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Santiaguito volcano

Updated: Feb 29, 2024 22:29 GMT -
Stratovolcano 3772 m (12,375 ft)
Guatemala, 14.76°N / -91.55°W
Current status: erupting (4 out of 5)
Last update: 29 Feb 2024 (Volcanic Ash Advisory)
The lava dome complex of Santiaguito volcano seen from Santa Maria's summit
The lava dome complex of Santiaguito volcano seen from Santa Maria's summit

Santiaguito is the name of the dome complex that grew inside the collapse scar left by the catastrophic eruption and partial collapse of Santa María stratovolcano in 1902. Its currently active dome is called Caliente (the "hot one").
Symmetrical, forest-covered Santa María volcano is one of the most prominent of a chain of large volcanoes that rises dramatically above the Pacific coastal plain of Guatemala. Santa Maria erupted catastrophically in 1902 destroying its former summit.
Santa Maria is a popular excursion destination and the summit offers spectacular views onto erupting Santiaguito.

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Typical eruption style: Dominantly explosive, formation of lava domes
Santiaguito volcano eruptions: 1902 (catastrophic Plinian eruption of Santa Maria), 1903, 1922-ongoing (Santiaguito dome complex)

Latest nearby earthquakes

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Background

The 3772-m-high stratovolcano has a sharp-topped, conical profile that is cut on the SW flank by a large, 1.5-km-wide crater. The oval-shaped crater extends from just below the summit of Volcán Santa María to the lower flank and was formed during a catastrophic eruption in 1902. The renowned plinian eruption of 1902 that devastated much of SW Guatemala followed a long repose period after construction of the large basaltic-andesite stratovolcano. The massive dacitic Santiaguito lava-dome complex has been growing at the base of the 1902 crater since 1922. Compound dome growth at Santiaguito has occurred episodically from four westward-younging vents, the most recent of which is Caliente. Dome growth has been accompanied by almost continuous minor explosions, with periodic lava extrusion, larger explosions, pyroclastic flows, and lahars.
Source: GVP

Santiaguito Photos




See also: Sentinel hub | Landsat 8 | NASA FIRMS

Santiaguito volcano tours

11-day volcano tour to Pacaya and Fuego, Guatemala
8-12 days - Moderate to Challenging
Price $ 3490
no scheduled dates at present
Santa Maria volcano satellite image (c) Google Earth View
Santa Maria volcano satellite image (c) Google Earth View
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