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El Hierro eruption

Started by aspasia, Sat 3 Mar 2012, 18:10

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Myrtle Hogan-Lance

Despite what *some people* think, that's a fairly big earthquake.

Signed, Survivor of Many Earthquakes

Janet

Further quakes of 3.7 and 3.3 were recorded last night (11pm and just before 1am) in the same place (10km out to sea to the west of El Hierro) at depths of 20 and 12 km. These are just the "relatively strong" ones - several others in the mid-2 Richter range were also registered  Deformation in the El Pinar and La Restinga area is now said to be "strong", giving a total lift of 10cm in this cluster.  HERE

Janet

Avcan is reporting a new magma intrusion in El Hierro which has resulted in some 25 tremors since early this morning. Seismic activity has been building up somewhat over the past few days, but as of 5am this morning  a cluster of  earthquakes has been recorded, almost all of them between 1.8 and 2.3 on the Richter scale. All were located in the eastern wall of the Golfo area of the La Frontera municipality, between the Roques de Salmor to the los Roquillos tunnel. JA

Janet

The cluster is now a swarm, with the largest tremor overnight at 2.4 on the Richter scale. All the quakes are said to be deep at 15 and 20 km, and have slowly shifted north from the El Golfo area towards Valverde and then turned back south towards the centre of the island, towards an area previously unaffected. This fits experts' views that the magma is continuing to seek new ways of reaching the surface. Over the last hours of the night the rate of tremor increased, with some 227 being recorded over the last 24 hours. JA

Janet

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An earthquake of 2.4 on the Richter scale at a depth of 33 km was registered by IGN to the west of El Hierro last evening minutes before 8pm. It was followed at 10.36pm by another of 3.8 at a depth of 15.6 km in the same region. Avcan (Actualidad Volcánica de Canarias) says that it was felt throughout the whole of the island. JA