Santiaguito volcano

Updated: Jul 6, 2022 10:43 GMT - Refresh
Stratovolcano 3772 m (12,375 ft)
Guatemala, 14.76°N / -91.55°W
Current status: erupting (4 out of 5)
Last update: 24 Jun 2022 (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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Typical eruption style: Dominantly explosive, formation of lava domes
Santiaguito volcano eruptions: 1902 (catastrophic Plinian eruption of Santa Maria), 1903, 1922-ongoing (Santiaguito dome complex)
Lastest nearby earthquakes:
TimeMag. / DepthDistance/Location
Sunday, June 26, 2022 GMT (1 quake)
Jun 26, 2022 1:01 pm (GMT -6) (Jun 26, 2022 19:01 GMT)
3.9

28 km
262 km (163 mi)
North Pacific Ocean, 150 km south of Tonala, Chiapas, Mexico
Wednesday, June 22, 2022 GMT (1 quake)
Jun 22, 2022 11:05 am (GMT -6) (Jun 22, 2022 17:05 GMT)
4.1

16 km
292 km (181 mi)
North Pacific Ocean, 172 km southeast of Salina Cruz, Oaxaca, Mexico

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.
Source: GVP

Santiaguito Photos

Santiaguito's Caliente lava dome consists of viscous, mostly solidified lava plugging the circular vent. (Photo: Tom Pfeiffer)
Santiaguito's Caliente lava dome consists of viscous, mostly solidified lava plugging the circular vent. (Photo: Tom Pfeiffer)
Eruption from Santiaguito lava dome (Photo: Yashmin Chebli)
Eruption from Santiaguito lava dome (Photo: Yashmin Chebli)
Eruption from Santiaguito volcano (Photo: Tom Pfeiffer)
Eruption from Santiaguito volcano (Photo: Tom Pfeiffer)
The ash plume has reached more than 1 km height. (Photo: Tom Pfeiffer)
The ash plume has reached more than 1 km height. (Photo: Tom Pfeiffer)
 



Santiaguito volcano tours:
Volcanoes in the land of the Maya (15-day study trip and expedition to Guatemala's volcanoes)
Guatemala Volcano Special (8-day volcano tour to Pacaya and Fuego, Guatemala)

See also: Sentinel hub | Landsat 8 | NASA FIRMS
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