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Full tensors solutions

Agency: GFZ

Content-Length: 1212

GFZ Event gfz2021qcpu
21/08/18 02:48:53.78
South Sandwich Islands Region
Epicenter: -59.73 -26.36
MW 5.8

GFZ MOMENT TENSOR SOLUTION
Depth  40         No. of sta: 55
Moment Tensor;   Scale 10**17 Nm
  Mrr= 5.57       Mtt=-0.33
  Mpp=-5.24       Mrt= 0.43
  Mrp=-0.65       Mtp=-2.16
Principal axes:
  T  Val=  5.66  Plg=82  Azm= 38
  N        0.41       6      200
  P       -6.07       2      290

Best Double Couple:Mo=5.9*10**17
 NP1:Strike=193 Dip=47 Slip=  80
 NP2:        27     43       100
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Analysis performed manually
Last updated 2021-08-18 06:46:14 UTC


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Agency: GCMT

Content-Length: 1446


Here is the solution for the recent event.

August 18, 2021, SOUTH SANDWICH ISLANDS REGION, MW=5.8

Howard Koss

CENTROID-MOMENT-TENSOR  SOLUTION
GCMT EVENT:     C202108180248A  
DATA: II IU CU MN G  IC GE DK LD
 KP 
L.P.BODY WAVES:144S, 293C, T= 40
MANTLE WAVES:   83S, 111C, T=125
SURFACE WAVES: 152S, 312C, T= 50
TIMESTAMP:      Q-20210818064151
CENTROID LOCATION:
ORIGIN TIME:      02:49:02.1 0.1
LAT:59.94S 0.01;LON: 25.70W 0.01
DEP: 41.7  0.3;TRIANG HDUR:  2.0
MOMENT TENSOR: SCALE 10**24 D-CM
RR= 4.570 0.055; TT= 1.170 0.047
PP=-5.740 0.045; RT=-1.320 0.057
RP= 2.880 0.058; TP=-2.800 0.037
PRINCIPAL AXES:
1.(T) VAL=  6.181;PLG=60;AZM=217
2.(N)       1.011;    27;     11
3.(P)      -7.192;    11;    107
BEST DBLE.COUPLE:M0= 6.69*10**24
NP1: STRIKE=227;DIP=41;SLIP= 134
NP2: STRIKE=355;DIP=62;SLIP=  59

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Agency: IPGP

Status: RO

2021 08 18 02 48 56.0 -59.699 -26.134 40.0 5.9 215 40 118 360 55 68

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Agency: CPPT

Content-Length: 2275


Mw=5.9, South Sandwich Islands
Event Time: 2021-08-18 02:48:53 UTC
Epicenter : 59.650S  26.373W 12.0km
Centroid  : 59.850S  26.175W 60.5km

CENTROID-MOMENT-TENSOR  SOLUTION
AUTO WPHASE INVERSION - 0T+35MIN 
CPPT EVENT:     C202108180248A
DATA: II IU C G BL BR   
TIMESTAMP:      Q-20210818032404
WPHASE WAVES:   32S,  38C, T= 50
CENTROID LOCATION:
ORIGIN TIME:      02:48:53.7 0.0
LAT:59.85S 0.00;LON: 26.17W 0.00
DEP: 60.5  0.0;TRIANG HDUR:  9.0
MOMENT TENSOR: SCALE 10**25 D-CM
RR= 0.404 0.000; TT= 0.182 0.000
PP=-0.586 0.000; RT=-0.364 0.000
RP= 0.480 0.000; TP=-0.323 0.000
PRINCIPAL AXES:
1.(T) VAL=  0.899;PLG=49;AZM=214
2.(N)      -0.087;    35;    358
3.(P)      -0.811;    18;    101
BEST DBLE.COUPLE:M0= 8.55*10**24 
NP1: STRIKE=232;DIP=41;SLIP= 152
NP2: STRIKE=345;DIP=72;SLIP=  53

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# ADDITIONAL INFORMATIONS :
Inversion completed successfully (x3)
Grid search over xyz performed (x2)
Event ID      : cppt2021qcpu
Scalar moment : 8.55e+17 N.m
Stations used : 38
Phases used   : 38
RMS misfit    : 0.493 
Azimuthal gap : 113.5 deg
Min. distance :  7.7 deg
Max. distance : 63.5 deg
BP filter     : 50 s - 150 s
Time shift    : 9 s 
Half duration : (= Time shift)
RMS screening :  5.0  3.0  0.9
P2P screening :  0.1  3.0
Author        : scwphase@amethyste
Provided by CPPT :
   Centre Polynesien de Prevention des Tsunamis
   (French Polynesian Tsunami Warning Center)
   CEA/DASE/Laboratoire de Geophysique
   BP.640 - 98713 - Papeete - Tahiti
   French Polynesia

Note: These results are currently evaluated by fully automated process.
      Users should be advised to use and interpret these products with caution.

=====================================================================================================

Agency: USGS

Status: RO


>From mt@emsc-csem.org

USGS
2021-08-18T02:49:02.100Z
Epicenter: -59.7829 -25.6534
Magnitude: M 5.8
Depth: 40.5
NP1:Strike=224 Dip=38 Slip=129
NP2:Strike=358 Dip=61 Slip=63
Mo: 5.65e+17 Nm
Moment Tensor; Scale 10**17 Nm
Mrr= 4.15        Mtt= 0.39
Mpp= -4.55        Mrt= -1.14
Mrp= 2.66        Mtp= -2.13

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