Servicio Geológico Colombiano?s (SGC) Observatorio Vulcanológico y Sismológico de Manizales reported that during 8-14 August seismicity at Nevado del Ruiz continued to indicate unrest; seismicity decreased as compared to the previous week.
Plumes of water vapor and gas continued to be emitted from the volcano.
A gas-and-steam plume rose 450 m above the crater rim on 8 August and drifted NW.
A thermal anomaly was identified on 14 August.
The Alert Level remained at III (Yellow; the second lowest level on a four-color scale).
Source: Servicio Geológico Colombiano (SGC)