IntroductionThe 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.
Santa María / Santiaguito Photos
Vue sur le complexe des domes de lave du Santiaguito depuis le sommet du Santa Maria (Photo: Tom Pfeiffer)
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