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El Hierro volcano (Canary Islands, Spain): end of the submarine eruption in sight?

Monday Dec 19, 2011 16:25 PM |

The ongoing weak volcanic tremor as recorded by IGN on 19 Dec
The ongoing weak volcanic tremor as recorded by IGN on 19 Dec
Graph published by INVOLCAN showing the drop in CO2 emission levels
Graph published by INVOLCAN showing the drop in CO2 emission levels
The submarine eruption south of El Hierro is still going on, but there are signs magma supply has dropped significantly. Most likely, the eruption which now has lasted over 2 months is approaching its end.
Volcanic tremor has decreased a lot, and there are almost no more bursts related to steam explosions at the underwater vent. Diffuse CO2 emissions (CO2 being interpreted as indication of fresh magma supply) has decreased, too. Earthquakes which are often related when new magma intrusions create new paths in the substrata, have almost stopped as well. The water discoloration south of La Restinga is still present and weak upwelling of muddy water is still being observed, but much less than previously, and with less intensity.
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Previous news
Friday, Dec 09, 2011
If anyone is interested in joining a trip to Nicaragua to see Concepcion, Masaya (Night/Day), San Cristobal, Montotombo, Santa Clara, Telica, Cerro Negro, El Hoyo Volcanoes from 5th to 14th January 2012 please get in touch. Please note you need to be in good physical condition to do the tour as it is very active and not much rest time. [more]

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