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Institute of Geosciences

 
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Moment Tensor Solution

 
 
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2023-09-18 05:17:36.85 || 38.9299, 21.0600 || 22 km || 3.8 Mw

 

Event ID:

tir2023shlh

Evaluation Mode:

automatic

Evaluation Status:

preliminary

 

Quality Metrics

 

Correlation:

DC (%):

Min Singular:

Max Singular:

0.21

35.10

5.417e-15

1.028e-14

Variance Reduction:

CLVD (%):

Condition Number:

0.04

64.90

1.90

Quality:

ISO (%):

STVAR:

FMVAR:

D3

0.00

0.11

17.76

 

Hypocenter

 
 

Centroid

 

Origin Time:

Latitude:

Depth:

2023-09-18 05:17:35.58

38.8897

10.0 km

Magnitude:

Longitude:

3.7 MLv

21.0596

Centroid Time:

Latitude:

Depth:

2023-09-18 05:17:36.85

38.9299

22.0 km

Magnitude:

Longitude:

Mo (Nm):

3.8 Mw

21.0600

6.140e+14

 

Used Stations

 

No of stations:

8

Azimuthal Gap (deg):

157.15

Min Distance (km):

36.6

Max Distance (km):

314.8

Frequencies (Hz):

0.05 - 0.08

tapered

0.04 - 0.05

and

0.08 - 0.09

 

Station

 

LKD2

VLS

IGT

THL

KZN

NEST

THE

PLG

 

N

 

0.49

0.35

0.2

-0.43

-

-1.64

-0.24

0.1

 

E

 

0.88

-0.19

0.15

-

-0.71

-0.24

-

0.02

 

Z

 

-

0.67

0.77

0.68

0.41

-1.18

0.01

0.0

 

Distance (km)

 

37

89

95

111

169

169

253

263

 

Waveforms

 
 

4-D Moment Tensor Grid Search

 

Best Moment Tensor Solution

 

NP1

Strike:

327

Dip:

70

Rake:

36

NP2

Strike:

224

Dip:

56

Rake:

156

 

P-Axis

Azimuth:

93

Plunge:

9

T-Axis

Azimuth:

190

Plunge:

38

B-Axis

Azimuth:

351

Plunge:

49

 

Six Tensor

Mrr:

2.964e+14

Mtt:

3.661e+14

Mpp:

-6.626e+14

Components

Mrt:

-1.091e+14

Mrp:

1.706e+14

Mtp:

-7.430e+13

Image

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