Santorini earthquakes: What is happening – and why?

The Greek island of Santorini usually evokes pictures of the beautiful white buildings and the dreamer blue seas, but since January this year, its house in the Aegean Sea is exposed to a semi-fixed series of seismic activity-what is happening?

At the time of publication, during the past 24 hours alone, the earthquake laboratory at the University of Athens discovered 90 earthquakes with a dirt center in the CYCLADes that contain Santorini, Amorgos and iOS, one of which was 5.0 volume.

This may seem like a lot of earthquakes, but they are only the latest in a long line. On January 26, there were 26 earthquakes in the Cyclades area; Since then, it was reported that the total earthquake has reached more than 12,800. In February, it has seen more than 1,000 earthquakes per day, and although its power at a time it seems to be decreasing, the island struck a shallow earthquake of 5.3 on February 10 .

As a result of tremors, the state of emergency was announced in Santorini (and Amorgos), where thousands of residents chose to leave the island.

What causes earthquakes?

Santorini is not alien to geological disorders – the island is volcanic and is still active, although there is no major eruption since the fifties. While seismic activity can refer to an upcoming eruption, seismologists said that volcanic activity does not bear the blame on the last earthquakes.

“Although the earthquakes are observed inside the active volcanic arc in the south of Aegean, it is not directly related to any known volcanic center,” said the earthquake laboratory at the University of Athens in a translated press statement.

Instead, experts from the laboratory explained that the activity that “may have so far carries the properties of a seismic swarm, as there is no earthquake with a clear size of all others, which can be described as a major earthquake, is clear.”

The “seismic squadron” refers to a relatively small series of earthquakes that often occur within a short period of time and in the same place, with “Mainshock”.

The swarm near Santorini appears to be associated with activating a system of natural errors, and fractures in the Earth's crust where there is a movement. Earthquakes are the result of the sudden release of the tension that the movement brought up along these faults.

“Seismic swarms, especially those in volcanic environments or near them, are often operated by storming fluids in the tissue that tear, which facilitate rupture, in conjunction with the transmission of stress resulting from tectonic earthquakes them .

What is unclear is where the activity will go from here – there is no accurate and reliable way to predict earthquakes. However, experts from the earthquake laboratory made some suggestions about what could happen.

“Although this is likely to be a group that contains earthquakes of large sizes, compared to modern seismic groups in Greece, one of the possibilities is that its activity will continue with smaller sizes gradually and less earthquakes, but it will continue for many months,” they explained.

“However, the second possibility, which cannot be excluded, is that this squadron stimulates the rupture of an important part of a major active error in the region, which leads to a major earthquake, then the activity takes the form of a typical post sequence.”

“We are watching not only serumography, but also many other systems that follow the deformation of the Earth, gas emissions, and satellite data,” said Costas Papazatos, professor of geophysics at the University of Tsaloniki, told Ert Radio, for the reports of Associated Press. “At this moment, I can say frankly that we do not have final expectations, as it is too early to assess the current slight escalation of seismic activity. We have faced many surprises.”

He said, “We hope that this sequence will be transmitted in a positive way and will be resolved sooner, not later,” he said.

All “explanation” articles are confirmed by realistic auditors at the time of publication. Texts, images and links can be edited, removed or added on a later date to preserve the current information.

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