The Hellenic arc is one of the most active seismic zones in western Eurasia . It has regularly been the source for magnitude 7 earthquakes in the last hundred years of instrumental recording and the location for at least two historical events that were probably of about magnitude 8 or more , the 365 Crete earthquake and the 1303 Crete earthquake
1303 Crete earthquake
1303 Crete earthquake
Hellenic arc