|
Cliquez ici pour recommander cette page à un ami
|
Dernières actualités:jeudi, mai 24, 2012
INSIVUMEH reported that on 21 May a lahar traveled down Santa María's Rio Nima II drainage, carrying tree branches and 40-cm-wide lava blocks.
... [details] jeudi, mai 17, 2012
During 13-14 May incandescent explosions from Santa María's Caliente dome produced ash plumes that rose 700 m above the crater and drifted WSW. Avalan...
[details]
Santa María / Santiaguito volcanstratovolcan 3772 m (12,375 ft)
Guatemala, 14.76°N / -91.55°W Condition actuelle: en éruption (4 sur 5) Santa María / Santiaguito webcams / live data
Dernière mise à jour: 24 mai 2012 (moderate ash explosions, ash fall and occasional lahars)
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 Santa María / Santiaguito photos du volcan 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: |