News & activity updates from Sotara volcano
Sotará volcano (Colombia) activity update from 19 to 25 September 2012
Wednesday Sep 26, 2012 09:10 AM | BY: T
Current SOSO seismogram from station (INGEOMINAS)There were a total of 36 seismic events associated with fracturing of rock, of which 29 were characterized by low energy level. The remaining, higher energy level, were located mainly in an area between 1 and 2 km north of the volcano, at depths between 1 and 6 km and with local magnitudes around 0.1 degrees on the Richter scale.
The network of electronic inclinometers for monitoring deformation showed stable behavior.
Monitoring of surface activity at the volcano was done using the webcam installed at the place called Cerro Crespo. When weather conditions allowed, it was possible to capture images of the volcano, in which no morphological changes were evident.
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Links / Sources:
Wednesday, Sep 19, 2012
Small earthquakes at shallow depth, 25 in total during the past 7 days, continued to occur at 1-6 km depth in an area 1-2 km N of the summit. [more]
Thursday, Sep 13, 2012
Swarms of small quakes and longer tremor pulses appear on the seismic recordings and seem elevated compared to the recent days. [more]
Wednesday, Sep 12, 2012
Seismic unrest continues at Sotará. In the week between 5-11 Sep there were in total 82 events, INGEOMINAS reports. This includes about 50 small quakes of magnitudes between 0.1-1.6 at shallow depths of 1-6 km in an area 1-2 km north of the summit. [more]
Tuesday, Sep 11, 2012
Seismicity is up and down at Sotará volcano with periods of increased activity and small quake swarms of several hours alternating with quiet intervals. [more]
Wednesday, Sep 05, 2012
Weak seismic unrest continues. A number of quakes between magnitudes 0.1-1 were recorded 1-2 km north of the summit in an area at 4-5 km depth. Weak inflation of the NE sector of the volcano continues to be visible. [more]