the time =

=3E differences indicated by the two sets of markers are not quite =

=3E the =

=3E same=2E=A0 I have assumed that the distance estimate that =

=3E Winquake generates =

=3E is based on the position of the arrows=2C and that if I want to =

=3E attempt to =

=3E identify the P/S onsets manually=2C it is the arrows I should be =

=3E using=2C =

=3E rather than the phase lines that are controlled by the Phases =

=3E button=2E=A0 =

=3E It=27s all pretty academic anyway=2C since you really have to expand=
 =

=3E to a =

=3E very short time interval to even notice the discrepancy=2E
=3E =

=3E Larry
=3E =

=3E =

=3E On 9/20/2010 7=3A46 PM=2C Thomas Dick wrote=3A
=3E =3E Larry=2C sitting over here near the New Madrid and Mt Carmel =

=3E faults I =

=3E =3E have notice that here too=2E I learned to use the Regional table=
 =

=3E and =

=3E =3E then NOT put too much faith on arrival times=2E I think I had a =

=3E multiple =

=3E =3E comment thread several years ago in which this was discussed =

=3E in =

=3E =3E detail=2E I even uploaded my Winquake file and Univ of Southern =

=3E Indiana =

=3E =3E files through Vase as comparision=2E I even used satellite time=2E=
 =

=3E I was =

=3E =3E told these tables were averages=2C not written in stone=2C and =

=3E variations =

=3E =3E are to be expected over shorter distances=2E
=3E =3E
=3E =3E Larry Conklin wrote=3A
=3E =3E=3E=A0 I recorded a couple of small events the other day=2C a =

=3E 2=2E9 followed =

=3E =3E=3E shortly by a 2=2E7=2C at a distance of around 200 miles=2E=A0=
 I =

=3E noticed that =

=3E =3E=3E when I turn on the P and S phase marker lines in Winquake=2C =

=3E they don=27t =

=3E =3E=3E line up with the P and S phase markers (ie=2E the veritical =

=3E arrows)=2E=A0 =

=3E =3E=3E The amount of discrepancy depends on which table I select=2C =

=3E and isn=27t =

=3E =3E=3E all that great unless I really zoom in tight=2E
=3E =3E=3E
=3E =3E=3E So=2C two questions=2E=A0 Why the difference=3F=A0 And which =

=3E should I use to =

=3E =3E=3E estimate the distance to the event=2C the arrows or the phase=
 =

=3E lines=3F=A0 =

=3E =3E=3E (Not that it really makes much difference=2C since I usually =

=3E have a lot =

=3E =3E=3E of uncertainty where the phase onsets are anyway=2E)
=3E =3E=3E
=3E =3E=3E Larry Conklin
=3E =3E=3E Liverpool=2C NY
=3E =3E=3E =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
=3E =3E=3E
=3E =3E=3E Public Seismic Network Mailing List (PSNLIST)
=3E =3E=3E
=3E =3E=3E To leave this list email PSNLIST-REQUEST=40SEISMICNET=2ECOM w=
ith =

=3E the body =

=3E =3E=3E of the message (first line only)=3A unsubscribe
=3E =3E=3E See http=3A//www=2Eseismicnet=2Ecom/maillist=2Ehtml for more =
information=2E
=3E =3E=3E
=3E =3E
=3E =3E =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
=3E =3E
=3E =3E Public Seismic Network Mailing List (PSNLIST)
=3E =3E
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 =

=3E the body =

=3E =3E of the message (first line only)=3A unsubscribe
=3E =3E See http=3A//www=2Eseismicnet=2Ecom/maillist=2Ehtml for more inf=
ormation=2E
=3E =3E
=3E =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
=3E =

