 At the time, specialists assessed a 50% probability of an aftershock of magnitude 6.0 or greater to occur within the subsequent 72 hours, with a 20% chance of its magnitude exceeding 7.0.Despite the earthquake's great intensity, structural damage to the region was comparatively light; the epicenter was located nearly a hundred kilometers offshore, with most structures in its vicinity reported to be resistant to earthquake shaking.The majority of the destruction was confined to coastal areas, such as sea and fishing ports, mostly inflicted by subsequent tsunami waves.