Location of the earthquake (yellow star) and great circle path from the epicenter to each station (red) [created using GMT (Wessel, P., and W. H. F. Smith, New version of Generic Mapping Tools released, EOS Trans. AGU, 76 329, 1995.)]
2006/11/15 11:14:13 46.59 153.27 10
The following compares this source inversion to the USGS Rapid Moment Tensor Solution and to the Harvard CMT solutions, if they are available.
SLU Moment Tensor Solution
2006/11/15 11:14:13
Best Fitting Double Couple
Mo = 9.23e+27 dyne-cm
Mw = 7.91
Z = 40 km
Plane Strike Dip Rake
NP1 30 70 90
NP2 210 20 90
Principal Axes:
Axis Value Plunge Azimuth
T 9.23e+27 65 300
N 0.00e+00 -0 30
P -9.23e+27 25 120
Moment Tensor: (dyne-cm)
Component Value
Mxx -1.48e+27
Mxy 2.57e+27
Mxz 3.53e+27
Myy -4.45e+27
Myz -6.12e+27
Mzz 5.93e+27
--------------
-------##############-
------##################----
-----####################-----
-----######################-------
-----#######################--------
----########################----------
----#########################-----------
----######### ############------------
----########## T ###########--------------
----########## ##########---------------
----######################----------------
----#####################-----------------
---####################-----------------
---###################---------- -----
--##################----------- P ----
--###############------------- ---
--############--------------------
-##########-------------------
-######---------------------
#---------------------
--------------
Harvard Convention
Moment Tensor:
R T F
5.93e+27 3.53e+27 6.12e+27
3.53e+27 -1.48e+27 -2.57e+27
6.12e+27 -2.57e+27 -4.45e+27
|
06/11/15 11:14:16.76
KURIL ISLANDS
Epicenter: 46.683 153.224
MW 7.9
USGS MOMENT TENSOR SOLUTION
Depth 7 No. of sta: 92
Moment Tensor; Scale 10**20 Nm
Mrr= 3.58 Mtt=-4.14
Mpp= 0.56 Mrt= 6.36
Mrp= 4.16 Mtp=-1.87
Principal axes:
T Val= 8.23 Plg=58 Azm=316
N 0.94 8 60
P -9.17 31 155
Best Double Couple:Mo=8.7*10**20
NP1:Strike=270 Dip=16 Slip= 121
NP2: 58 76 81
-------
-----------------
-----###########-----
---###################---
---#######################---
--##########################-##
-######### ##############---#
-########## T ############------#
########### ##########---------
#####################------------
##################---------------
###############------------------
###########--------------------
#######------------ ---------
------------------ P --------
---------------- ------
---------------------
-----------------
-------
|
November 15, 2006, KURIL ISLANDS, MW=8.3
Meredith Nettles
Goran Ekstrom
CENTROID, MOMENT TENSOR SOLUTION
HARVARD EVENT-FILE NAME C111506A
DATA USED: GSN
L.P. BODY WAVES: 33S, 53C, T= 50
MANTLE WAVES: 79S,210C, T=200
CENTROID LOCATION:
ORIGIN TIME 11:15: 9.0 0.1
LAT 46.75N 0.01;LON 154.32E 0.01
DEP 13.4 0.6;HALF-DURATION 34.3
MOMENT TENSOR; SCALE 10**28 D-CM
MRR= 1.67 0.01; MTT=-0.51 0.01
MPP=-1.17 0.01; MRT= 1.57 0.11
MRP= 2.47 0.15; MTP=-0.77 0.00
PRINCIPAL AXES:
1.(T) VAL= 3.37;PLG=60;AZM=302
2.(N) 0.00; 0; 33
3.(P) -3.38; 30; 123
BEST DOUBLE COUPLE:M0=3.4*10**28
NP1:STRIKE=214;DIP=15;SLIP= 92
NP2:STRIKE= 33;DIP=75;SLIP= 90
-----------
----##############-
---#################---
---###################-----
---###################-------
---###################---------
--####### ##########---------
--######## T #########-----------
--######## ########------------
--#################--------------
--################---------------
-###############-------- ----
--#############--------- P ----
-###########----------- ---
-########------------------
-####------------------
#------------------
-----------
|
The following broadband stations passed the QC and were used for the source inversion. AAK AAM AFI AGMN AMTX ANMO ANTO ARU BBSR BFO BINY BLA BMO BRAL BRVK BW06 CART CBKS CBN CHTO CMB COCO COLA COR CSS CTAO DAV DGMT DSB DUG DWPF ECSD EGAK EGMT ESK EYMN FUNA GNI GRFO GUMO HAWA HKT HLID HNR HRV HUMO HWUT ISP JCT JFWS KBS KEV KIEV KIV KONO KSU1 KURK KVTX KWP LAO LBNH LOHW LTX MALT MBWA MCWV MNTX MOOW MORC MSO MVCO NCB NEW NWAO OBN OXF PAB PALK PKME PMG POHA PSZ RAR RGN RSSD SANT SAO SCIA SFJD SNOW SNZO SSPA STU SUMG SUW TATO TAU TLY TUC TZTN WLF WMOK WRAB WRAK WUAZ WVOR WVT
All observed and Greens function waveforms are corrected to instrument response to ground velocity in meters/sec for the passband of 0.004 - 5 Hz. The traces were then lowpass filtered at 0.25 Hz and interpolated to a sample rate of 1 second.
