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Nevado del Ruiz volcanostratovolcano 5321 m / 17,457 ftColombia, 4.9°N / -75.32°W Nevado del Ruiz volcano eruptions: 1994, 1985-91, 1984-85, 1916, 1845, 1833?, 1831, 1829, 1828, 1826(?), 1805, 1623, 1595, 1570, 1541(?) Typical eruption style: explosive Nevado del Ruiz webcams / live data Last earthquakes nearby Nevado del Ruiz volcano: activity summary 24 to 30 September 2012Wednesday Oct 03, 2012 12:05 PM | BY: T
 Current seismogram from Nevado del Ruiz (OLL station, INGEOMINAS) Nevado del Ruiz volcano continued to have seismic activity associated mainly with rock fracturing within the volcanic edifice, which was located north, northeast, south and southeast of Arenas crater, at depths ranging from 1 to 6 km. The highest magnitude recorded during the last week was 1.0 (Local Magnitude ML), corresponding to an earthquake that occurred on September 27 at 04:53 (local time). Also, there was low-energy seismic activity related to fluid dynamics in volcanic conduits, located both in the Arenas crater, and to the east and southeast of it. There were further signs associated with small explosions and / or gas and ash emissions. There is significant steaming and sulfur dioxide (SO2) emission. The gas and steam column reached a maximum height of 1800 m, and mostly drifts towards N, NW and W.
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Previous news
Wednesday, Sep 26, 2012
INGEOMINAS reports: During the last week Nevado del Ruiz volcano continued to record seismic activity primarily associated with rock fracturing within the volcanic edifice, which was located south and northeast of Arenas crater, at depths ranging from 1 to 9 km. ...
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Tuesday, Sep 25, 2012
Strong degassing and an important SO2 emission are the current activity of Ruiz. Seismicity is low and there is no tremor visible.
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Thursday, Sep 20, 2012
A strong SO2 plume was visible on NOAA's satellite image. At the moment, the seismogram shows some heightened activity as well, but there are no reports of an eruption.
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Wednesday, Sep 19, 2012
Occasional small explosions with steam and sometimes ash emissions continue to occur at the volcano. There have been shallow earthquakes up to magnitude 1.8 at depths of 1-8 km north of the Arenas crater and weak tremor pulses over the past 7 days.
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