Report on field observations after the eruption of October 16, 2015.
The deposits indicate a moderate energy eruption similar to those that occurred last year.
On October 18, officials of the OVSICORI visited the Turrialba volcano, to maintain permanent gas monitoring stations and study the deposits of the eruption that took place on October 16, 2015 at 17:49.
The researchers found deposits of thin (<1 mm) of fine ash near the Mirador and in the direction of Silvia. Bombs up to a diameter of 20 cm were found in the southwestern edge of the crater, and a solar panel located in a west side of monitoring station of the active crater was destroyed by ballistic fall / lapilli (~ 2 cm in diameter).
Also, it is observed with evidence on the ground a recent landslide in the active crater. Rock falls are very common with the instability of very vertical walls, but the size of the slide and the absence of ash covering the wall suggests that it occurred in recent days.
21/10/2015. Turrialba, Costa-Rica :
Source : OVSICORI