For the deviatoric moment tensor inversion, the observed traces and Green's functions are read in an cut using the following commands
#####
# Driver script for the teleseismic waveform inversion
#
# The depth HS must be of the form 0010 for a depth of 1.0 km
# of 6700 for a depth of 670.0 km
#
# The Filter_Band is an integer with the following meansing
#
# FILTER_BAND 1/FH 1/FL
# 1 60 12 for Mw < 6.4
# 2 100 20 6.4 =< Mw < 6.8
# 3 120 40 6.8 =< Mw < 7.2
# 4 143 80 7.2 =< Mw < 9.3
#####
# Source duration - halfwidth of triangular function
# this filters only the Green functions
#
# halfwidth = 1.05 * 10-8 * M0^1/3 (M0 is dyne-cm)
#
# MW half-width (sec)
# 5.0 0.75
# 6.0 2.45
# 7.0 7.7
# 8.0 24.5
# 9.0 74.3
# 0.5*(MW - 9)
# or half-width=74.3*10
# or echo 7.97 | awk '{print 74.3*exp(0.5*log(10.0)*(0200 - 9.0)) }'
#####
# Processing window for P (use SAC variable A for P arrival
# Start A - 30
# End A + 2*HALFWIDTH + 0.03*HS + 30 + 1/FH
# Processing window for SH (use SAC variable T0 for SH arrival
# Start T0 - 60
# End T0 + 2*HALFWIDTH + 0.06*HS + 30 + 1/FH
# Processing window for SV (use SAC variable T1 for SV arrival
# Start T1 - 60
# End T1 + 2*HALFWIDTH + 0.06*HS + 30 + 1/FH
#
# The term involving HS serves to include the depth phases and
# to exclude the PP or SS at most distanace
#####
The cut windows attempt to include the P, pP, sP, pS, S and sS arrivals. However, oen must be very careful about the fact that PP may be included in some distance ranges.
The waveforms are then bandpass filtered by the application of the following high- and low-pass stages (an optional microseism filter):
hp c 0.0070 2 lp c 0.0125 2 int br c 0.12 0.25 n 4 p 2The traces were next integrated to ground displacment in meters. Finally the observed data are interpolated to ahve the same sampling at the Green's functions.
The source inversion is a multipass operation since a lower frequency filter band is used for larger earthquakes and since a search is made over depth. Up to three passed of the outer loop are made, after which the moment magnitude is determined and filter settings readjusted. The inner loop over depth samples all depths from 0 to 800 km with 5 km increments in depth to 50 km, followed by 10 km depth sampling for the remaining range.
The following filter ranges are used according to the moment magnitude Mw:
FILTER_BAND 1/FH(s) 1/FL(s)
1 60 12 Mw < 6.4
2 100 20 6.4 < Mw <= 6.9
3 120 40 Mw > 6.9
The map displays the distribution of stations used for this source inversion.
