Nevado del Ruiz volcano news & activity updates
Nevado del Ruiz volcano (Colombia) activity update: increased seismic activity, strong degassing
Seismicity at Nevado del Ruiz decreased during 11-15 April then slightly increased during 16-17 April, but remains at elevated levels.
Thu, 19 Apr 2012, 10:0510:05 AM | BY: T
Earthquakes were located below or N of Arenas crater at depths of 1.5-2 km during 11-12 April. Earthquake events at 1146 and 1149 on 15 April were possibly associated with ash emissions which were not verified due to weather conditions. Earthquakes detected on 16 April occurred E of Arenas crater at depths of 1.5-4 km.
Gas-and-steam plumes were observed mainly in satellite imagery, by cameras located near the volcano, and from the city of Manizales (25 km NW).
On 12 April a sulfur odor was reported in the towns of Lebanon, Palocabildo, and Fresno (Tolima). Observes in Manila reported a gas-and-steam plume that rose 1.8 km above the crater on 16 April. The Alert Level remained at II (Orange; "eruption likely within days or weeks").
(Smithsonian / USGS Weekly Volcanic Activity Report)
Tue, 10 Apr 2012, 17:03
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. ... read all
Tue, 3 Apr 2012, 17:02
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: ... read all
Thu, 29 Mar 2012, 10:05
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. ... read all
Thu, 22 Mar 2012, 07:35
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. ... read all
Fri, 9 Mar 2012, 17:14
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. ... read all