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Santa Maria volcano (Southwestern Guatemala) - Smithsonian / USGS Weekly Volcanic Activity Report for 3 August-9 August 2022 (Continuing Activity)

jeu., 4 août 2022, 10:00
10:00 AM | AUTEUR : VN
INSIVUMEH reported that the eruption at Santa María's Santiaguito lava-dome complex continued during 2-9 August. Lava flows continued to advance in the San Isidro and El Tambor drainages on the W and SW flanks and were as long as 3.7 km by 5 August. Block avalanches from the W part of Caliente cone, and from both the ends and sides of the flows descended the S, SW, and W flanks.
The avalanches generated ash plumes that rose about 1 km and drifted SW, S, and E, causing ashfall in areas downwind including La Florida, Monte Claro, San Marcos Palajunoj, Loma Linda, and Las Marías. Incandescence from Caliente cone and the lava-flow fronts was sometimes visible at night.

Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)
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From: Global Volcanism Program, 2022. Report on Santa Maria. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 27 July-2 August 2022. Smithsonian Institution and US Geological Survey.

Actualités précédentes

jeu., 7 juil. 2022, 19:51

Santiaguito volcano (Guatemala): elevated activity, lava blocks tumble down from Caliente dome

Ash column (phoenix cloud) separated from the block-and-ash flow emanating from Santiaguito volcano (image: COLRED)
The extrusive eruption of the volcano continues at high levels over the past month. ... Read all
mer., 6 juil. 2022, 14:00

Santa Maria volcano (Southwestern Guatemala) - Smithsonian / USGS Weekly Volcanic Activity Report for 29 June-5 July 2022 (Continuing Activity)

INSIVUMEH reported that the eruption at Santa María's Santiaguito lava-dome complex continued during 29 June-5 July. Incandescence from Caliente crater and the lava flows on the W and SW flanks was visible nightly. Lava flows continued to advance in the San Isidro channel and were 3 km long by 1 July. ... Read all
Montrer plus
Santa Maria volcano satellite image (c) Google Earth View
Santa Maria volcano satellite image (c) Google Earth View
Stratovolcano 3772 m (12,375 ft)
Guatemala, 14.76°N / -91.55°W
Condition actuelle: en éruption (4 sur 5) Eruptions du volcan Santiaguito:
1902 (catastrophic Plinian eruption of Santa Maria), 1903, 1922-ongoing (Santiaguito dome complex)
Style éruptif tipique
Dominantly explosive, formation of lava domes

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