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Piton de la Fournaise volcano (La Réunion), eruption update: extremely high lava output

Saturday Apr 07, 2007 00:41 AM | DOOR: TOM PFEIFFER

The debit of the lava flow has reached unusually high levels, as a report from the volcano observatory communicates: "...probably much higher than 100 m3 per second, a value which has not been observed at Réunion Island within the last 20 or 30 years. The national road is cut over more than 1 km."

"High values of sometimes over 300 micrograms per m3 of SO2 had been measured by the Observatoire Réunionnais de l’Air (ORA) in the western and northern part of the island.
Dust and Pele’s hair from the eruption site were observed even at 10 to 20 km away and small, mm sized grains of basalt, formed by the lava flow into the sea and transported by the steam plume (generated at the lava flow entry into the sea) were observed within 5 km of the site.

Together with the eruption, a high seismic activity is observed beneath the summit of Piton de la Fournaise between sea level and 1000 m above. This seismicity might indicate a possible pit crater formation within Dolomieu crater, due to the emptying of the magma chamber by the eruption. In the same time and due to the proximity of the rampart south, a propagation of the dyke to inhabited areas can not be excluded and the authorities prepared a possible evacuation of the population in this part of the island if ever necessary, even though no seismic events had been observed yet, indicating an eruption there."

Source: OVPF via message from T. Staudacher

Vorig nieuws

Friday, Mar 16, 2007

Tom and Marco visited Stromboli's recent eruption in early March. Sets of new photographs have been posted.

Monday, Nov 13, 2006

We gladly announce two new study&walking tours we can offer you in Italy: one to the Bay of Naples from 8-15 April and a two-weeks tour of the Eolian Islands from 6-18 May 2007. Both tours will be guided by our Italian geologist Marta who is a true insider in both areas.

Saturday, Jul 29, 2006

A set of photos from our recent expediton to Nyiragongo volcano has been posted. The next tour to see this unique volcano and the endangered mountain gorilllas of the Virunga volcanic chain is now set to 21-28 Jan. 2007. Details on this page.

Monday, Apr 17, 2006

Because of the recent interesting volcanic activity at Merapi and Semeru volcano on Java, we point to two tours with open spaces for last-minute individual bookings:

... [meer...]
Friday, Mar 10, 2006

Due to lack of participants, we decided to cancel the tour to North Sulawesi and postpone it to 2007. As an interesting alternative, we can offer a special trekking tour in Java and Bali from 5-20 August instead. There are two open spaces available.


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