Latest news from Santa Maria volcano:
Wednesday, Jul 23, 2014
No explosions were observed since yesterday, but the lava flow at the eastern rim of the Caliente dome remains active, producing rockfalls into the Nima 1 river canyon. Strong degassing is occurring from the dome. [more]
Wednesday, Jul 16, 2014
Activity seems to have been a bit higher today, as the report of INSIVUMEH's volcano observatory suggests. A moderate explosion was observed this morning, causing light ash fall towards the SW in the area of Finca El Rosario Palajunoj. The active lava flow from the eastern rim of the Caliente dome continues to advance slowly within the 9 May collapse scar. ... [more]
Santiaguito volcanoSantiaguito 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.
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.
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