Nevado del Ruiz volcano news & activity updates
Nevado del Ruiz volcano (Colombia): magnitude 2.9 earthquake
Thursday Feb 18, 2016 12:05 PM | DOOR: T
A shallow earthquake of magnitude 2.9 occurred under the volcano at 17:22 local time yesterday (17 Feb), the Manizales volcano observatory reported. The event could be felt by the local population.
Location of the M2.9 earthquake under Nevado del Ruiz on 17 Feb 2016
During 9-15 February seismicity at Nevado del Ruiz was characterized by long-period earthquakes and pulses of volcanic tremor associated with gas-and-ash emissions. Earthquakes occurred at depths between 1 and 7.6 km. The largest event was recorded at 0857 on 10 February; it was a local M 1.1, N of Arenas Crater at a depth of 5.7 km.
Significant amounts of water vapor and gas rose from the crater during the week. A gas, steam, and ash plume rose 1.5 km and drifted NW on 13 February. The Alert Level remained at III (Yellow; "changes in the behavior of volcanic activity").
Source: Global Volcanism Program, 2016. Report on Nevado del Ruiz (Colombia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 10 February-16 February 2016. Smithsonian Institution and US Geological Survey.)
Monday, Sep 21, 2015
The internal and external activity of the volcano has increased during the past two weeks. Several pulses of tremor were accompanied by ash emissions that produced plumes that rose up to 1.5 2.5 km above the crater, last on 17 and 19 Sep. As fall occurred in areas west of the volcano including Pereira, Dosquebradas, Santa Rosa, Chinchiná, Villamaría, and Manizales. ... [meer...]
Tuesday, Sep 15, 2015
The Servicio Geológico Colombiano (SGC) Observatorio Vulcanológico y Sismológico de Manizales reported continuing volcanic tremor at Nevado del Ruiz associated with gas-and-ash emissions. ... [meer...]
Monday, Aug 31, 2015
A phase of ash emissions occurred early today at the volcano. A strong pulse of volcanic tremor started at 03:21 local time. ... [meer...]
Saturday, Aug 08, 2015
Sporadic ash emissions continue to occur from time to time at the volcano. A tremor episode on 6 August that started at 08:39 local time and lasted a few minutes was accompanied by the expulsion of ash that rose approx. 700 m. ... [meer...]
Wednesday, Jul 22, 2015
Intermittent ash emissions began to occur at the volcano again since 13 July. The volcano observatory of Manizales reports increased seismic activity, related to internal fluid movements and rock fracturing processes. ... [meer...]