|
Location of the earthquake (yellow star) and great circle path from the epicenter to each station (red) [created using GMT (Wessel, P., and W. H. F. Smith, New version of Generic Mapping Tools released, EOS Trans. AGU, 76 329, 1995.)] |
For this data set the favored solution is
WVFMTD96 20.0 36. 57. 96. 7.99 0.349 0.146E-03 0.549 0.782 0.535E-04 55.1
The following figures show the sensitivity of the goodness of fit parameter so source depth, the waveform comparison as a function of epicentral distance in degrees and the source to station azimuth
|
| Goodness of fit as a function of source depth. The measure is 1 - SUM (o -p)2 / SUM o2. A value of 1.0 is the best fit. The best double couple mechanism for the solution depth is plotted above goodness of fit value to indicate how the mefhanism may change with depth. |
| P-wave Z component |
|
| Comparison of the observed traces (red) and solution predicted traces (blue) ordered in terms of increasing epicentral distance. Each pair of traces is annotated with the station name, epicentral distance in degrees, source to station azimuth in degrees. Each pair of traces is plotted with the same scale and the peak amplitudes are indicated at the lect of each trace. Finally the time shift between the P-wave first arrival picked and the the theoretical P-wave first arrival in the predicted trace is indicated, with a positive sign indicating that the predicted trace has been shifted to the right by the given number of seconds. as a function of source to station azimuth in degrees (D). The purpose of this display is to highlight the azimuthal dependence on the first motion. The traces are annotated with the station name at the top. |
| SH-wave T component |
|
| Comparison of the observed traces (red) and solution predicted traces (blue) ordered in terms of increasing epicentral distance. Each pair of traces is annotated with the station name, epicentral distance in degrees, source to station azimuth in degrees. Each pair of traces is plotted with the same scale and the peak amplitudes are indicated at the lect of each trace. Finally the time shift between the P-wave first arrival picked and the the theoretical P-wave first arrival in the predicted trace is indicated, with a positive sign indicating that the predicted trace has been shifted to the right by the given number of seconds. as a function of source to station azimuth in degrees (D). The purpose of this display is to highlight the azimuthal dependence on the first motion. The traces are annotated with the station name at the top. |
| SV-wave R component |
|
| Comparison of the observed traces (red) and solution predicted traces (blue) ordered in terms of increasing epicentral distance. Each pair of traces is annotated with the station name, epicentral distance in degrees, source to station azimuth in degrees. Each pair of traces is plotted with the same scale and the peak amplitudes are indicated at the lect of each trace. Finally the time shift between the P-wave first arrival picked and the the theoretical P-wave first arrival in the predicted trace is indicated, with a positive sign indicating that the predicted trace has been shifted to the right by the given number of seconds. as a function of source to station azimuth in degrees (D). The purpose of this display is to highlight the azimuthal dependence on the first motion. The traces are annotated with the station name at the top. |
All observed and Greens function waveforms are corrected to instrument response to ground velocity in meters/sec for the passband of 0.004 - 5 Hz. The traces were then lowpass filtered at 0.25 Hz and interpolated to a sample rate of 1 second.
For the deviatoric moment tensor inversion, the observed traces and Green's functions are read in an cut using the following commands
#####
# Driver script for the teleseismic waveform inversion
#
# The depth HS must be of the form 0010 for a depth of 1.0 km
# of 6700 for a depth of 670.0 km
#
# The Filter_Band is an integer with the following meansing
#
# FILTER_BAND 1/FH 1/FL
# 1 60 12 for Mw < 6.4
# 2 100 20 6.4 =< Mw < 6.8
# 3 120 40 6.8 =< Mw < 7.2
# 4 143 80 7.2 =< Mw < 9.3
#####
# Source duration - halfwidth of triangular function
# this filters only the Green functions
#
# halfwidth = 1.05 * 10-8 * M0^1/3 (M0 is dyne-cm)
#
# MW half-width (sec)
# 5.0 0.75
# 6.0 2.45
# 7.0 7.7
# 8.0 24.5
# 9.0 74.3
# 0.5*(MW - 9)
# or half-width=74.3*10
# or echo 7.81 | awk '{print 74.3*exp(0.5*log(10.0)*(0150 - 9.0)) }'
#####
# Processing window for P (use SAC variable A for P arrival
# Start A - 30
# End A + 2*HALFWIDTH + 0.03*HS + 30 + 1/FH
# Processing window for SH (use SAC variable T0 for SH arrival
# Start T0 - 60
# End T0 + 2*HALFWIDTH + 0.06*HS + 30 + 1/FH
# Processing window for SV (use SAC variable T1 for SV arrival
# Start T1 - 60
# End T1 + 2*HALFWIDTH + 0.06*HS + 30 + 1/FH
#
# The term involving HS serves to include the depth phases and
# to exclude the PP or SS at most distanace
#####
The cut windows attempt to include the P, pP, sP, pS, S and sS arrivals. However, oen must be very careful about the fact that PP may be included in some distance ranges.
