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El Hierro volcano
shield volcano 1500 m
Canary Islands (Spain), 27.63°N / -17.99°W
Current status: normal or dormant (1 out of 5)
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El Hierro volcano eruptions:
2012 (?) (probable second submarine eruption in June-July west of the island), 2011-12 (Oct-Mar, submarine eruption near La Restinga), 1793
Typical eruption style:
mainly effusive, basaltic fissure eruptions
Last earthquakes nearby
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El Hierro volcano (Canary Islands) news & activity updates

El Hierro volcano update: new pulse of volcanic tremor near La Restinga ?

Monday Mar 17, 2014 08:57 AM | BY: T

Current seismic signal at CRST station in La Restinga (IGN)
Current seismic signal at CRST station in La Restinga (IGN)
Current seismic spectrum and tremor amplitude (CRST station)
Current seismic spectrum and tremor amplitude (CRST station)
Depth vs time of earthquakes at El Hierro volcano during the past 30 days
Depth vs time of earthquakes at El Hierro volcano during the past 30 days
What looks like a new swarm of earthquakes accompanied by strong harmonic tremor appeared on the southernmost seismic station at La Restinga. If it is not due to some local, human-induced work or malfunction, it suggests that the quakes are very shallow, since they don't appear on the signals of other stations.
Whatever is happening there will probably become clearer soon.
The latest earthquake swarm in the NE part of the island had more or less stopped during the past 24 hours. Some GPS stations showed 2-4 cm uplift during the weekend, which supports the idea of a new deep magma intrusion.
Previous news
Location of earthquakes under El Hierro since yesterday
Saturday, Mar 15, 2014
A new swarm of earthquakes started yesterday. So far, almost 200 tiny quakes (none above magnitude 3 so far) have occurred in a broad N-S oriented area beneath the NE part of the island at around 18 km depth. ... [more]

Friday, Dec 27, 2013
A large earthquake of estimated magnitude 5.4 (USGS) occurred just minutes ago. USGS places the quake at 22.8 km depth NW of El Golfo, i.e. away from the area of the recent earthquake swarm and current inflation. ... [more]
GPS measured deformation at El Hierro (IGN)
Thursday, Dec 26, 2013
Although earthquakes have largely ceased for the moment, the island experiences ongoing rapid inflation and harmonic tremor, both signs that an eruption could be imminent. ... [more]

Tuesday, Dec 24, 2013
The new seismic / deformation crisis continued over night with about 20 quakes between magnitudes 2-3 today so far (during the first 6 hours). The key obsservations are: ... [more]
 

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