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Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Santa Maria
Santa María is one of the most active volcanoes in Guatemala. Its morphology changed drastically in 1902 when a catastrophic eruption formed a 1-km-wide crater. The large Santiaguito lava-dome complex (center) has been growing at the base of the 1902 crater since 1922. Lava flows can be seen down the flank. Dome growth is accompanied by frequent minor explosions, along with periodic lava extrusion, larger explosions, pyroclastic flows, and lahars. Photo by Bill Rose, 1980 (Michigan Technological University).
Volcano Number:
342030
Volcano Name:
Santa Maria
Country:
Guatemala
Volcano Type:
Stratovolcano
Last Eruption:
2025 CE
Elevation:
3745m
Tectonic Setting:
Subduction zone / Continental crust (> 25 km)
Pop. within 5km:
8675
Pop. within 10km:
119462
Pop. within 30km:
1259600
Pop. within 100km:
6197420
Latitude:
14.757
Longitude:
-91.552
Details
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Symmetrical, forest-covered Santa María volcano is part of a chain of large stratovolcanoes that rise above the Pacific coastal plain of Guatemala. The sharp-topped, conical profile is cut on the SW flank by a 1.5-km-wide crater. The oval-shaped crater extends from just below the summit 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 vents, with activity progressing E towards the most recent, Caliente. Dome growth has been accompanied by almost continuous minor explosions, with periodic lava extrusion, larger explosions, pyroclastic flows, and lahars.
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Eruption Data from the Global Volcanism Program of the Smithsonian Institution
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Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.
Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal
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Data from the SESAR Database
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Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.
Data from UNAVCO
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Data from USIEI
Sorry. This volcano is not covered by any USIEI projects
Data from IRIS FDSNWS
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