Increased activity in El Hierro

Update (17 september, 20:00 UTC)

The activity stays at high level (more than 100 recorded earthquakes on average per day), but earthquakes are currently occuring at high depth (most deeper than 20 km), so no immediate risks for the population.

Update (20:00 UTC)

Two figures quickly:

Number of earthquakes of magnitude greater than 2 between 1 ^st September and 13 September:    7
Number of earthquakes of magnitude greater than 2 for 14 September between 00H and 20H:    15

So, twice the count of the last 13 days for this day alone ( and it is not finished yet!) .

From now, updates will be added at the beginning of the post.

Important Update (14H:00 UTC)
The activity seems to become more important, as detected on several stations.
This is to be followed carefully.

Very important update (19H00 UTC)

According to the seismographs on various stations, it seems that the magma is now moving.
An example from CJUL:

Fig. 1. CJUL: tremor?

 

If the graph shows indeed a tremor, then the magma is moving, and it remains to be seen where it goes. Three hypotheses:

• or it migrates from Frontera (at 20 km depth) to El Golfo (at 10 km depth)
• or it migrates from El Golgo (at 10 km depth) to the surface
• or it migrates ... elsewhere.

The next hours will allow us to decide. At least I hope.