Tungurahua Volcano and the Ecuador UNESCO Global Geopark
Tungurahua is Ecuador's iconic Andean stratovolcano. UNESCO added the surrounding region to its Global Geoparks Network in 2025, recognising its volcanic landscapes, indigenous Quichua heritage and Pastaza River cloud forests.
The Tungurahua volcano is one of South America’s most striking active stratovolcanoes, rising 5,023 metres above the Ecuadorian Andes in Tungurahua Province. Its glaciated, snow-capped cone dominates the upper Pastaza valley and looks down on the popular resort town of Banos de Agua Santa. In April 2025 UNESCO designated the surrounding region as a new UNESCO Global Geopark — Ecuador’s third — adding the Tungurahua volcano area to a worldwide network of territories with internationally significant geological heritage.
The Tungurahua volcano sits on the western edge of the South American Plate, where the oceanic Nazca Plate is being subducted at roughly 5-7 centimetres per year. That subduction has built the entire Andean volcanic arc, and the Tungurahua volcano is part of its Northern Volcanic Zone.
Location and Geographic Setting
The Tungurahua volcano lies about 140 kilometres south of the Ecuadorian capital Quito, on the eastern slopes of the Andes where the cordillera drops toward the Amazon basin. The volcano forms part of the Sangay National Park, itself a UNESCO World Heritage Site (inscribed 1983). The Pastaza River, a major Amazon tributary that feeds the Maranon, cuts a deep gorge along the northern flank of the cone.
The Andean Setting
The Andes are the longest continental mountain chain on Earth, stretching about 7,000 kilometres along South America’s western edge. They are divided into three segments — Northern, Central and Southern Andes — each with its own active volcanic zone separated by gaps where the subduction angle becomes too shallow to generate magma. The Tungurahua volcano belongs to the Northern Volcanic Zone, alongside Cotopaxi, Chimborazo, Pichincha and Reventador.
Why the Andes Are Volcanic
The Nazca Plate dives beneath the South American Plate, dragging seawater and sediments deep into the mantle. Water lowers the melting point of mantle rock and triggers the production of magma, which then rises through the overlying crust and erupts at the surface to build stratovolcanoes. This same process makes the entire Pacific rim — the Pacific Ring of Fire — the most volcanically active belt on Earth, with roughly 75 per cent of the world’s active volcanoes.
The Tungurahua Volcano in Detail
The Tungurahua volcano is a classic stratovolcano — a steep, conical edifice built up by alternating layers of viscous lava, ash and pyroclastic debris. Its summit is permanently snow-capped, and the glaciers feed the headwaters of the Chambo and Puela rivers. In the Quichua language, the name Tungurahua combines tungur (throat) and rahua (fire), giving “throat of fire” — an apt description for a volcano whose summit crater regularly glows red at night during eruptive phases.
Recent Eruptive History
After 80 years of repose, the Tungurahua volcano reawakened in October 1999 and entered a long-running eruptive period. Major escalations occurred in 2006, 2008, 2010, 2011, 2014 and 2016, producing ash columns several kilometres high, pyroclastic flows down the western flank, and lahars (volcanic mudflows) that swept down the Vazcun and Juive valleys. The 2006 eruption killed at least six people in the village of Palitahua and displaced thousands.
The volcano is now considered to be in a quieter, monitoring phase, but the Instituto Geofisico of the Escuela Politecnica Nacional in Quito maintains continuous seismic, GPS and gas surveillance.
Hazard Zones and Lahars
The biggest civil-protection challenge around the Tungurahua volcano is not lava (most flows stop within a few kilometres of the vent) but lahars — sudden flows of meltwater mixed with ash and debris that can race down narrow valleys at 50 kilometres per hour. Banos de Agua Santa, with around 20,000 residents and a thriving tourism economy, sits directly in a lahar-hazard corridor and has a fully rehearsed evacuation plan.
The UNESCO Global Geoparks Programme
A UNESCO Global Geopark is a single, unified geographical area with sites and landscapes of international geological significance managed under a holistic concept of protection, education and sustainable development. The label was created in 2015 and complements the older World Heritage and Biosphere Reserve programmes.
