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Fuego volcano (Guatemala) activity summary (13-18 Sep)Wednesday Sep 19, 2012 12:05 PM | BY: T
In a special bulletin on 13 September, INSIVUMEH reported that activity at Fuego increased, starting the sixth eruption in 2012. Lava flows traveled 600 m down the Taniluyá drainage (SSW) and the Las Lajas drainage (SE), producing block avalanches that reached vegetated areas. Strombolian explosions generated ash plumes that rose 3 km above the crater and drifted SW and 12 km W. Ash fell in multiple areas, including the villages of Panimaché (8 km SW), Morelia (8 km SW), Santa Sofia (12 km SE), Sangre de Cristo (8 km WSW), Palo Verde, San Pedro Yepocapa (8 km NW), Santiago Atitlan (42 km NW), San Lucas Toliman (32 km NW), Mazatenango (68 km W), Suchitepéquez, Retalhuleu (86 km W), and Santa Lucia Cotzumalguapa (23 km SW). Explosions produced degassing sounds and rumbling noises, accompanied by shock waves that vibrated structures on the SW flank. Pyroclastic flows traveled down the Las Lajas and Ceniza (SSW) drainages, producing ash plumes. CONRED increased the Alert Level to Orange (third highest on a four-color scale). About 10,600 people evacuated from nearby communities including Yepocapa, San Juan Alotenango (9 km ENE), Sacatepéquez. Evacuation shelters were set up in Santa Lucia Cotzumalguapa. Later that day seismicity decreased, ash plumes rose 300 m above the crater and drifted W and NW, fewer pyroclastic flows were observed, and the rate of explosions slowed. Ashfall was reported in Panimaché, Morelia, and Sangre de Cristo. Lava flows in the Ceniza drainage were 1 km long and 150 m wide, and in Las Lajas were 700 m long and 100 m wide. CONRED noted that residents began to return to their homes on 14 September. During 14-18 September explosions generated rumbling noises; ash plumes that rose 400-900 m above the crater drifted 7-8 km W and SW, causing ashfall in Sangre de Cristo, Panimaché I, and Panimaché II. Lava flows were at most 1.2 km long in the Taniluyá drainage and 200 m long in the Ceniza drainage during 14-16 September; flows were not observed during 17-18 September.
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Previous newsTuesday, Sep 18, 2012
Sporadic explosions with ash plumes of 500-900 meters above the crater were reported and some of them had rumbling noises and felt shock waves. No lava flows.
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Monday, Sep 17, 2012
INSIVUMEH reports weak and some moderate explosions with fine ash plumes rising to 400 to 800 meters, moving at 8 km west, and creating light ash fall in the areas of Sangre de Christo, Panimache I and II to the west. The explosions were sometimes accompanied by rumbling sounds. The lava flows have now disappeared.
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Sunday, Sep 16, 2012
Activity remains at normal levels with sporadic weak to moderate explosions with ash rising 400-800 meters and some rumbling sounds. The lava flow to the Taniluya canyon has apparently decreased a lot, as INSIVUMEH reported it to be only 50 m long yesterday.
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Saturday, Sep 15, 2012
In the course of the night there were 7 explosions, 4 weak and 3 moderate expelling fine ash at 500 and 800 meters above the crater. The stronger explosions were accompanied by rumbling noises and created plumes that drifted 7 km to the west and SW where fine ash fall occurred in the Sangre Cristo area. ...
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The Fuego volcano eruption has decreased to normal activity, INSIVUMEH reports last night. The seismic station FG3 shows signals typical for weak explosions that send fine ash clouds up to 500 meters above the crater. ...
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