Isluga Volcano | John Seach



19.15 S, 68.83 W
summit elevation 5050 m

Isluga Volcano is located in northern Chile 7 km west of Bolivia border. The summit contains a 400 m wide crater. In 1878 lava flows destroyed towns.

The volcano is located in Isluga National Park which covers 175,000 hectares.

Volcán Isluga is a large elongated volcanic complex, which currently shows fumarolic activity. Recent phreatomagmatic eruptions covered the area around the active crater with surge deposits. Holocene flows cover the northernmost ridge of the volcano.

An older glaciated dacite flow from the northwest side of the volcano has been dated at at 96,000 years. Lavas from Isluga overlie rocks from a dissected volcano (Quimsachatas) to the north and northeast, which erupted 566,000 years ago.

Eruptions of Isluga Volcano
Major eruptions occurred in 1868, 1869, 1877, and 1878. Minor eruptions occurred in 1863 and 1885. Sulphur is deposited at the volcano base. Some activity was reported in 1913.

Futher reading
Céspedes, L., Clavero, J. and Cayupi, J., 2004. Hazard management at Isluga volcano, Northern Chile: preliminary results. IAVCEI General Assembly, Pucón, Chile.

Isluga Volcano Eruptions

1960?, 1913, 1885, 1878, 1877, 1869, 1868, 1863.