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.

A new earthquake of magnitude 5 on the Richter scale was recorded on Tuesday morning between the Greek islands of Santorini and Amorgos. The earthquake occurred at 4.46 a.m. local time (0246GMT) at a depth of 13 kilometers (8.077 miles), according to the Geodynamics Institute of the National Observatory of Athens.