About Anallajsi, Nevado
Anallajsi, Nevado is a stratovolcano rising to 5,750 meters (18,866 feet) in Bolivia's South America Volcanic Regions. No historical eruptions have been recorded, though the volcano is classified based on geological evidence of past activity.
Geography & Climate
Anallajsi, Nevado is located in Bolivia, within the Central Andean Volcanic Arc of the broader South America Volcanic Regions. Situated at 17.92° S, 68.92° W in the Southern Hemisphere, the volcano lies within a tropical climate zone. At 5,750 meters above sea level, Anallajsi, Nevado reaches well into the permanent snow and ice zone. Glaciers and snowpack on the upper slopes create the potential for lahars — destructive volcanic mudflows — during eruptions, as heat rapidly melts ice and snow. The volcanic landform is characterized as a composite, which describes the physical shape and structure of the volcanic edifice as observed from the surface.
GVP Reference Summary
The International Association of Volcanology and Chemistry of the Earth's Interior data sheets (1973) listed Nevado Anallajsi volcano in Bolivia north of Sajama volcano as being active during the past 2000 years, but de Silva and Francis (1990) noted no evidence from analysis of satellite images for Holocene activity in this area. The andesitic-to-dacitic compound volcano overlies an ignimbrite plateau. Younger basaltic lava flows were erupted from a north-flank vent, but Woerner (2006 pers. comm.) indicated there was certainly no Holocene activity at Anallajsi.
— Smithsonian Institution, Global Volcanism Program
0 Recorded Eruptions
No eruption records available for Anallajsi, Nevado.
Real-Time Data
USGS Alert Level
Thermal Anomalies
Frequently Asked Questions About Anallajsi, Nevado
Is Anallajsi, Nevado an active volcano?+
Anallajsi, Nevado is not currently classified as active. Its activity evidence is listed as "unknown." No recorded eruptions have been documented. However, no volcano is ever considered permanently extinct.
How high is Anallajsi, Nevado?+
Anallajsi, Nevado has a summit elevation of 5,750 meters (18,866 feet) above sea level. At 5,750 meters, it stands taller than Mount Rainier (4,392m) and is among the world's major volcanic peaks.
What type of volcano is Anallajsi, Nevado?+
Anallajsi, Nevado is classified as a Stratovolcano. Stratovolcanoes (also called composite volcanoes) are steep, conical volcanoes built up by many layers of hardened lava, tephra, and volcanic ash. They are among the most common and dangerous types, known for explosive eruptions.
Where is Anallajsi, Nevado located?+
Anallajsi, Nevado is located in Bolivia, in the South America Volcanic Regions. More specifically, it lies within the Central Andean Volcanic Arc. Its exact coordinates are -17.920° latitude, -68.920° longitude.
Is it safe to visit Anallajsi, Nevado?+
Anallajsi, Nevado can generally be visited, but as with any volcano, visitors should check local conditions and any advisory notices before traveling. Bolivia may have specific regulations for accessing volcanic areas. Guided tours are often the safest and most informative way to experience a volcano.
