Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Volcanoes & Earthquakes - app for iPhone & iPad

Guaranteed tours:
2-18 Nov 2019: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
17-21 Nov 2019: Krakatau Volcano Special - Krakatau volcano (Indonesia)
17-30 Nov 2019: Desert, salt and volcanoes - Danakil desert (Ethiopia)
9-17 May 2020: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
11-29 Aug 2020: Kamchatka - Land of Colors - Kamchatka (Russia)
: spaces available / : guaranteed / : few spaces left / : booked out

Support us?


Maintaining the volcano and earthquake news sections on this website, the free Volcano Webcams tool and interactive map widget is a free-time, both time- and server cost intensive effort.
If you find the information useful and would like to support us, and help keep it alive and improve it, please consider making a small donation (PayPal).

Online cc payment
Thank you!
Random pictures
Watch volcanoes live on our webcam and online data viewer tool!

 

Nevado del Ruiz volcano (Colombia): increasing volcanic unrest

Friday Mar 09, 2012 17:14 PM | BY: T

The snow-caped summit and steaming crater of Nevado del Ruiz volcano on 8 March
The snow-caped summit and steaming crater of Nevado del Ruiz volcano on 8 March
Nevado del Ruiz volcano's crater seen on 8 Mar 2012. Scientists measured a strong heat source.
Nevado del Ruiz volcano's crater seen on 8 Mar 2012. Scientists measured a strong heat source.
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.
An overflight on 8 March revealed intense steaming from the main crater and the presence of ash on the summit glacier, the crater rim and on the volcano's eastern flanks, probably from the phreatic explosions reported earlier since 22 Februry. The steam plume reached an inpressive 1400 m (4,500 ft) height.
In addition, a thermal anomaly can be identified in the crater and levels of SO2 emission, as well as seismic activity with tremor signals have increased. This all adds to the likelyhood of a new eruption from the volcano, which, during its infamous 1985 eruption, killed about 30,000 people by a deadly lahar in the village of Armero.
---
Links / Sources:

Nevado del Ruiz volcano (Colombia), activity update: increase in shallow earthquakes under Arenas crater

Sunday Feb 26, 2012 06:56 AM | BY: T

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.
So far, the energy level of this increase is low compared with previous episodes of unrest, but small eruptions in the near future are possible.
The seismicity is located under the active Arenas crater at depths ranging between 0.5 and 3 km, and reached a maximum recorded magnitude of 1.4 on the Richter scale.
---
Links / Sources:
Previous news
Thursday, Feb 23, 2012
The new Smithsonian / USGS Weekly Volcanic Activity Report is out. Updates include: ... [more]
Saturday, Feb 18, 2012
Photos from our last tour to Guatemala (Jan 2012) - Pacaya, Atitlan, Santiaguito and Fuego volcano are now online! The next tours to Guatemala: 8-21 Dec 2012 and 22 Dec 12 - 4 Jan 13. [more]
Wednesday, Feb 15, 2012
The new USGS / GVP weekly activity updates report is now available. The summary: ... [more]

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.