One took place between 1.30am and 5.30am on Saturday with the second recorded between 7.30am and 10.30am on Sunday. It is understood they were both at depths of around eight and 21km below Las Canadas, with each recording low magnitudes.
The IGN however says the numbers are provisional and could still increase. It emphasises that this type of activity does not represent an increased risk of volcanic eruption in the coming weeks or months, reports Canarias7.
It comes after the Santa Cruz de Tenerife Council has reportedly started work on a contingency plan in case of an eruption. Mount Teide, Spain’s highest peak, last erupted in 1909.
However a specialised technical department has now been established to design an action plan should it erupt again. The strategy aims to strengthen the city’s preparedness and ensure it can provide shelter and essential services.
It is thought the city could currently handle a “moderate emergency” but fears a large-scale eruption could present more serious challenges. Santa Cruz Mayor Jose Manuel Bermudez said: “We don't know how it will happen, how it will develop, or when it might occur.
“But scientists have indicated that current volcanic developments on the island are not something normal.”
The IGN measures seismic activity in Spain using a network of more than 100 stations, equipment and sampling points which are then deployed across Tenerife. It allows for continuous monitoring.
It means scientists can carry our real-time monitoring to identify possible changes in seismic activity, ground deformations, or geochemistry. Tenerife, the largest of Spain’s Canary Islands, is surrounded by volcanic activity.
Where the mayor has raised concerns about readiness to deal with an eruption, the president of the island’s governing council, the Cabildo of Tenerife, Rosa Davila, previously downplayed speculation.
Teide’s 1909 eruption caused “minor damage” on the island. However an earlier eruption in 1706 is said to have destroyed a town as well as Tenerife's principal port of Garachico.
“A month and a half ago this activity would not have attracted much attention,” a spokesperson for the local National Geographic Institute explained. “However, given the current context we will continue to monitor the situation closely in case anything changes.”
