As time goes by we understand more and more about the activity under El Hierro. The Canarian Hotspot has several plumeheads reaching up under the volcanically active islands in the Island chain. It seems that for unknown reasons the activity has changed at depth so that El Hierro has become far more active than previously.…
During the last few days activity has continued at El Hierro even though earthquake activity has decreased a lot. Harmonic tremor is though still increasing and GPS uplift is rather dramatic with maximum values at 75mm. With a bit of internet-spelunking I have tracked down where the maximum activity is, an indicator of where a…
As Christmas moves towards Boxing Day it looks more and more as the volcano of Tanganasoga on the island of El Hierro in the Spanish Canary Islands is closing in on a new eruption. Since the last eruption the seismic activity has continued in a subdued fashion, but not in a way that really was…
http://www.ign.es/ign/resources/volcanologia/jpg/Eventos_HIERRO_15D.jpg El Hierro and BoB are a theme that runs right through Volcanocafe and there is still unrest there more than 2 years after the onset of the seismic crisis. It’s been a bit busy this week and the comments from the crowd (thanks loyal commentators) provide a useful lesson in reading/ navigating the seismometers……
As the smoke starts to clear at El Hierro we get a much more detailed picture of what is happening. As data has poured in we can now deduce a few things. First of all GPS figures today confirmed that this is indeed a fourth bolus of magma coming up from the depth. The first…
VolcanoCafé 
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