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DYNAMICS and ACTIVE PROCESSES - International Lithosphere ...

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agreement with the ~E-W extension previously identified within the Albanian orogen.<br />

Our results show that the 2009 mainshock ruptured a roughly 9 km normal fault at a<br />

depth of 6km, which strikes ~N194 ° E <strong>and</strong> dips with an angle of ~45 ° to the west. The<br />

slip of the mainshock was confined in a single patch of ~9 km × 6 km, the average slip<br />

was 5 cm <strong>and</strong> the peak slip was 18 cm.<br />

Kiratzi (2010). ILP Conference-Albania<br />

Figure 1: Fault plane<br />

solutions for earthquakes<br />

with Mw>5.0 in Albania<br />

<strong>and</strong> neighbouring<br />

countries together with<br />

the 2009 Dibra events<br />

studied here. Note the<br />

nearly N-S trending faults<br />

(beach-balls depicted with<br />

light green) along the<br />

Albania orogen that take<br />

up deformation by nearly<br />

E-W extension.<br />

The slip model was incorporated in a forward modelling scheme to simulate the ground<br />

motion distribution in the near field. The shakeMap (Fig. 2) obtained from the<br />

distribution of Peak Ground Velocity at phantom stations depicts the mezoseismal area<br />

within the Dibra <strong>and</strong> Bulqiza districts in Albania, in accordance with macroseismic<br />

observations. The region of occurrence of the 2009 sequence together with the<br />

seismogenic region of the 1967 Dibra event, form a roughly NNE-SSW trending<br />

78

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