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Institute of Geosciences

 
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Moment Tensor Solution

 
 
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2023-07-23 18:04:20.84 || 40.1025, 20.8674 || 40 km || 3.9 Mw

 

Event ID:

tir2023oigx

Evaluation Mode:

automatic

Evaluation Status:

preliminary

 

Quality Metrics

 

Correlation:

DC (%):

Min Singular:

Max Singular:

0.71

93.30

1.654e-16

2.133e-15

Variance Reduction:

CLVD (%):

Condition Number:

0.50

6.70

12.90

Quality:

ISO (%):

STVAR:

FMVAR:

C1

0.00

0.15

5.01

 

Hypocenter

 
 

Centroid

 

Origin Time:

Latitude:

Depth:

2023-07-23 18:04:20.53

40.1534

10.0 km

Magnitude:

Longitude:

2.5 MLv

20.8665

Centroid Time:

Latitude:

Depth:

2023-07-23 18:04:20.84

40.1025

40.0 km

Magnitude:

Longitude:

Mo (Nm):

3.9 Mw

20.8674

7.497e+14

 

Used Stations

 

No of stations:

2

Azimuthal Gap (deg):

241.15

Min Distance (km):

79.7

Max Distance (km):

186.6

Frequencies (Hz):

0.05 - 0.08

tapered

0.04 - 0.05

and

0.08 - 0.09

 

Station

 

KZN

PHP

 

N

 

0.53

-

 

E

 

-

-

 

Z

 

-

0.02

 

Distance (km)

 

80

174

 

Waveforms

 
 

4-D Moment Tensor Grid Search

 

Best Moment Tensor Solution

 

NP1

Strike:

78

Dip:

2

Rake:

0

NP2

Strike:

168

Dip:

89

Rake:

-90

 

P-Axis

Azimuth:

75

Plunge:

44

T-Axis

Azimuth:

260

Plunge:

44

B-Axis

Azimuth:

168

Plunge:

2

 

Six Tensor

Mrr:

-7.814e+12

Mtt:

-2.677e+13

Mpp:

3.458e+13

Components

Mrt:

-1.505e+14

Mrp:

7.338e+14

Mtp:

-3.059e+12

Image

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