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Earth of fire

Actualité volcanique, Article de fond sur étude de volcan, tectonique, récits et photos de voyage

Publié par Bernard Duyck

The Turrialba maintains an activity made frequent eruptions

On 16 May, an eruption, starting at 15h07, was accompanied by a small pyroclastic flow.


 

Volcán Turrialba. 16 mayo 2015 - Webcam OVSICORI & Información Dr. Javier Pacheco

Volcán Turrialba. 16 mayo 2015 - Webcam OVSICORI & Información Dr. Javier Pacheco

 Turrialba - the ash plume of 05/17/2015 - photo Reina Sánchez S. via RSN

Turrialba - the ash plume of 05/17/2015 - photo Reina Sánchez S. via RSN

On 17 May, ash plumes are reported by the RSN.

On 18 May, the CNE / Comisión Nacional de Emergencias decided to increase the access restriction zone around the crater: it is passed from two to five kilometers.

This measure will remain in effect for at least one week to allow the Ovsicori and RSN to carry out a monitoring and observations to assess the evolution of Turrialba and its regional impact.
 

Seismogram with indications of eruptive episodes at the Turrialba 180.05.2015 - Doc. RSN

Seismogram with indications of eruptive episodes at the Turrialba 180.05.2015 - Doc. RSN

Turrialba - 18.05.2015 / 10:17 - webcam OVSICORI

Turrialba - 18.05.2015 / 10:17 - webcam OVSICORI

At least six eruptive episodes, lasting between 19 and 30 minutes, occurred during the day of 18 May. The RSN / Red Nacional Sismológica recorded five episodes of tremor on a diagram (shown after the arrow)at respectively 4h16, 6h49,12h14,13h44 and 14h25..

At 15h38, an emission of ash suggests a new eruption in progress. Because of the cloud cover, it was not observed.

 

Turrialba - simultaneous view from the webcam of Turrialba, on the left and that of Irazu, on the right - Doc. Fiorella Castro

Turrialba - simultaneous view from the webcam of Turrialba, on the left and that of Irazu, on the right - Doc. Fiorella Castro

Turrialba - 05/18/2015 - A new eruption began at 1:44 p.m. - Fotografía Raúl Mora-Amador / RSN

Turrialba - 05/18/2015 - A new eruption began at 1:44 p.m. - Fotografía Raúl Mora-Amador / RSN

Sources :

- OVSICORI-UNA

- R.S.N.

- C.N.E.

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