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Nevado del Ruiz still on Yellow Alert: Colombian Geological Survey

U.S.A.Nevado del Ruiz still on Yellow Alert: Colombian Geological...

Nevado del Ruiz. /colpressa

NS Colombian Geological Survey A new alert was issued this Friday as a result of changes in Nevado del Ruiz Volcano Activity, which has been exhibiting unstable behavior for just over a month. According to the organization, the seismicity inside the mountain is increasing in recent days.

“During the time that has elapsed from the PMU of October 14 to the present day, the Nevado del Ruiz volcano. Continued to show unstable behavior. Seismic activity continued to intensify, mainly related to the movement of fluids inside the volcanic ducts”, indicated the service through an official report.

Initially, he explains, this seismicity was characterized by continuous volcanic movements, but it maintained low to moderate levels. Even then, During the past month, vibration pulses, long-term and very long-lasting earthquakes with variable energy levels have been detected, mainly in Arenas Crater.

“Additionally, there was a slight increase in seismicity resulting from rock fracturing, typically of low to moderate energy, Located in Arenas Crater at a depth of less than 2 km, and at sources near and outside the crater, respectively, at depths of 2 and 5 km, and between 4 and 7 km.

above, and a series of aftershocks known as sound of drum, of lower energy level, are related to the fact that the bottom of the crater above is currently crossing A process of ascent, location, growth and development of a lava dome.

On this he explained to the service that, “deformation of the volcanic surface, measured by GNSS (Global Navigation Satellite System) stations and electronic inclinometers continues to show minor changesS “. Everything, in turn, continues to emit water vapor and gases to the volcano, mainly sulfur dioxide (SO2).

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Added to this are ash emissions that have been recorded in municipalities in recent times such as Lebanon, Hervio, Casabianca and Villehermosa in Tolima; Armenia and Finland in Quindo; Pereira and Santa Rosa de Cabela in Risaralda; And, Manizales, Willamaria and Chinchinas In Kaldas.

However, from the service, in the company of the Ministry of Mines and Energy, he warned that, “Nevado del Ruiz Volcano continues at a level of yellow activity, at this stage may Events like earthquake swarms (some of them felt), ash emissions, lahars, morphological changes, noise and smell of volcanic gases, among others, which can alter the quality of life of the population in the volcanic area of ​​impact”.

Simultaneously, the institutions indicated that it is important that the departments whose population is in the mountain’s sphere of influence. Do not get used to his behavior and, on the contrary, keep track of official information Published by risk monitoring and control agencies.

“It is reiterated to the officials of the departments of Caldas, Tolima, Risaralda, Cundinamarca and Quindio that Extreme actions focused on awareness and risk reduction practices, as well as disaster management as preliminary measures for the future activity of the Nevado del Ruiz volcano”, he indicated from the Geological Survey, monitoring work around this event will continue.

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