The waveforms are then bandpass filtered by the application of the following high- and low-pass stages (an optional microseism filter):
hp c 0.0070 2 lp c 0.0125 2 int br c 0.12 0.25 n 4 p 2The traces were next integrated to ground displacment in meters. Finally the observed data are interpolated to ahve the same sampling at the Green's functions.
The source inversion is a multipass operation since a lower frequency filter band is used for larger earthquakes and since a search is made over depth. Up to three passed of the outer loop are made, after which the moment magnitude is determined and filter settings readjusted. The inner loop over depth samples all depths from 0 to 800 km with 5 km increments in depth to 50 km, followed by 10 km depth sampling for the remaining range.
The following filter ranges are used according to the moment magnitude Mw:
FILTER_BAND 1/FH(s) 1/FL(s)
1 60 12 Mw < 6.4
2 100 20 6.4 < Mw <= 6.9
3 120 40 Mw > 6.9
The map displays the distribution of stations used for this source inversion.
Location of the earthquake (yellow star) and great circle path from the epicenter to each station (red) [created using GMT (Wessel, P., and W. H. F. Smith, New version of Generic Mapping Tools released, EOS Trans. AGU, 76 329, 1995.)] |
For this data set the favored solution is
WVFMTD96 15.0 29. 68. 99. 7.79 0.475 0.108E-04 0.494 0.723 0.953E-05 38.0
The following figures show the sensitivity of the goodness of fit parameter so source depth, the waveform comparison as a function of epicentral distance in degrees and the source to station azimuth
|
|
| Goodness of fit as a function of source depth. The measure is 1 - SUM (o -p)2 / SUM o2. A value of 1.0 is the best fit. The best double couple mechanism for the solution depth is plotted above goodness of fit value to indicate how the mefhanism may change with depth. |
| P-wave Z component |
|
| Comparison of the observed traces (red) and solution predicted traces (blue) ordered in terms of increasing epicentral distance. Each pair of traces is annotated with the station name, epicentral distance in degrees, source to station azimuth in degrees. Each pair of traces is plotted with the same scale and the peak amplitudes are indicated at the lect of each trace. Finally the time shift between the P-wave first arrival picked and the the theoretical P-wave first arrival in the predicted trace is indicated, with a positive sign indicating that the predicted trace has been shifted to the right by the given number of seconds. as a function of source to station azimuth in degrees (D). The purpose of this display is to highlight the azimuthal dependence on the first motion. The traces are annotated with the station name at the top. |
All observed and Greens function waveforms are corrected to instrument response to ground velocity in meters/sec for the passband of 0.004 - 5 Hz. The traces were then lowpass filtered at 0.25 Hz and interpolated to a sample rate of 1 second.
For the grid search, the observed traces and Green's functions are read in an cut using the following commands
#####
# Driver script for the teleseismic waveform inversion
#
# The depth HS must be of the form 0010 for a depth of 1.0 km
# of 6700 for a depth of 670.0 km
#
# The Filter_Band is an integer with the following meansing
#
# FILTER_BAND 1/FH 1/FL
# 1 60 12 for Mw < 6.4
# 2 100 20 6.4 =< Mw < 6.8
# 3 120 40 6.8 =< Mw < 7.2
# 4 143 80 7.2 =< Mw < 9.3
#####
# Source duration - halfwidth of triangular function
# this filters only the Green functions
#
# halfwidth = 1.05 * 10-8 * M0^1/3 (M0 is dyne-cm)
#
# MW half-width (sec)
# 5.0 0.75
# 6.0 2.45
# 7.0 7.7
# 8.0 24.5
# 9.0 74.3
# 0.5*(MW - 9)
# or half-width=74.3*10
# or echo 7.92 | awk '{print 74.3*exp(0.5*log(10.0)*(0400 - 9.0)) }'
#####
# Processing window for P (use SAC variable A for P arrival
# Start A - 30
# End A + 2*HALFWIDTH + 0.03*HS + 30 + 1/FH
# Processing window for SH (use SAC variable T0 for SH arrival
# Start T0 - 60
# End T0 + 2*HALFWIDTH + 0.06*HS + 30 + 1/FH
# Processing window for SV (use SAC variable T1 for SV arrival
# Start T1 - 60
# End T1 + 2*HALFWIDTH + 0.06*HS + 30 + 1/FH
#
# The term involving HS serves to include the depth phases and
# to exclude the PP or SS at most distanace
#####
The cut windows attempt to include the P, pP, sP, pS, S and sS arrivals. However, oen must be very careful about the fact that PP may be included in some distance ranges.
