Saturday, December 4

The seismic process in Cumbre Vieja “continues” and may have “a rapid short-term evolution”


The General Directorate of Security and Emergencies of the Government of the Canary Islands, after the meeting this Friday of the Scientific Committee of Pevolca (Plan of Volcanic Emergencies of the Canary Islands), has updated the alert situation due to increased seismic activity in Cumbre Vieja and has agreed keep the yellow traffic light. The affected territory includes Los Llanos de Aridane, Fuencaliente, El Paso and Mazo, reports a press release. The Scientific Committee, as well as the Steering Committee, will meet again this Saturday.

A plane joins the monitoring and follow-up of the seismic activity of La Palma

A plane joins the monitoring and follow-up of the seismic activity of La Palma

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The Pevolca Scientific Committee, in this Friday’s report, points out that “in the last hours a clear general decrease in seismic activity has been observed, although a pulse of notable intensity has been registered with events located both at depths of 6- 8 km, as superficial. The seismicity this Friday is located northeast (NE) of the previous day (09/16). It is verified that the shallow seismicity is predominant. The deformation continues at a lower speed, being compatible with a more superficial source of deformation ”.

The process continues and may evolve rapidly in the short term. The decrease in seismicity may be temporary and does not necessarily imply a stoppage of volcanic reactivation. As indicated in the previous bulletin (September 16), the occurrence of felt earthquakes of greater intensity is expected. At the same time, the beginning of observable phenomena on the surface cannot be ruled out ”, he explains.

Megatsunami, no scientific basis

The aforementioned committee, “regarding the news appeared in the media about a possible great collapse of the west flank of Cumbre Vieja and consequent formation of a megatsunami”, has stressed that “there is no data to support this hypothesis”, and that “it lacks with proven scientific basis. For all the above, it is recommended to keep the volcanic traffic light in yellow in the Cumbre Vieja area, and it cannot be ruled out that it will intensify in the short term “, he emphasizes.

“The traffic light will be revised in line with the evolution of the process. The continuous monitoring of the activity has been reinforced and any significant changes observed will be communicated, “he says, and asks the population to remain” attentive to the information provided by the corresponding Civil Protection authorities, “he concludes.

The Scientific Committee is coordinated by the General Directorate of Security and Emergencies of the Government of the Canary Islands and is made up of representatives of the National Geographic Institute (IGN), Higher Council for Scientific Research (CSIC); The Canary Islands Volcanological Institute (Involcan), the Geological and Mining Institute of Spain (IGME), the State Meteorological Agency (AEMET), the Spanish Institute of Oceanography (IEO), the University of La Laguna and the University of Las Palmas de Gran Canaria.

The Pevolca establishes a volcanic traffic light as an alert system to the population based on four colors depending on the risk: green, yellow, orange and red. In yellow, information to the population, surveillance measures and monitoring of volcanic and seismic activity are intensified.

At this level, activity monitoring is reinforced to communicate any significant changes that are observed. The population must be attentive to the communications of the competent authorities in Civil Protection, through official channels and the media.



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