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Current seismic signal at CRST station in La Restinga (IGN)
Monday, Mar 17, 2014
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. ... [more]
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]
Photos from El Hierro

El Hierro volcano

shield volcano 1500 m
Canary Islands, Spain, 27.63°N / -17.99°W
Current status: restless (2 out of 5)
El Hierro webcams / live data
Last update: 11 Apr 2014
Typical eruption style: mainly effusive, basaltic fissure eruptions
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
TimeMag. / DepthDistanceLocation
Sat, 18 Oct
Sat, 18 Oct 11:18 UTCM 2.6 / 15 km9 km CANARY ISLANDS, SPAIN REGION
Thu, 16 Oct
Thu, 16 Oct 14:12 UTCM 1.6 / 10 km15 kmW FRONTERA.IHI
Thu, 16 Oct 10:29 UTCM 1.3 / 14 km11 kmW EL PINAR.IHI
Wed, 15 Oct
Wed, 15 Oct 16:01 UTCM 0.8 / 11 km14 kmSW FRONTERA.IHI
Wed, 15 Oct 03:45 UTCM 0.7 / 9 km11 kmNW EL PINAR.IHI
View all recent quakes
The triangular island of El Hierro is the SW-most and least studied of the Canary Islands.
Following intense earthquake swarms since July 2011, a new submarine eruption started in Oct 2011 at a vent ca. 1 km south of La Restinga off the southern tip of the island. The eruption, which could even start to build a new island, is ongoing at the time of updating. Follow the El Hierro news page for the latest events.

Background:

The massive El Hierro shield volcano is truncated by a large NW-facing escarpment formed as a result of gravitational collapse of El Golfo volcano about 130,000 years ago. The steep-sided 1500-m-high scarp towers above a low lava platform bordering 12-km-wide El Golfo Bay, and three other large submarine landslide deposits occur to the SW and SE. Three prominent rifts oriented NW, NE, and south at 120 degree angles form prominent topographic ridges. The subaerial portion of the volcano consists of flat-lying Quaternary basaltic and trachybasaltic lava flows and tuffs capped by numerous young cinder cones and lava flows. Holocene cones and flows are found both on the outer flanks and in the El Golfo depression. El Hierro contains the greatest concentration of young vents in the Canary Islands. Uncertainty surrounds the report of an historical eruption in 1793 at Volcano of Lomo Negro. Source: Smithsonian GVP

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