The waveforms are then bandpass filtered by the application of the following high- and low-pass stages (an optional microseism filter):
hp c 0.0070 2 lp c 0.0125 2 int br c 0.12 0.25 n 4 p 2The traces were next integrated to ground displacment in meters. Finally the observed data are interpolated to ahve the same sampling at the Green's functions.
The source inversion is a multipass operation since a lower frequency filter band is used for larger earthquakes and since a search is made over depth. Up to three passed of the outer loop are made, after which the moment magnitude is determined and filter settings readjusted. The inner loop over depth samples all depths from 0 to 800 km with 5 km increments in depth to 50 km, followed by 10 km depth sampling for the remaining range.
The following filter ranges are used according to the moment magnitude Mw:
FILTER_BAND 1/FH(s) 1/FL(s)
1 60 12 Mw < 6.4
2 100 20 6.4 < Mw <= 6.9
3 120 40 Mw > 6.9
The map displays the distribution of stations used for this source inversion.
Location of the earthquake (yellow star) and great circle path from the epicenter to each station (red) [created using GMT (Wessel, P., and W. H. F. Smith, New version of Generic Mapping Tools released, EOS Trans. AGU, 76 329, 1995.)] |
For this data set the favored solution is
WVFGRD96 40.0 30 70 90 7.91 0.6211
The following figures show the sensitivity of the goodness of fit parameter so source depth, the waveform comparison as a function of epicentral distance in degrees and the source to station azimuth
|
| Goodness of fit as a function of source depth. The measure is 1 - SUM (o -p)2 / SUM o2. A value of 1.0 is the best fit. The best double couple mechanism for the solution depth is plotted above goodness of fit value to indicate how the mefhanism may change with depth. |
| P-wave Z component |
|
| Comparison of the observed traces (red) and solution predicted traces (blue) ordered in terms of increasing epicentral distance. Each pair of traces is annotated with the station name, epicentral distance in degrees, source to station azimuth in degrees. Each pair of traces is plotted with the same scale and the peak amplitudes are indicated at the lect of each trace. Finally the time shift between the P-wave first arrival picked and the the theoretical P-wave first arrival in the predicted trace is indicated, with a positive sign indicating that the predicted trace has been shifted to the right by the given number of seconds. as a function of source to station azimuth in degrees (D). The purpose of this display is to highlight the azimuthal dependence on the first motion. The traces are annotated with the station name at the top. |
| SH-wave T component |
|
| Comparison of the observed traces (red) and solution predicted traces (blue) ordered in terms of increasing epicentral distance. Each pair of traces is annotated with the station name, epicentral distance in degrees, source to station azimuth in degrees. Each pair of traces is plotted with the same scale and the peak amplitudes are indicated at the lect of each trace. Finally the time shift between the P-wave first arrival picked and the the theoretical P-wave first arrival in the predicted trace is indicated, with a positive sign indicating that the predicted trace has been shifted to the right by the given number of seconds. as a function of source to station azimuth in degrees (D). The purpose of this display is to highlight the azimuthal dependence on the first motion. The traces are annotated with the station name at the top. |
| SV-wave R component |
|
| Comparison of the observed traces (red) and solution predicted traces (blue) ordered in terms of increasing epicentral distance. Each pair of traces is annotated with the station name, epicentral distance in degrees, source to station azimuth in degrees. Each pair of traces is plotted with the same scale and the peak amplitudes are indicated at the lect of each trace. Finally the time shift between the P-wave first arrival picked and the the theoretical P-wave first arrival in the predicted trace is indicated, with a positive sign indicating that the predicted trace has been shifted to the right by the given number of seconds. as a function of source to station azimuth in degrees (D). The purpose of this display is to highlight the azimuthal dependence on the first motion. The traces are annotated with the station name at the top. |
All observed and Greens function waveforms are corrected to instrument response to ground velocity in meters/sec for the passband of 0.004 - 5 Hz. The traces were then lowpass filtered at 0.25 Hz and interpolated to a sample rate of 1 second.
