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> 100 years ago today El Chinero erupted on Tenerife
digate
post Nov 18 2009, 05:23 AM
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El Chinyero erupted 100 years ago on 18Th November 1909 and lasted until the 27Th November 1909, creating the 80m scoria cone of El Chinyero, it erupted 2.2km of lava and covered a very large area in black volcanic rock. This area is heavily protected as a site of special scientific interest.

Today it is a fascinating place to visit, whilst looking at El Chinyero, you tend to forget that you are standing in the vast crater of El Tiede. You can clearly see the larva flows, the different minerals which all make up the extraordinary landscape, which is itself a sight to behold.

One hundred years on, the Chinyero eruption is being remembered by way of an exhibition which can be seen in the former Convent of Santo Domingo in Puerto de La Cruz, between November 13Th and December 17Th.

The Volcanic Evolution of Tenerife

Pico Viejo Crater

Volcanism in the Canary Islands belongs to the alkaline series, with basaltic rock predominating, although a whole range of rocks derived from the original basaltic magma have emerged. The evolution culminates in elements such as trachytes and phonolites, which are particularly abundant on the island of Tenerife.

Viscosity is an essential feature of magma: so basaltic eruptions are more fluid and the lava flows over long distances, whilst gasses continually escape from the eruption centre; more highly evolved magma - trachytic -, on the other hand, is more viscous and the lava can not flow as far. It builds up in great masses close to the mouth of the volcano, below which gasses concentrate and are violently and dangerously expelled from time to time.



HISTORIC ERUPTIONS IN TENERIFE

The volcanic history of Tenerife is completed when the eruptions of which we know about are located. The Guanches, the islandīs first settlers, would certainly know of other eruptions that are not considered as historic as only those for which a written reference exists are considered as historic eruptions.

The 1704 - 1705 eruption: This eruption, a typical fissure eruption, occurred through three, clearly distinguishable emission centres: Siete Fuentes, Fasnia and Montaņa de Las Arenas, all aligned along a 13-kilometre long fracture.

The Garachico eruption (1706): On the 5th of May, 1706, about 8 kilometres south of the town of Garachico, Montaņa Negra came to life in an eruption that lasted nine days. Of all the historical eruptions in Tenerife, this is the only single point one and also, the only one that has caused considerable material damage.

The Chahorra eruption (1798): This is the only historical eruption that has occurred within the boundaries of what is now the Teide national park. The eruption started on the slopes of Pico Viejo, on the 9th of June, 1798 and continued until the 8th of September of the same year. This is the longest-lasting of all the historical eruptions that have happened in Tenerife.


The Chinyero eruption (1909): The last eruption to have occurred in Tenerife was the Chinyero eruption. It started on the 18th of November, lasting 10 days. The original nine mouths of the volcano were later reduced to three main ones.


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starlagurl
post Nov 18 2009, 10:22 AM
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Hmmm, interesting.

Did anyone get hurt when that happened?


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digate
post Nov 18 2009, 02:03 PM
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QUOTE(starlagurl @ Nov 18 2009, 10:22 AM) *

Hmmm, interesting.

Did anyone get hurt when that happened?


No there was no one hurt and structural damage, in fact they did educational trips so as the students could experience the historic event.

That would have been great.


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