11,000 people have already been evacuated after thousands of earthquakes in Santorini. Alert locations, scientists study the case.
Santorini It went from the place that attracts people, to a place that drives people away over the past few weeks.
Thousands of local inhabitants and tourists began to to escape From this Greek island, since late January, after those who began to shake that area.
The experts warned at the time that the tremors recorded at the Aegean Sea, northeast of the Greek island, could continue for the coming weeks.
And confirmed: so far, in less than a monthhave already registered Almost 20 thousand TERMORS OF LAND. More than 11,000 people have left Santorini.
But while the inhabitants and tourists flee (even without much damage so far), scientists approach, investigate the case and install sensors-and are equally worried.
Concerned is a “Axame seismic”: A succession of multiple earthquakes in a specific region for a short period without a main event that stands out in magnitude. I.e, many earthquakes, but none on a large scale.
It adds that this “seismic swarm” is not a habitual sequence: there is no great earthquake and then several fewer replicas. Here the earthquakes have similar magnitudes and are distributed more evenly over time. Although there is always the risk of a greater earthquake.
Even if the earthquakes are smaller but constant and magnitude increasing, They can cause structural damage to buildings and infrastructure.
And, as experts at the time warn, this rhythm can extend for weeks or even months.
As origins There are diverse. One more likely is volcanic activity. Volcano magma to move underground-and Santorini is close to two volcanoes: Nea Kameni, and Kolubbo, a submarine volcano about 8 kilometers northeast of Santorini.
Another possible reason is the movement of geological failures, a tectonic readjustment in areas where earth plates are always moving.
There may also be injection or extraction of underground fluids. Water, for example, can be infiltrated by rock fractures, can lubricate failures, facilitating its movement and giving rise to a series of earthquakes.
The most recent case of seismic swarm occurred in 2018: another island, Mayotte, was the site of more than 7,000 earthquakes. It was the emergence of a underwater volcano.