For the grid search, the observed traces and Green's functions are read in an cut using the following commands
#####
# Driver script for the teleseismic waveform inversion
#
# The depth HS must be of the form 0010 for a depth of 1.0 km
# of 6700 for a depth of 670.0 km
#
# The Filter_Band is an integer with the following meansing
#
# FILTER_BAND 1/FH 1/FL
# 1 60 12 for Mw < 6.4
# 2 100 20 6.4 =< Mw < 6.8
# 3 120 40 6.8 =< Mw < 7.2
# 4 143 80 7.2 =< Mw < 9.3
#####
# Source duration - halfwidth of triangular function
# this filters only the Green functions
#
# halfwidth = 1.05 * 10-8 * M0^1/3 (M0 is dyne-cm)
#
# MW half-width (sec)
# 5.0 0.75
# 6.0 2.45
# 7.0 7.7
# 8.0 24.5
# 9.0 74.3
# 0.5*(MW - 9)
# or half-width=74.3*10
# or echo 7.79 | awk '{print 74.3*exp(0.5*log(10.0)*(0100 - 9.0)) }'
#####
# Processing window for P (use SAC variable A for P arrival
# Start A - 30
# End A + 2*HALFWIDTH + 0.03*HS + 30 + 1/FH
# Processing window for SH (use SAC variable T0 for SH arrival
# Start T0 - 60
# End T0 + 2*HALFWIDTH + 0.06*HS + 30 + 1/FH
# Processing window for SV (use SAC variable T1 for SV arrival
# Start T1 - 60
# End T1 + 2*HALFWIDTH + 0.06*HS + 30 + 1/FH
#
# The term involving HS serves to include the depth phases and
# to exclude the PP or SS at most distanace
#####
The cut windows attempt to include the P, pP, sP, pS, S and sS arrivals. However, oen must be very careful about the fact that PP may be included in some distance ranges.
The waveforms are then bandpass filtered by the application of the following high- and low-pass stages (an optional microseism filter):
hp c 0.0070 2 lp c 0.0125 2 int br c 0.12 0.25 n 4 p 2The traces were next integrated to ground displacment in meters. Finally the observed data are interpolated to ahve the same sampling at the Green's functions.
The source inversion is a multipass operation since a lower frequency filter band is used for larger earthquakes and since a search is made over depth. Up to three passed of the outer loop are made, after which the moment magnitude is determined and filter settings readjusted. The inner loop over depth samples all depths from 0 to 800 km with 5 km increments in depth to 50 km, followed by 10 km depth sampling for the remaining range.
The following filter ranges are used according to the moment magnitude Mw:
FILTER_BAND 1/FH(s) 1/FL(s)
1 60 12 Mw < 6.4
2 100 20 6.4 < Mw <= 6.9
3 120 40 Mw > 6.9
The map displays the distribution of stations used for this source inversion.
Location of the earthquake (yellow star) and great circle path from the epicenter to each station (red) [created using GMT (Wessel, P., and W. H. F. Smith, New version of Generic Mapping Tools released, EOS Trans. AGU, 76 329, 1995.)] |
For this data set the favored solution is
WVFGRD96 10.0 200 30 80 7.78 0.6024
The following figures show the sensitivity of the goodness of fit parameter so source depth, the waveform comparison as a function of epicentral distance in degrees and the source to station azimuth
|
| Goodness of fit as a function of source depth. The measure is 1 - SUM (o -p)2 / SUM o2. A value of 1.0 is the best fit. The best double couple mechanism for the solution depth is plotted above goodness of fit value to indicate how the mefhanism may change with depth. |
| P-wave Z component |
|
| Comparison of the observed traces (red) and solution predicted traces (blue) ordered in terms of increasing epicentral distance. Each pair of traces is annotated with the station name, epicentral distance in degrees, source to station azimuth in degrees. Each pair of traces is plotted with the same scale and the peak amplitudes are indicated at the lect of each trace. Finally the time shift between the P-wave first arrival picked and the the theoretical P-wave first arrival in the predicted trace is indicated, with a positive sign indicating that the predicted trace has been shifted to the right by the given number of seconds. as a function of source to station azimuth in degrees (D). The purpose of this display is to highlight the azimuthal dependence on the first motion. The traces are annotated with the station name at the top. |
Starting Processing : Sat Apr 14 02:56:52 UTC 2007 Starting query to get files : Sat Apr 14 02:56:52 UTC 2007 Starting stareq for response: Sat Apr 14 03:07:09 UTC 2007 Starting deconvolution : Sat Apr 14 03:09:26 UTC 2007 Starting trace rotation : Sat Apr 14 03:10:58 UTC 2007 Starting distance selection : Sat Apr 14 03:11:23 UTC 2007 Starting trace QC : Sat Apr 14 03:11:33 UTC 2007 Starting MTD : Sat Apr 14 03:18:56 UTC 2007 Starting Grid Search : Sat Apr 14 03:44:16 UTC 2007