The worst earthquake really was the one in Athens in 1999, although its magnitude was only 5.9 on the Richter scale, i.e., relatively low. However, it caused serious property damage, caused 143 casualties and thousands of people were injured. There were serious earthquakes in the region of the Ionian island Kefalonia in the 1950s which also took lives, and then in the area of Corinth. In 1968 the largest earthquake happened in Kalamata, another earthquake occurred in Thessaloniki next year, etc.