A cluster of tens of seismic tremors has been registered over the past few days under Cumbre Vieja in La Palma, the largest being 2.7 on Richter scale. The authorities are increasing their monitoring of the situation but have stressed that the tremors are very deep, and although such intense clusters are not commonplace, the current one is not beyond the range of normal for an active volcano. Early this morining, too, at 6.38am, tremor of 4 on the Richter scale was registered south of Tenerife. IGN confirms its depth at 25km and various reports from the public show that it was clearly felt in Tenerife itself. The La Palma cluster and the location of the tremor off the south tip of Tenerife are indicated on the above graphic from IGN this morning, and the experts say that as in La Palma, this is quite normal for an active volcanic region.