Complex sentence: According to Papadopoulos and Kijko, the Western Hellinic Arc has high seismic activity which has resulted in deformations in the strait which are active; here the "seismic slip" recorded is of the order of 0.3cm/year.
Split into simpler sentences: According to Papadopoulos and Kijko, the Western Hellinic Arc has high seismic activity which has resulted in deformations in the strait which are active. Here the "seismic slip" recorded is of the order of 0.3cm/year.