Nevado del Ruiz volcano (Colombia): Red Alert declared
Tuesday Apr 10, 2012 19:03 PM | BY: T
The Colombian authorities have declared a red alert for the area around the volcano Nevado del Ruiz and warn the population against the feared mud flows (lahars) that are to be expected in an eruption of the volcano. The status of the volcano itself is described as eruption likely in the coming days or weeks.
The reason is a steady increase in seismic activity and gas emissions from the summit crater. In recent days, more and more, usually small earthquakes have been occurring at shallow depths under the volcano, some of them felt. A steam nd gas plume is rising from the crater to 1.5 km and sulfur smell can be noticed in nearby villages and towns.
430 000 inhabitants from the valleys of the Río Chinchina, Manizales and four other rivers have been warned of mud flows and possible floods, which could be triggered especially during heavy rains, even when there is no eruption.
Tuesday, Apr 03, 2012
Nevado del Ruiz seems to be getting closer to a new eruption. INGEOMINAS reports that during the last week, there has been a significant increase in the activity of the volcano, which can be summarized as follows: ... [more]
Thursday, Mar 29, 2012
During 19-25 March seismicity at Nevado del Ruiz increased and gas emissions remained at significant levels. Gas plumes rose 2 km above Arenas crater and sulfur dioxide odors were reported by local people. [more]
Thursday, Mar 22, 2012
During 12-18 March seismicity at Nevado del Ruiz decreased but gas emissions remained at high levels, with gas plumes rising 2 km above the crater and sulfur dioxide odors noticed by local people. [more]
Friday, Mar 09, 2012
Colombia's Nevado del Ruiz volcano has been showing increasing signs of volcanic unrest and might be close to an eruption, INGEOMINAS reports in their latest special bulletin. ... [more]
Sunday, Feb 26, 2012
From 12:30 hours local time on February 23, a new increase in seismic activity of the Nevado del Ruiz volcano began, characterized by the occurrence of shallow earthquakes associated with fluid movements and fracturing of rock. INGEOMINAS also measured increased SO2 emissions and some changes in strain measurements. ... [more]