The earthquake that hit Arkalochori was with 98.8 percent certainty the main quake because the fault from which it derived can't give a tremor over 6 Richter, stated the head of the Geodynamics Institute of the Athens National Observatory, Professor Akis Tselentis, on Monday.
He added, however, that "we didn't expect a quake of such magnitude" noting that because it was superficial, only 10 km, there will be a long and active period of aftershocks and quite a lot of damage to old buildings near the epicentre, so local residents should be very cautious.