Cumbal volcano (Colombia) activity update
Seismic unrest continues at the volcano, still on alert status Yellow, with little variation over the past months. The Pasto volcano observatory reported a 50% increase in earthquakes during the past week.
Fri, 30 May 2014, 09:5509:55 AM | BY: T
Most earthquakes were associated with internal fluid movements. The other quakes, all very small, were due to rock fracturing at shallow depths. No other signs of unrest were observed at the volcano recently.
Wed, 22 Jan 2014, 09:02
Seismic unrest at weak energy levels continues. 5 small earthquake swarms were recorded over the past week, the most prominent having 213 events up to a maximum of magnitude 1.9 during 5 hours on 19 Jan. Most quakes are associated with rock fracturing at shallow depths (3 km) beneath the La Plazuela crater. Pasto reports no unusual surface activity at the volcano. ... Read all
Wed, 18 Dec 2013, 13:01
INGEOMINAS reported slightly elevated seismic activity during the previous week at the volcano. Small earthquakes related to internal fluid movements are clustered at shallow depth (0-2 km) beneath the La Plazuela crater. ... Read all