Saturday, June 21, 2014

[Geology2] Reunion Island volcano erupts again after four years



Reunion Island volcano erupts again after four years


Reunion Island volcano erupts again after four years
By Nelson Alcantara, eTN editor-in-chief | Jun 21, 2014

This morning at 1:35 am tourists on the French Indian Ocean Islands La Reunion tourists witnessed a spectacular many had been waiting to see for some time. The Piton de la Fournaise volcano erupted.

"It made a few days that we were waiting for it, said Pascal Viroleau, CEO of Reunion Island Tourism, about the eruption of the volcano of Reunion Island, the Piton de la fournaise. According to Viroleau, "the volcano entered in activity this morning at 1:35 am."

Most recently, an eruption occurred on December 9, 2010 and lasted for two days. The volcano is located within Réunion National Park, a World Heritage site. It is considered one of the major attractions of the Indian Ocean Vanilla Islands.

"Sleeping since December 2010," Piton de la fournaise is considered as one of the major attractions of the Indian Ocean Vanilla Islands.

Situated in the national park, classified in the World heritage by the UNESCO, its visit, combined with the attractions of the other islands constitutes a "must-seen" at the world level, added Viroleau.

Piton de la Fournaise, a typical basaltic shield volcano, located on the French island La Réunion, is one of the world's most active and productive volcanoes. It is in a phase of frequent but short-lived eruptions that start with lava fountains and produce large lava flows. Since the active areas of the volcano are not inhabited, its eruptions pose little danger and cause little damage.

Piton de la Fournaise is a typical example of a hot-spot volcano. The volcano is about 530,000 years old and during much of this time, its activity overlapped with eruptions of its older neighbor, the deeply dissected Piton des Neiges shield volcano to the NW.

Three calderas formed at about 250,000, 65,000, and less than 5000 years ago by progressive eastward slumping of the volcano. Numerous pyroclastic cones dot the floor of the calderas and their outer flanks. Most historical eruptions have originated from the summit and flanks of Dolomieu, a 400-m-high lava shield that has grown within the youngest caldera called the Enclos, which is 8 km wide and breached to below sea level on the eastern side.

More than 150 eruptions, most of which have produced fluid basaltic lava flows, have occurred since the 17th century. Only six eruptions, in 1708, 1774, 1776, 1800, 1977, and 1986, have originated from fissures on the outer flanks of the caldera. The Piton de la Fournaise Volcano Observatory, one of several operated by the Institut de Physique du Globe de Paris, monitors this very active volcano.

La Reunion is a French province in the Southern Indian Ocean and a member of the newly formed Vanilla Island group.

http://www.eturbonews.com/47173/reunion-island-volcano-erupts-again-after-four-years
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Posted by: Lin Kerns <linkerns@gmail.com>



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