edited title: Sotarį volcano (Colombia): increase in seismic activity triggers raise in alert level

Quote:

http://www.volcanodiscovery.com/sotara/n....
Aug 09, 2012

The recent increase in seismic activity under Sotarą volcano promted INGEOMINAS to raise the alert level from yellow (unrest) to orange (eruption warning) yesterday afternoon.

The increase had been detected on June 24, 2012 and since that date, 6891 earthquakes have been recorded, i.e. an average of 150 quakes per day. Most of them (5177) are of very small magnitude, but the remaining 1714 quakes were of significant energy (local magnitudes 0.1-2.2) and concentrated in an area between 0.1 and 5 km northeast of the volcanic summit at depths between 2 and 6 km.

None of these events were felt by inhabitants of the communities surrounding the volcano Sotarį.