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Institute of Geosciences

 
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Moment Tensor Solution

 
 
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2023-04-20 04:57:45.52 || 39.9943, 21.3836 || 14 km || 3.4 Mw

 

Event ID:

tir2023hrnr

Evaluation Mode:

automatic

Evaluation Status:

preliminary

 

Quality Metrics

 

Correlation:

DC (%):

Min Singular:

Max Singular:

0.15

26.30

6.659e-15

1.353e-14

Variance Reduction:

CLVD (%):

Condition Number:

0.02

73.70

2.03

Quality:

ISO (%):

STVAR:

FMVAR:

D3

0.00

0.18

28.60

 

Hypocenter

 
 

Centroid

 

Origin Time:

Latitude:

Depth:

2023-04-20 04:57:44.25

40.0345

10.0 km

Magnitude:

Longitude:

3.3 MLv

21.3846

Centroid Time:

Latitude:

Depth:

2023-04-20 04:57:45.52

39.9943

14.0 km

Magnitude:

Longitude:

Mo (Nm):

3.4 Mw

21.3836

1.312e+14

 

Used Stations

 

No of stations:

10

Azimuthal Gap (deg):

57.85

Min Distance (km):

9.0

Max Distance (km):

291.8

Frequencies (Hz):

0.05 - 0.08

tapered

0.04 - 0.05

and

0.08 - 0.09

 

Station

 

KZN

LSK

THL

AL07A

SRN

AL06A

LKD2

AL03A

VLS

NVR

 

N

 

-

0.87

-

-

-

0.01

0.48

-0.06

0.2

-0.14

 

E

 

0.62

0.62

-

0.14

-

-

-

-

-

-

 

Z

 

0.47

0.69

0.69

0.82

0.28

0.1

0.03

-0.01

-0.19

0.11

 

Distance (km)

 

45

68

75

113

119

139

152

209

217

255

 

Waveforms

 
 

4-D Moment Tensor Grid Search

 

Best Moment Tensor Solution

 

NP1

Strike:

192

Dip:

84

Rake:

167

NP2

Strike:

284

Dip:

77

Rake:

5

 

P-Axis

Azimuth:

239

Plunge:

5

T-Axis

Azimuth:

147

Plunge:

12

B-Axis

Azimuth:

351

Plunge:

76

 

Six Tensor

Mrr:

-4.587e+13

Mtt:

7.468e+13

Mpp:

-2.881e+13

Components

Mrt:

-3.496e+13

Mrp:

-2.628e+13

Mtp:

1.051e+14

Image

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