=3E Public Seismic Network Mailing List (PSNLIST)
=3E =

=3E To leave this list email PSNLIST-REQUEST=40SEISMICNET=2ECOM with =

=3E the body of the message (first line only)=3A unsubscribe
=3E See http=3A//www=2Eseismicnet=2Ecom/maillist=2Ehtml for more informa=
tion=2E
=3E 
Another consideration is the substrate=2E Here I sit on erosional limest=
one sediments=2C even some glacial drift and sediments from river deposi=
ts from upstream=2E It is more than 100ft to bedrock within 50 mile radi=
us of Evansville=2C IN--farther to the west=2E If I remember=2C your are=
a is predominately metamorphic=2C more compacted and less overburden The=
se differencs in composition affect anticipated speed of travel of earth=
quake waves particularly over short distances=2E=3Cbr=3E=3Cbr=3E----- Or=
iginal Message -----=3Cbr=3EFrom=3A Larry Conklin =26lt=3Blconklin=40twc=
ny=2Err=2Ecom=26gt=3B=3Cbr=3EDate=3A Monday=2C September 20=2C 2010 21=3A=
58=3Cbr=3ESubject=3A Re=3A Winquake phase pics for regional events=3Cbr=3E=
To=3A psnlist=40webtronics=2Ecom=3Cbr=3E=3Cbr=3E=26gt=3B =26nbsp=3B Well=
=2C I understand that the phase pics that Winquake sets =3Cbr=3E=26gt=3B=
 will not =3Cbr=3E=26gt=3B always be dead on accurate=2E=26nbsp=3B My ma=
in concern was that =3Cbr=3E=26gt=3B Winquake =22doesn=27t =3Cbr=3E=26gt=
=3B quite agree with itself=22=2E=26nbsp=3B That is=2C the lines that ca=
n be =3Cbr=3E=26gt=3B turned on with =3Cbr=3E=26gt=3B the Phases button =
do not exactly match the positions of the =3Cbr=3E=26gt=3B phase =3Cbr=3E=
=26gt=3B picking arrows that can be turned on with the P/S button=2C and=
 =3Cbr=3E=26gt=3B the time =3Cbr=3E=26gt=3B differences indicated by the=
 two sets of markers are not quite =3Cbr=3E=26gt=3B the =3Cbr=3E=26gt=3B=
 same=2E=26nbsp=3B I have assumed that the distance estimate that =3Cbr=3E=
=26gt=3B Winquake generates =3Cbr=3E=26gt=3B is based on the position of=
 the arrows=2C and that if I want to =3Cbr=3E=26gt=3B attempt to =3Cbr=3E=
=26gt=3B identify the P/S onsets manually=2C it is the arrows I should b=
e =3Cbr=3E=26gt=3B using=2C =3Cbr=3E=26gt=3B rather than the phase lines=
 that are controlled by the Phases =3Cbr=3E=26gt=3B button=2E=26nbsp=3B =
=3Cbr=3E=26gt=3B It=27s all pretty academic anyway=2C since you really h=
ave to expand =3Cbr=3E=26gt=3B to a =3Cbr=3E=26gt=3B very short time int=
erval to even notice the discrepancy=2E=3Cbr=3E=26gt=3B =3Cbr=3E=26gt=3B=
 Larry=3Cbr=3E=26gt=3B =3Cbr=3E=26gt=3B =3Cbr=3E=26gt=3B On 9/20/2010 7=3A=
46 PM=2C Thomas Dick wrote=3A=3Cbr=3E=26gt=3B =26gt=3B Larry=2C sitting =
over here near the New Madrid and Mt Carmel =3Cbr=3E=26gt=3B faults I =3C=
br=3E=26gt=3B =26gt=3B have notice that here too=2E I learned to use the=
 Regional table =3Cbr=3E=26gt=3B and =3Cbr=3E=26gt=3B =26gt=3B then NOT =
