The diffuse emission values of relatively higher volcanic gases have been recorded throughout this week in Tenerife, where a process of pressurization of the volcanic-hydrothermal system is recorded, which does not imply the possibility of a volcanic eruption in the short and medium term .
This information has been released by the Volcanological Institute of the Canary Islands (Involcan) in its weekly report Guayota, which reflects the seismic-volcanic activity recorded on the islands from last Friday, June 17 at 00:00 until this Friday, as well as the volcanic alert level in the Canary Islands.
Regarding the emission of gases and excluding the areas of La Bombilla and Puerto Naos, in La Palma, where anomalous emissions of carbon dioxide (CO₂) continue to be recorded, the Canarian Geochemical Network reflects that the values of diffuse emission of volcanic gases relatively more high are recorded in Tenerife.
On this island, a process of pressurization of the volcanic-hydrothermal system has been registered since 2016, which is normal in active volcanic systems, Involcan points out.
At present, the volcanic traffic lights of Tenerife, El Hierro, Lanzarote and Gran Canaria are in the green position and, therefore, the residents and visitors of these islands can carry out their activities with absolute normality.
But more than six months after the end of the eruption on La Palma, the geophysical and geochemical parameters have still not returned to normal and therefore its volcanic traffic light is yellow, which means that residents and visitors have to continue to be attentive to communications from civil protection authorities.
Regarding seismicity, over the past week the Canarian Seismic Network has recorded 97 low-magnitude earthquakes whose maximum value, 2.1, has been related to an earthquake located between the islands of Tenerife and Gran Canaria last Friday June 17.
In addition, that same day, the Canarian Seismic Network recorded a swarm of hybrid events located around Mount Teide.
The total seismic energy released during the past week in the archipelago was 0.75 giga joules, an amount similar to the electricity demand of El Hierro for approximately 2 minutes.
The earthquakes were located mainly in Tenerife, El Hierro and La Palma and on the latter island a low-magnitude seismicity remains, much lower than that observed during the 2021 eruption.
The Canary Islands are also characterized by moderate tectonic activity and some earthquakes have also been recorded along some active seismic faults, such as the one between Tenerife and Gran Canaria.
Regarding the deformation of the land, during the last week no relevant variations have been observed on any island, adds Involcan.