More than 130 earthquakes have been detected under a large volcano in Iceland.

More than 130 earthquakes were recorded in large areas of Iceland on Tuesday Bardarbunga volcanoIceland’s meteorological office said it was a possible precursor to an eruption among several scenarios being considered.

The aviation color code over the area was changed from green to yellow as a precaution, the meeting office said, as the volcano’s remote location in the center of the uninhabited highlands of southern Iceland meant no infrastructure was at risk.

The series of seismic events lasted for about three hours and subsided slightly, meeting the office said in the statement.

“Earthquakes continue to be detected in the region and it is too early to say whether the flocks will disappear,” he said.

The largest earthquake was recorded at magnitude 5.1, and at least two earthquakes of magnitude 4 or above were detected, with 17 other earthquakes of magnitude 3 or higher, he said.

The meeting office said the earthquakes were “consistent with increased inflation due to magma accumulation” in the Bardarbunga region.

“Activity will be closely monitored, but at this point it is difficult to say what the development will be,” he said from the meeting office.

The caldera or crater of the central Bardarbunga volcano is about 25 square miles in area and is filled with ice.

Vatnajokull is one of the six volcanic systems under Europe’s largest glacier.

In the event of a subglacial eruption, there is a risk of ash eruption and subglacial flooding from under Vatnajokull.

If an eruption occurred outside the glacier, it would be a lava eruption, the Met Office explained.

“Seismic activity has increased in Berdarbunga in recent months,” he said. Tuesday’s earthquake is the largest since Bardarbunga’s last eruption, which lasted six months in 2014-2015.

“Bardarbunga is unique in that it is an unusually large volcanic system, partially covered by a glacier, and several scenarios are possible,” the agency said. “Extensive research was conducted during the 2014-2015 eruption, along with hazard assessment and emergency planning, which will be valuable should future volcanic activity occur.”

The eruption produced Iceland’s largest basalt lava flow in more than 230 years, but caused no injuries or damage.

Iceland saw seven volcanic eruptions Within a year, near the fishing village of Grindavik in the southwest, it caused the settlement to be evacuated. According to the country, people have been evacuated from around 50 houses in Grindavik after the seventh eruption. Civil Defense Agency.

Iceland is home to 33 active volcanic systems, more than any other European country.

It sits on a rift between two tectonic plates, making this island nation vulnerable. earthquakes and volcanic eruptionsIn recent years, some parts of the country have been shaken and displaced residents.