The Greek government’s chief seismologist says the frequency of earthquakes affecting Santorini and nearby islands has eased in recent days, but that the outlook for continued tremors in the coming weeks remains uncertain.

Past tsunamis have hit Israel’s coast, and with Santorini’s seismic activity at an all-time high, the risk of another wave is being taken seriously. Authorities remain on high alert, as the region watches and waits to see what happens next.