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Institute of Geosciences

 
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Moment Tensor Solution

 
 
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2023-04-22 20:38:26.13 || 37.0087, 28.5069 || 2 km || 4.0 Mw

 

Event ID:

tir2023hwjr

Evaluation Mode:

automatic

Evaluation Status:

preliminary

 

Quality Metrics

 

Correlation:

DC (%):

Min Singular:

Max Singular:

0.92

57.10

6.033e-16

5.645e-15

Variance Reduction:

CLVD (%):

Condition Number:

0.85

42.90

9.36

Quality:

ISO (%):

STVAR:

FMVAR:

D2

0.00

0.21

64.15

 

Hypocenter

 
 

Centroid

 

Origin Time:

Latitude:

Depth:

2023-04-22 20:38:21.54

37.0071

10.0 km

Magnitude:

Longitude:

4.6 mb

28.5998

Centroid Time:

Latitude:

Depth:

2023-04-22 20:38:26.13

37.0087

2.0 km

Magnitude:

Longitude:

Mo (Nm):

4.0 Mw

28.5069

1.034e+15

 

Used Stations

 

No of stations:

4

Azimuthal Gap (deg):

174.07

Min Distance (km):

127.0

Max Distance (km):

956.9

Frequencies (Hz):

0.05 - 0.08

tapered

0.04 - 0.05

and

0.08 - 0.09

 

Station

 

AKAS

KZN

KPRO

BARS

 

N

 

0.93

-0.56

-

-0.02

 

E

 

0.77

-0.03

-0.0

-

 

Z

 

-

0.01

-0.04

-0.07

 

Distance (km)

 

129

693

707

862

 

Waveforms

 
 

4-D Moment Tensor Grid Search

 

Best Moment Tensor Solution

 

NP1

Strike:

305

Dip:

53

Rake:

-75

NP2

Strike:

101

Dip:

38

Rake:

-109

 

P-Axis

Azimuth:

262

Plunge:

75

T-Axis

Azimuth:

24

Plunge:

7

B-Axis

Azimuth:

116

Plunge:

11

 

Six Tensor

Mrr:

-1.039e+15

Mtt:

7.656e+14

Mpp:

2.732e+14

Components

Mrt:

1.244e+14

Mrp:

-3.626e+14

Mtp:

-2.306e+14

Image

🄯 Gisola - More info https://github.com/nikosT/Gisola