Santorini’s Earthquake Swarm Is Declining Gradually as Thousands Return to the Greek Island 

A drone view of the village of Oia, as the seismic activity continues, on the island of Santorini, Greece, February 20, 2025. (Reuters)
A drone view of the village of Oia, as the seismic activity continues, on the island of Santorini, Greece, February 20, 2025. (Reuters)
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Santorini’s Earthquake Swarm Is Declining Gradually as Thousands Return to the Greek Island 

A drone view of the village of Oia, as the seismic activity continues, on the island of Santorini, Greece, February 20, 2025. (Reuters)
A drone view of the village of Oia, as the seismic activity continues, on the island of Santorini, Greece, February 20, 2025. (Reuters)

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 islands of Ios, Amorgos and Anafi.

Schools remain closed on those islands for a fourth week and many other restrictions are still in effect. But scientists said they were encouraged by the decline of the earthquake swarm.

“Seismic activity continues to show a gradual decline, both in terms of the daily number of recorded earthquakes and maximum magnitudes,” the Interdisciplinary Committee for Risk and Crisis Management at the University of Athens said.

“The activity remains concentrated in the same focal area ... with no new micro-seismic surges observed since Feb. 15,” it said.

The committee said it recorded more than 20,000 earthquakes of magnitude 1 or higher between Jan. 26 and Feb. 22.

The multiple earthquakes, attributed to natural tectonic processes as well as magma movements below the seabed, have measured up to magnitude 5.3 but have caused only minor damage.

Santorini Mayor Nikos Zorzos on Monday said several thousand people had returned to the island since late last week, and called on government authorities to provide additional assistance in dealing with risks — including controlling rockfalls and the installation and repair of hillslope fencing.



Faint Glow in Saturn… Did a Mystery Object Crash into the Gas Giant on Saturday?

New image captured by a NASA employee and amateur astronomer appears to show a space object crashing into Saturn for the first time. Photo: NASA
New image captured by a NASA employee and amateur astronomer appears to show a space object crashing into Saturn for the first time. Photo: NASA
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Faint Glow in Saturn… Did a Mystery Object Crash into the Gas Giant on Saturday?

New image captured by a NASA employee and amateur astronomer appears to show a space object crashing into Saturn for the first time. Photo: NASA
New image captured by a NASA employee and amateur astronomer appears to show a space object crashing into Saturn for the first time. Photo: NASA

Astronomers have called for help to identify a mystery object that may have hit Saturn on Saturday in what could be the first recorded instance of a space object crashing on to the gas giant.

Studies suggest large objects- measuring over a kilometer across – strike Saturn once every 3,125 years on an average, according to The Independent.

Although data shows seven or eight small space rocks hit the planet every year, none have been spotted in the act by astronomers so far.

Compared to rocky planets where cosmic collisions leave impact craters, gas giants like Jupiter and Saturn don’t reveal such signs.

But a new image captured by a Nasa employee and amateur astronomer Mario Rana appears to show a space object crashing into Saturn for the first time.

Since gas giants have outer layers made of hydrogen and helium, strikes by asteroids or comets can quickly fade out.

Rana is part of the DeTeCt project, which analyzes images of Jupiter and Saturn using computer software. Videos taken of Saturn by the astronomer last Saturday show a faint glow in the left side of the footage, which seems like an impact event.

The Planetary Virtual Observatory and Laboratory, or PVOL, a consortium of professional and amateur astronomers, has called for experts in the field to attempt to confirm or refute the potential impact on Saturn.

“Marc Delcroix reports a potential impact in Saturn captured in a few frames in a video observation obtained by Mario Rana. The potential impact would be very faint and is unconfirmed,” PVOL said in a statement.

“The very short impact flash occurred on Saturn on 5 July 2025, between 9am and 9.15am UT. It is very important to get other videos of Saturn taken during that time frame.”

PVOL has urged astronomers who may have also captured observations from this time to contact Delcroix and submit their data.

Leigh N Fletcher, a planetary science professor at the University of Leicester, also called for amateur space observers to share any potential videos they may have of the impact.

“Amplifying the call from Marc Delcroix and co over the weekend: the team are looking to verify/refute a potential impact on Saturn on 5 July, 9am to 9.15am UT,” Dr Fletcher wrote on BlueSky.

“Videos taken by amateur observers at that time might hold the key.”