Seismic Deformation of the Lithosphere - Quantitative Plate Tectonics - page 308

each focal mechanism and discuss the style of
deformation of this slab;
2. Download the MS Excel file CMT7609.xlsx,
containing the global CMT catalog 1976-
2009. Select underthrusting earthquakes
(depth 40 km) from the Hellenic Trench
between (38 ı N, 20 ı E) and (34.6 ı N,24 ı N).
Determine the average velocity of conver-
gence between Africa and Greece using
Brune's formula. Compare with the velocity
of convergence Africa - Eurasia in the same
area estimated by MORVEL (see Chap. 2 ) ;
3. Write a computer program to calculate the
strain rate tensor from a set of moment tensors
using Kostrov's formula ( 11.4 );
4. Write a computer program to calculate the
strain rate tensor from a set of asymmetric
moment tensors using formula ( 11.14 );
5. Perform a study of seismic deformation of
Turkey using Kostrov's formula and the asym-
metric moment tensor approach. Discuss the
differences between the two approaches.

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References

Apperson KD, Frohlich C (1987) The relationship be-
tween Wadati-Benioff Zone geometry and P , T and
B axes of intermediate and deep focus earthquakes.
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