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Santa Maria volcano (Guatemala) - Smithsonian / USGS Weekly Volcanic Activity Report for 20 January-26 January 2021 (Continuing Activity)

Wed, 20 Jan 2021, 06:00
06:00 AM | BY: VN
INSIVUMEH reported that during 19-25 January explosions at Santa María's Santiaguito lava-dome complex generated ash plumes that rose 600-900 m above the complex. The extrusion of blocky lava at Caliente dome generated block-and-ash flows that mainly descended the W and SW flanks, often reaching the base of the complex. Ash plumes drifted W and SW during 20-21 January, causing ashfall in Loma Linda (6 km WSW) and San Marcos Palajunoj (8 km SW).
On 22 January collapses of material to the E and SE generated pyroclastic flows.

Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)
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From: Global Volcanism Program, 2021. Report on Santa Maria. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 20 January-26 January 2021. Smithsonian Institution and US Geological Survey.

Previous news

Wed, 30 Dec 2020, 06:00
INSIVUMEH reported that during 29 December-5 January explosions at Santa María's Santiaguito lava-dome complex generated ash plumes that rose 800-900 m above the complex. Plumes sometimes drifted about 1 km SW. The extrusion of blocky lava at Caliente dome generated block-and-ash flows that descended the NW, W, SW, and E flanks, often reaching the base of the complex. ... Read all
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