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Institute of Geosciences

 
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Moment Tensor Solution

 
 
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2023-08-28 11:12:21.11 || 37.5774, 22.4875 || 2 km || 4.0 Mw

 

Event ID:

tir2023qvnk

Evaluation Mode:

automatic

Evaluation Status:

preliminary

 

Quality Metrics

 

Correlation:

DC (%):

Min Singular:

Max Singular:

0.13

51.40

2.439e-15

9.660e-15

Variance Reduction:

CLVD (%):

Condition Number:

0.02

48.60

3.96

Quality:

ISO (%):

STVAR:

FMVAR:

D2

0.00

0.01

61.71

 

Hypocenter

 
 

Centroid

 

Origin Time:

Latitude:

Depth:

2023-08-28 11:12:19.52

37.6792

10.0 km

Magnitude:

Longitude:

4.3 MLv

22.4893

Centroid Time:

Latitude:

Depth:

2023-08-28 11:12:21.11

37.5774

2.0 km

Magnitude:

Longitude:

Mo (Nm):

4.0 Mw

22.4875

9.586e+14

 

Used Stations

 

No of stations:

7

Azimuthal Gap (deg):

217.71

Min Distance (km):

176.0

Max Distance (km):

683.2

Frequencies (Hz):

0.05 - 0.08

tapered

0.04 - 0.05

and

0.08 - 0.09

 

Station

 

VLS

LKD2

THL

KZN

PLG

THE

KARB

 

N

 

0.47

-0.74

0.03

0.04

-

-

0.18

 

E

 

-

-0.13

-0.04

-0.11

-

0.01

-

 

Z

 

-0.19

-

-0.01

0.01

0.01

-

-

 

Distance (km)

 

176

202

213

298

310

330

361

 

Waveforms

 
 

4-D Moment Tensor Grid Search

 

Best Moment Tensor Solution

 

NP1

Strike:

109

Dip:

2

Rake:

133

NP2

Strike:

245

Dip:

88

Rake:

88

 

P-Axis

Azimuth:

337

Plunge:

43

T-Axis

Azimuth:

153

Plunge:

46

B-Axis

Azimuth:

245

Plunge:

1

 

Six Tensor

Mrr:

1.934e+14

Mtt:

-1.379e+13

Mpp:

-1.796e+14

Components

Mrt:

-8.411e+14

Mrp:

-3.959e+14

Mtp:

1.409e+14

Image

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