El Hierro volcano (Canary Islands) news & activity updates
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 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.
Graph published by INVOLCAN showing the drop in CO2 emission levels
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.
Links / Sources:
Links / Sources:
Tuesday, Dec 13, 2011
While the previously frequent earthquakes have almost disappeared, the submarine eruption near La Restinga has gained momentum again over the past days, rising chances that it still could break the surface. ... [more]
Saturday, Dec 03, 2011
The submarine eruption south of El Hierro has calmed down since last weekend, when still steaming hot lava blocks rose to the surface above the submarine vent about 1 km off La Restinga. Not much has been seen since then, except a light and sometimes muddy stain caused by upwelling water containing volcanic gasses and particles. ... [more]
El Hierro volcano (Canary Islands, Spain), submarine eruption update: steaming lava blocks float to surface
Sunday, Nov 27, 2011
[update 27 Nov] ... [more]
El Hierro volcano (Canary Islands, Spain): increased area of upwelling muddy water and discoloration of sea water, but eruption not likely to form an island
Thursday, Nov 24, 2011
The area of upwelling water above the new submarine vent(s) ca. 1 km off the south coast near La Restinga has increased. Muddy water and sometimes foam are visible at the spot, forming larger and smaller circular areas surrounded by greenish water drifting west. The activity occurs in irregular intervals of typically 20-40 minutes. ... [more]
Monday, Nov 21, 2011
Today, a new spot of upwelling water appeared at ca. 1 km distance off the south coast near La Restinga, near the location of the first submarine vent. Water discoloration, foam on the surface and flattened sea water were clearly visible in this area (see attached photos). We interpret that a new submarine vent is active there. ... [more]