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Institute of Geosciences

 
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Moment Tensor Solution

 
 
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2023-04-10 00:21:42.32 || 37.8271, 22.3013 || 30 km || 4.1 Mw

 

Event ID:

tir2023gyxn

Evaluation Mode:

automatic

Evaluation Status:

preliminary

 

Quality Metrics

 

Correlation:

DC (%):

Min Singular:

Max Singular:

0.13

14.60

1.280e-15

3.764e-15

Variance Reduction:

CLVD (%):

Condition Number:

0.02

85.40

2.94

Quality:

ISO (%):

STVAR:

FMVAR:

D4

0.00

0.05

13.15

 

Hypocenter

 
 

Centroid

 

Origin Time:

Latitude:

Depth:

2023-04-10 00:21:40.09

37.7762

10.0 km

Magnitude:

Longitude:

3.3 MLv

22.3004

Centroid Time:

Latitude:

Depth:

2023-04-10 00:21:42.32

37.8271

30.0 km

Magnitude:

Longitude:

Mo (Nm):

4.1 Mw

22.3013

1.625e+15

 

Used Stations

 

No of stations:

6

Azimuthal Gap (deg):

268.40

Min Distance (km):

156.8

Max Distance (km):

341.8

Frequencies (Hz):

0.05 - 0.08

tapered

0.04 - 0.05

and

0.08 - 0.09

 

Station

 

VLS

LKD2

KZN

PLG

SRN

THE

 

N

 

-3.89

-

-5.99

0.07

-1.81

0.01

 

E

 

0.02

-0.96

-

0.02

-2.28

-

 

Z

 

-

-

-3.93

0.01

-0.09

-

 

Distance (km)

 

157

182

284

305

307

322

 

Waveforms

 
 

4-D Moment Tensor Grid Search

 

Best Moment Tensor Solution

 

NP1

Strike:

74

Dip:

69

Rake:

-168

NP2

Strike:

340

Dip:

78

Rake:

-20

 

P-Axis

Azimuth:

296

Plunge:

22

T-Axis

Azimuth:

28

Plunge:

6

B-Axis

Azimuth:

133

Plunge:

66

 

Six Tensor

Mrr:

-8.061e+14

Mtt:

1.174e+15

Mpp:

-3.677e+14

Components

Mrt:

2.134e+14

Mrp:

-2.276e+14

Mtp:

-1.209e+15

Image

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