Nevado del Ruiz (Colombia) – Report for 25 August-31 August 2021

Servicio Geol�gico Colombiano?s (SGC) Observatorio Vulcanol�gico y Sismol�gico de Manizales reported that during 25-31 August seismicity at Nevado del Ruiz had generally decreased compared to the previous week. Deformation data indicated minor changes. Gas-and-steam emissions were sometimes visible in satellite data and webcam images rising as high as 1.2 km above the summit and drifting NW and W. These emissions sometimes contained ash; on 26 August an ash emission rose 490 m and drifted WNW. The Alert Level remained at 3 (Yellow; the second lowest level on a four-color scale).

Source: Servicio Geol�gico Colombiano (SGC)

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