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Santa Maria volcano satellite image (c) Google Earth View
Santa Maria volcano satellite image (c) Google Earth View
Santiaguito volcano
Stratovolcano 3772 m (12,375 ft)
Guatemala, 14.76°N / -91.55°W
Current status: erupting (4 out of 5)
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Santiaguito volcano eruptions:
1902 (catastrophic Plinian eruption of Santa Maria), 1903, 1922-ongoing (Santiaguito dome complex)
Typical eruption style:
Dominantly explosive, formation of lava domes
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Volcano news: Santa Maria (Guatemala)

Santiaguito volcano (Guatemala) activity update: explosions, lava dome growth, lava flow and occasional pyroclastic flows

Thursday Mar 29, 2012 10:05 AM | BY: T

Santiaguito volcano's activity remained at elevated levels during the past week, the latest USGS / GVP activity summary shows.
Several block lava flows are traveling down from the dome, and generate glowing avalanches. Frequent explosions produce ash plumes rising 800-900 m above the lava dome. An explosion on 26 March produced pyroclastic flow on the western flank of the cone.
Satellite images detected several plumes extending up to 33 km in south-westerly directions. Ash fall occurred in up to about 10 km distances in areas to the south at the Observatory Vulcanológico de Santiaguito (OVSAN), and to the SW at the El Faro, La Florida, and Patzulin ranches (SW), as well as in the village of Santa María de Jesús (SE).
Previous news
Thursday, Mar 15, 2012
8-9 March explosions from Santa María's Santiaguito lava-dome complex generated ash plumes that rose 800-1,000 m above the crater and drifted W and SW. Block avalanches descended the SE and NW flanks. Ashfall was reported in the communities of Loma Linda, San Marcos, and Palajunoj. During 11-12 March explosions generated ash plumes that rose 800 m above the crater and drifted 20 km SSW. Ashfall was reported at the observatory, on the El Faro and Patzulin ranches, and in the village of Las Marías. Lava flows continued to produce avalanches. ... [more]
Thursday, Mar 08, 2012
During 1-2 March, explosions from Santiaguito lavadome produces ash plumes that rose 800 m above the crater and drifted 20 km W and SW. Block avalanches descended the SW flank, and lava flows were active on the S, SW, and NE flanks. Based on analyses of satellite imagery, the Washington VAAC reported that during 3-4 March ash plumes drifted SW. On 5 March an ash plume rose to an altitude of 4.6 km (15,000 ft) a.s.l. ... [more]
Tuesday, Feb 28, 2012
Santiaguito volcano in Guatemala has been displaying a slightly elevated state of activity in recent days. INSIVUMEH reports moderate explosions about every 15 minutes that eject plumes of gray ash tot 600 and 800 meters above the crater, and producing an ash plume drifting to the west and SW until dissipating at about 15 km distance. ... [more]
Saturday, Feb 18, 2012
Moderate explosions continue producing small gray ash columns, and ashfall in the areas of the nearby farms to the west. Weak avalanches occur from the front of the small active lava flow on the southeast side of Santiaguito. [more]
Saturday, Feb 18, 2012
Moderate explosions producing small gray ash columns, reported ashfall in the areas of the nearby farms to the west. Weak avalanches from the front of the small active lava flow on the southeast side of Santiaguito. (Source: INSIVUMEH) [more]

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