Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Atacazo
Atacazo stratovolcano, located 20 km south of Quito, is seen here from the west along the road to Guayaquil. The volcano contains a summit caldera that is partially filled by lava domes of Holocene age. Lava domes are also found on the SE flank. The only dated Holocene eruption took place about 2400 years ago, forming the Ninahuilca lava domes, the peaks below the center horizon. Photo by John Ewert, 1992 (U.S. Geological Survey).
Volcano Number:352021
Volcano Name:Atacazo
Country:Ecuador
Volcano Type:Stratovolcano
Last Eruption:-320
Elevation:4463m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:449
Pop. within 10km:212988
Pop. within 30km:1837303
Pop. within 100km:3769593
Latitude:-0.353
Longitude:-78.617



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
352021 Atacazo 11450 Confirmed Eruption 4 P La Cocha II dome N3 tephra Radiocarbon (uncorrected) -6910
352021 Atacazo 11451 Confirmed Eruption 4 P Arenal II dome N4 tephra Radiocarbon (uncorrected) -3490
352021 Atacazo 11452 Confirmed Eruption 5 Ninahuilca Chico I dome N5 tephra Radiocarbon (uncorrected) -2490
352021 Atacazo 11453 Confirmed Eruption 5 Ninahuilca Chico II dome N6 tephra Radiocarbon (uncorrected) -320
Emissions Data from the Global Volcanism Program of the Smithsonian Institution No emissions data found for this volcano.


Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.