NevadodelRuiz News

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An increasing trend of the activity started at the volcano yesterday, reflecting a rise of seismic swarms.

8,800 earthquakes have been detected, of which the strongest has been located with a maximum magnitude of 2.6 at 12:36 local time. Seismic recordings have shown continuous ground vibrations, mainly beneath the southwestern area at depths between 2 and 5 km. Magma at shallow depth is presumably able to pressurize and fracture surrounding rocks that allow it to rise further. Elevated movements of gas, water and possibly magma likely generate seismic energy.
According to the Servicio Geológico Colombiano (SGC), an eruption released an ash plume up to 6,6 km altitude and drifted southwest and southeast.
Thus, a decision has been made to rise the alert level to "Orange". It is inevitable to emphasize that the activity of the volcano may fluctuate and suddenly decrease to lower levels.
Source: Servicio Geológico Colombiano volcano activity update 1 April 2023

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