This is Crete, a mountainous island of ~8,500 km2 in the middle of the Eastern Mediterranean.
It lies within the uplifted fore-arc section of the Hellenic subduction margin. In simple words, it is exactly where the African oceanic plate runs into and slides beneath the continental Eurasian one. As a result, it is the most seismically active region of Europe, the island is literally trembling, a fact that the Minoans took seriously during construction. Their anti-seismic constructions were ahead of their contemporaries.