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Santiaguito volcan

Mise à jour: 29 sept.. 2022 04:06 GMT -
Stratovolcano 3772 m (12,375 ft)
Guatemala, 14.76°N / -91.55°W
Condition actuelle: en éruption (4 sur 5)
Last update: 10 août 2022 (Smithsonian / USGS Weekly Volcanic Activity Report)

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.

Montrer carte interactive
Style éruptif tipique: Dominantly explosive, formation of lava domes
Eruptions du volcan Santiaguito: 1902 (catastrophic Plinian eruption of Santa Maria), 1903, 1922-ongoing (Santiaguito dome complex)

Derniers séismes proches

HeureMag. / ProfondeurDistance/Lieu
mardi, 27 septembre 2022 GMT (1 séisme)
26 sept. 2022 18:33 (GMT -6) (27 sept.. 2022 00:33 GMT)
4.5

53 km
130 km (81 mi)
Océan Pacifique Nord, 59 km au sud-ouest de Tapachula, Chiapas, Mexique
dimanche, 25 septembre 2022 GMT (2 séismes)
25 sept. 2022 05:38 (GMT -6) (25 sept.. 2022 11:38 GMT)
4.2

56 km
181 km (112 mi)
Océan Pacifique Nord, 57 km au sud-ouest de Mapastepec, Chiapas, Mexique
24 sept. 2022 19:29 (GMT -6) (25 sept.. 2022 01:29 GMT)
4.4

41 km
224 km (139 mi)
Océan Pacifique Nord, 99 km au sud-ouest de Mapastepec, Chiapas, Mexique

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

Santiaguito Photos




See also: Sentinel hub | Landsat 8 | NASA FIRMS

Voyages au volcan Santiaguito

Guatemala (Amérique centrale)
Les Volcans Sacrés des Terres Mayas
15-jours Voyage d'étude et expédition sur les volcans actifs du Guatemala
15 jours / 14 nuits - Modérée
Prix à partir de 2190 EUR
pas de groupe programmé pour le moment
Guatemala (Amérique centrale)
Les Volcans Sacrés des Terres Mayas
15-jours Voyage d'étude et expédition sur les volcans actifs du Guatemala
15 jours / 14 nuits - Modérée
Prix à partir de 2190 EUR
29 oct. - 5 nov. 2022
Santa Maria volcano satellite image (c) Google Earth View
Santa Maria volcano satellite image (c) Google Earth View
mer., 10 août 2022, 14:00

Santa Maria volcano (Southwestern Guatemala) - Smithsonian / USGS Weekly Volcanic Activity Report for 3 August-9 August 2022 (Continuing Activity)

INSIVUMEH reported that the eruption at Santa María's Santiaguito lava-dome complex continued during 2-9 August. Lava flows continued to advance in the San Isidro and El Tambor drainages on the W and SW flanks and were as long as 3.7 km by 5 August. Block avalanches from the W part of Caliente cone, and from both the ends and sides of the flows descended the S, SW, and W flanks. ... Read all
jeu., 4 août 2022, 10:00

Santa Maria volcano (Southwestern Guatemala) - Smithsonian / USGS Weekly Volcanic Activity Report for 3 August-9 August 2022 (Continuing Activity)

INSIVUMEH reported that the eruption at Santa María's Santiaguito lava-dome complex continued during 2-9 August. Lava flows continued to advance in the San Isidro and El Tambor drainages on the W and SW flanks and were as long as 3.7 km by 5 August. Block avalanches from the W part of Caliente cone, and from both the ends and sides of the flows descended the S, SW, and W flanks. ... Read all
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