An earthquake swarm near the island of Santorini is gradually declining a month after it began, Greek scientists monitoring the phenomenon said Monday. The undersea shocks — sometimes recorded only minutes apart — led thousands of residents and workers to flee the famed clifftop towns of Santorini as well as the nearby

Santorini, hit by an earthquake in late January, has since been shaken by a swarm of tremors. Most of its 16,000 residents have fled, and authorities have declared a state of emergency on nearby Amorgos as the quakes continue.

An earthquake swarm near the Greek island of Santorini is gradually declining a month after it began, according to scientists monitoring the phenomenon. The undersea shocks — sometimes recorded only minutes apart — led thousands of residents and workers to flee the famed clifftop towns of Santorini and the nearby islands of Ios,

Greece’s chief seismologist says that while earthquake frequency around Santorini has slightly decreased, the situation remains unpredictable for the coming weeks