Sunday, Sep 09, 2012

At 07:32 local time 9 Sep, a 3.6 magnitude quake occurred at 3.2 km depth beneath the summit of the volcano. Seismicity had been elevated since 8 Sep and stronger than normal seismic activity has been following the quake today. This is the most energetic seismic activity at the volcano for probably more than a year. [more]

Wednesday, Sep 05, 2012

Weak volcanic quakes concentrated SE of the main dome at depths between 3.0 - 9.5 km occurred during the past week. [more]

Wednesday, Aug 29, 2012

No significant changes have been occurring. Weak seismic unrest continues at Cerro Machín with some small volcanic quakes clustered at depths between 3-6 km south and southwest under the main summit. The largest event was a magnitude 0.55 on 22 August at 08:27 local time. [more]

Tuesday, Aug 07, 2012

Seismicity at Machin remains at slightly elevated levels with some weak earthquakes SE under the lava dome at depths between 3.5 and 5 km. [more]

Tuesday, Nov 11, 2008

Machín volcano in Tolima (Columbia) became active over the weekend as Columbian newspapers reported. Hundreds of families living in the area surrounding the volcano had to be evacuated. ... [more]