Volcano news: Santa Maria (Guatemala)
Activity from Santiaguito continues but is at relatively low levels, generating ash and gas plumes of usually less than 1 km, but at relatively regular intervals of about 20 minutes....more
Santiaguito lava dome is showing an above average level of activity. Explosions from the lava dome produce ash plumes rising to altitudes of 4.3-4.7 km (14,000-15,400 ft) a.s.l., that drift mainly to the SW.
On 5 June, a lahar (mud flow) descended the Nima I river and carried blocks 1-1.5 m in diameter and tree branches. The approximately 12-m-wide and 3-m-thick deposit was hot and smelled of sulfur. Continuous landslides of blocks and ash were noted on the SW flank.
Santa María's Santiaguito lava dome is in an elevated stage of activity. Explosions produced ash plumes that rose to an altitude of 5 km (16,400 ft) a.s.l. on 29 March. Ashfall was reported near the Observatory Vulcanológico de Santiaguito (OVSAN), about 5 km S. On 2 April, INSIVUMEH reported that ash plumes rose to 4.4 km (14,400 ft) a.s.l. and drifted SW....more
Explosions from Santa María's Santiaguito lava dome continue, producing ash-and-steam plumes to altitudes of 3.8-4.8 km (12,500-15,700 ft) a.s.l. Ashfall was reported from nearby areas. On 25 and 26 March, avalanches occurred from lava-flow fronts on the SW flanks of Caliente Dome. On 27 March, an explosion produced a pyroclastic flow that traveled down the SW flank....more
Santa Maria volcano is in a heightened state of activity. On 28 Dec. 2006, INSIVUMEH reported a series of small sector collapses from the SW edge of Santa María's Caliente dome that produced pyroclastic flows travelling ca. 2 km down a ravine.
On 29 December, another collapse produced pyroclastic flows and incandescent blocks. Thick ash plumes associated with the pyroclastic flows on both days reached an altitude of 4.3 km (14,000 ft) a.s.l. and drifted W and NW.
Washington VAAC reported minor emissions of gas and possible ash visible on satellite imagery on 1 and 2 January.