put too much faith on arrival times=2E I think I had a =3Cbr=3E=26gt=3B =
multiple =3Cbr=3E=26gt=3B =26gt=3B comment thread several years ago in w=
hich this was discussed =3Cbr=3E=26gt=3B in =3Cbr=3E=26gt=3B =26gt=3B de=
tail=2E I even uploaded my Winquake file and Univ of Southern =3Cbr=3E=26=
gt=3B Indiana =3Cbr=3E=26gt=3B =26gt=3B files through Vase as comparisio=
n=2E I even used satellite time=2E =3Cbr=3E=26gt=3B I was =3Cbr=3E=26gt=3B=
 =26gt=3B told these tables were averages=2C not written in stone=2C and=
 =3Cbr=3E=26gt=3B variations =3Cbr=3E=26gt=3B =26gt=3B are to be expecte=
d over shorter distances=2E=3Cbr=3E=26gt=3B =26gt=3B=3Cbr=3E=26gt=3B =26=
gt=3B Larry Conklin wrote=3A=3Cbr=3E=26gt=3B =26gt=3B=26gt=3B=26nbsp=3B =
I recorded a couple of small events the other day=2C a =3Cbr=3E=26gt=3B =
2=2E9 followed =3Cbr=3E=26gt=3B =26gt=3B=26gt=3B shortly by a 2=2E7=2C a=
t a distance of around 200 miles=2E=26nbsp=3B I =3Cbr=3E=26gt=3B noticed=
 that =3Cbr=3E=26gt=3B =26gt=3B=26gt=3B when I turn on the P and S phase=
 marker lines in Winquake=2C =3Cbr=3E=26gt=3B they don=27t =3Cbr=3E=26gt=
=3B =26gt=3B=26gt=3B line up with the P and S phase markers (ie=2E the v=
eritical =3Cbr=3E=26gt=3B arrows)=2E=26nbsp=3B =3Cbr=3E=26gt=3B =26gt=3B=
=26gt=3B The amount of discrepancy depends on which table I select=2C =3C=
br=3E=26gt=3B and isn=27t =3Cbr=3E=26gt=3B =26gt=3B=26gt=3B all that gre=
at unless I really zoom in tight=2E=3Cbr=3E=26gt=3B =26gt=3B=26gt=3B=3Cb=
r=3E=26gt=3B =26gt=3B=26gt=3B So=2C two questions=2E=26nbsp=3B Why the d=
ifference=3F=26nbsp=3B And which =3Cbr=3E=26gt=3B should I use to =3Cbr=3E=
=26gt=3B =26gt=3B=26gt=3B estimate the distance to the event=2C the arro=
ws or the phase =3Cbr=3E=26gt=3B lines=3F=26nbsp=3B =3Cbr=3E=26gt=3B =26=
gt=3B=26gt=3B (Not that it really makes much difference=2C since I usual=
ly =3Cbr=3E=26gt=3B have a lot =3Cbr=3E=26gt=3B =26gt=3B=26gt=3B of unce=
rtainty where the phase onsets are anyway=2E)=3Cbr=3E=26gt=3B =26gt=3B=26=
gt=3B=3Cbr=3E=26gt=3B =26gt=3B=26gt=3B Larry Conklin=3Cbr=3E=26gt=3B =26=
gt=3B=26gt=3B Liverpool=2C NY=3Cbr=3E=26gt=3B =26gt=3B=26gt=3B =5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=3Cbr=3E=26gt=3B =26gt=3B=26gt=3B=3Cbr=3E=26gt=3B =26=
gt=3B=26gt=3B Public Seismic Network Mailing List (PSNLIST)=3Cbr=3E=26gt=
=3B =26gt=3B=26gt=3B=3Cbr=3E=26gt=3B =26gt=3B=26gt=3B To leave this list=
 email PSNLIST-REQUEST=40SEISMICNET=2ECOM with =3Cbr=3E=26gt=3B the body=
 =3Cbr=3E=26gt=3B =26gt=3B=26gt=3B of the message (first line only)=3A u=
nsubscribe=3Cbr=3E=26gt=3B =26gt=3B=26gt=3B See http=3A//www=2Eseismicne=
t=2Ecom/maillist=2Ehtml for more information=2E=3Cbr=3E=26gt=3B =26gt=3B=
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