Fuego volcano, Guatemala: increased activity, constant explosions, lava flows

Fuego volcano's activity has increased. Seismic recordings monitor rising tremor and there are (for now weak) constant explosions ejecting ash to 900 meters above the crater forming plumes of 8 kilometers in two directions ,one south and one to the southwest. This activity generates constant moderate degassing sounds, audible to 10 kilometers distance. Reports of OVFGO Volcano Observatory indicate incandescent material being ejected to 100 m height.
At the moment there are two lava flows towards the canyons Taniluya and ash reaching 600 and 800 meters length, producing constant block avalanches that reach vegetation. On the southeast flank, there is a third lava flow toward the canyon Las Lajas.
As in previous occasions, this increase in activity can generate pyroclastic flows in the course of hours (pyroclastic material and gases at high temperatures) that can run down the canyons on the southeast and southwest flank.

According to the evolution of this activity INSIVUMEH recommends:
TO CONRED, maintain alertness deemed necessary according to the increased activity of Fuego volcano.
TO CIVIL AVIATION, take precautions with air traffic as ash columns can be expelled more than 1500 meters above the crater and move upwind at greater distances in the course of the activity.

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• BOLETIN VULCANOLOGICO ESPECIAL BEVFO # 54-09-2012 (INSIVUMEH)

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