Santa María, Guatemala

INSIVUMEH reported that on 22 July seismic stations monitoring Santa María’s Santiaguito lava dome complex detected a lahar below the S flank in the Nima I river. Explosions observed on 23, 28, and 29 July from Caliente cone produced ash plumes that rose to altitudes of 2.8-3.3 km (9,200-10,800 ft) a.s.l. and drifted SW and [...]

Santa María, Guatemala

Santa Maria, the 1902 crater, and Santiaguito    
Click to visit the VW page on Santa Maria! 
On 4 July, INSIVUMEH reported that an explosion from Santa María’s Santiaguito lava dome complex produced an ash plume that rose to an altitude of 3.3 km (10,800 ft) a.s.l. and drifted SW. A lahar traveled S down the Nima [...]

Santa María, Guatemala

During 19-24 June, INSIVUMEH reported that weak-to-moderate explosions from Santa María’s Santiaguito lava dome complex produced ash plumes that rose to altitudes of 2.8-3.3 km (9,200-10,800 ft) a.s.l. and drifted SW and S. An incandescent lava flow accompanied by constant avalanches of blocks descended the SW flank. On 20 June, a lahar traveled S down [...]

Santa María, Guatemala

INSIVUMEH reported that lahars caused by heavy rainfall descended multiple drainages on Santa María on 3 June. On 9 June, a lahar about 15 m wide and up to 2 m deep descended S down the Nima I river, carrying blocks up to 1 m in diameter and smelling of sulfur.
Source: Instituto Nacional de Sismologia, [...]

Santa María, Guatemala

INSIVUMEH reported explosions from Santa María’s Santiaguito lava dome complex during 22-27 May. Resultant ash plumes seen during breaks in cloud cover rose to altitudes of 4.1-4.4 km (13,500-14,400 ft) a.s.l. and drifted S and SW. Ashfall was reported in areas nearby. Avalanches of blocks on the SW flanks were seen and heard. A lahar [...]

Santa María, Guatemala

Based on observations of satellite imagery, the Washington VAAC reported that ash puffs from Santa María’s Santiaguito lava dome complex drifted NW on 13 May.
Source: Washington Volcanic Ash Advisory Center (VAAC) - “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

Santa María, Guatemala

INSIVUMEH reported explosions from Santa María’s Santiaguito lava dome complex during 15-21 April. Resultant ash plumes rose to altitudes of 4.1-4.7 km (13,500-15,400 ft) a.s.l. and drifted SW. Constant avalanches on the W and S flanks were noted. Based on observations of satellite imagery, the Washington VAAC reported that an ash plume drifted SW on [...]

Santa María, Guatemala

Based on observations of satellite imagery, the Washington VAAC reported that ash puffs from Santa María’s Santiaguito lava dome complex drifted SW on 1 April.
Source: Washington Volcanic Ash Advisory Center (VAAC) - “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

Santa María, Guatemala

INSIVUMEH reported on 6 February that avalanches from lava flows on the W flank of Santa María’s Santiaguito lava dome complex continued. Explosions produced ash-and-steam plumes that rose to an altitude of 3.9 km (12,800 ft) a.s.l. On 8 February, a strong phreatic explosion produced an ash plume that rose to an altitude of 4.7 [...]

Santa María, Guatemala

Based on observations of satellite imagery, the Washington VAAC reported that an ash plume from Santa María’s Santiaguito lava dome complex rose to an altitude of 5.2 km (17,000 ft) a.s.l. and drifted SW on 21 December.
Source: Washington Volcanic Ash Advisory Center (VAAC) - “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the [...]