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Poás volcano (Costa Rica) - report on changes due to 24-26 March 06 eruption

Thursday Apr 13, 2006 08:40 AM | BY: TOM PFEIFFER

On 1 April, scientists visited Poás volcano and confirmed that Laguna Caliente at the volcano's summit had widened, and that sediments and blocks fromthe lake's bottom and surrounding walls were ejected during the explosions on 24-26 March 2006. The lava dome's (or pyroclastic cone's) N wall was greatly fractured and a 40 x 7 x8 m segment of the wall was gone. In addition, a 40 x 4 x 6 m chunk of the SE wall of the lake was missing and must have been destroyed during the explosions. They also found that the lake was light gray due to large quantities of suspended sediments, had a temperature of 54 degrees Celsius, had a pH of 0.63, and the lake level had decreased in comparison to the level before the explosions.

Previous news
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.

[more]
Saturday, Mar 04, 2006

We hare glad to announce that we can now offer an additional date for the tour on Nisyros island, Greece, this autumn: 6-15 October 2006. Details to the tour are found here

[more]
Friday, Feb 24, 2006

The dates for the new expedition to Nyiragongo volcano are now set to 19-27 July, 2006. 3 spaces are still available. Details here.

[more]

Tuesday, Feb 07, 2006

Tom and Marco are just back home from our pilot tour to Nyiragongo volcano, which was very successful, so we plan to repeat the tour in July this year already. In the near future, we will post photos from the tour as well as details about the tour. Stay tuned!

... [more]
Friday, Dec 23, 2005

2005 is soon over, and it's a good time to take a break and think about important things in life. The VolcanoDiscovery team wishes you a future without wars and tsunamis. Merry Christmas!

[more]

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