Santa Maria volcano (Guatemala) - Smithsonian / USGS Weekly Volcanic Activity Report for 22 September-28 September 2021 (Continuing Activity)
INSIVUMEH reported that almost daily ash plumes from Santa Maria's Santiaguito lava-dome complex rose 500-900 m and drifted W and SW during 19-27 September, depositing ash on the flanks. Extrusion continued at the summit dome complex, mainly from the W part of the dome. Avalanches produced by the active dome were sometimes incandescent and predominantly descended the W flank, though some also traveled S and SW.
Wed, 22 Sep 2021, 06:0006:00 AM | BY: VN
The avalanches often reached vegetated areas on the flanks.
Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)
From: Global Volcanism Program, 2021. Report on Santa Maria. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 22 September-28 September 2021. Smithsonian Institution and US Geological Survey.
Sat, 18 Sep 2021, 14:45
Wed, 18 Aug 2021, 06:00
Santa Maria volcano (Guatemala) - Smithsonian / USGS Weekly Volcanic Activity Report for 18 August-24 August 2021 (Continuing Activity)
INSIVUMEH reported that daily ash plumes from Santa Maria's Santiaguito lava-dome complex during 18-25 August rose to 2.8-3.5 km (9,200-11,500 ft) a.s.l. and drifted as far as 8 km W and SW. Ashfall was reported in San Marcos (8 km SW), Loma Linda Palajunoj (6 km WSW), and surrounding farms on 24 August. ... Read all