Santa María / Santiaguito volcan

Stratovolcano 3772 m (12,375 ft)

Condition actuelle: en éruption (4 sur 5)
Last update: 18 Sep 2021 (Volcanic Ash Advisory)

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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Style éruptif tipique: Dominantly explosive, formation of lava domes
Eruptions du volcan Santa María / Santiaguito: 1902 (catastrophic Plinian eruption), 1903, 1922 (from SW flank: Santiaguito), 2002-ongoing

No recent earthquakes
HeureMag. / ProfondeurDistance/Lieu

Introduction

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

Santa María / Santiaguito Photos

Vue sur le complexe des domes de lave du Santiaguito depuis le sommet du Santa Maria (Photo: Tom Pfeiffer)
Vue sur le complexe des domes de lave du Santiaguito depuis le sommet du Santa Maria (Photo: Tom Pfeiffer)
Eruption du Santiaguito au pied du flanc éventré (collapse de l'éruption du 24 octobre 1902) du volcan Santa Maria - Guatemala (Photo: Yashmin Chebli)
Eruption du Santiaguito au pied du flanc éventré (collapse de l'éruption du 24 octobre 1902) du volcan Santa Maria - Guatemala (Photo: Yashmin Chebli)
Vue du sommet du volcan Santa Maria surplombant le Santiaguito avec son dôme Caliente incandescent - Guatemala (Photo: Yashmin Chebli)
Vue du sommet du volcan Santa Maria surplombant le Santiaguito avec son dôme Caliente incandescent - Guatemala (Photo: Yashmin Chebli)
 



Voyages au volcan Santa María / Santiaguito :
Les Volcans Sacrés des Terres Mayas (15-jours Voyage d'étude et expédition sur les volcans actifs du Guatemala)
Les Volcans Sacrés des Terres Mayas (15-jours Voyage d'étude et expédition sur les volcans actifs du Guatemala)

See also: Sentinel hub | Landsat 8
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