Three Pillars of a Global Geopark
- Geoconservation: identifying and protecting geological heritage of international value
- Education: explaining Earth science to the public through trails, museums and school links
- Sustainable Development: using geotourism to support local livelihoods without damaging the geology
UNESCO Global Geoparks are revalidated every four years and can lose the label if standards slip.
Ecuador’s 2025 Designation
UNESCO’s Executive Board added the Tungurahua-Chimborazo geological territory to the Global Geoparks Network in 2025 — Ecuador’s third such designation after Imbabura (2019) and Napo Sumaco (2024). The new geopark covers volcanic landforms, glacial features on Chimborazo (Earth’s farthest point from the planet’s centre), and indigenous Quichua cultural sites. There are now more than 200 UNESCO Global Geoparks across 50 countries.
India and Geoparks
India does not yet have any UNESCO Global Geopark, despite a tentative list maintained by the Geological Survey of India that includes Lonar Lake in Maharashtra, the Salt Range in Himachal, Siwalik fossil parks, and the volcanic Deccan Traps near Saint Mary’s Islands in Karnataka. A National Geoheritage Bill has been drafted but not yet passed. Following Ecuador’s Tungurahua designation, India’s Ministry of Mines has reaffirmed its intent to nominate at least one geopark by 2028.
Why It Matters for UPSC
The Tungurahua volcano case touches multiple UPSC themes — Andean tectonics, the Ring of Fire, hazard management, indigenous heritage, and the multilateral architecture of UNESCO’s geoheritage programme. It is also a useful comparator for India’s own volcanic legacy (Deccan Traps, Barren Island in the Andaman Sea).
Comparison with Indian Volcanic Landscapes
| Feature | Tungurahua (Ecuador) | Barren Island (India) | Deccan Traps (India) |
|---|---|---|---|
| Type | Active stratovolcano | Only active volcano in India | Extinct flood basalts |
| Age | Less than 14,000 years | Holocene, last erupted 2022 | 66 million years |
| Setting | Subduction (Nazca-South American) | Subduction (Indian-Burma) | Reunion hotspot |
| UNESCO status | Global Geopark (2025) | None | Tentative list |
Indigenous Communities and the Pastaza Watershed
The Tungurahua volcano region is home to Kichwa (Quichua) and Salasaca communities. Their traditional knowledge of weather, soil and water guides reforestation projects on the volcano’s lower slopes. The Pastaza watershed downstream supports the Achuar and Shuar peoples of Ecuadorian Amazonia. The new UNESCO Global Geopark explicitly incorporates indigenous co-management — a model the Indian Geological Survey is studying for its own future geopark proposals.
Geotourism and Local Economy
Banos de Agua Santa is the gateway to the Tungurahua volcano and depends almost entirely on tourism — hot springs, waterfall hikes, the Casa del Arbol swing facing the volcano, and rafting on the Pastaza. The geopark designation is expected to boost overnight stays by 15-20 per cent over five years while channelling park fees into geoheritage protection.
Frequently Asked Questions
Where is the Tungurahua volcano located?
The Tungurahua volcano is in central Ecuador, about 140 km south of Quito, in Tungurahua Province on the eastern slope of the Andes. It rises 5,023 metres above sea level and sits within Sangay National Park.
Is the Tungurahua volcano still active?
Yes. After 80 years of quiet the Tungurahua volcano reawakened in 1999 and was highly active until 2016. It is currently in a quieter monitoring phase but is not considered extinct.
Why did UNESCO add the Tungurahua region to its Global Geoparks Network in 2025?
UNESCO recognised the region’s combination of active Andean volcanism, glacial landforms on neighbouring Chimborazo, indigenous Quichua heritage, and well-developed geotourism infrastructure as internationally significant.
What is the difference between a UNESCO Global Geopark and a World Heritage Site?
A World Heritage Site protects outstanding universal value at a defined property. A Global Geopark is a larger living territory managed for geoconservation, education and sustainable development together — and it must be revalidated every four years.
How many UNESCO Global Geoparks does India have?
India currently has zero UNESCO Global Geoparks, although the Geological Survey of India maintains a tentative list including Lonar Lake, the Salt Range, and Saint Mary’s Islands.
What is a stratovolcano?
A stratovolcano is a steep-sided, conical volcano built up by many layers of viscous lava and pyroclastic material. They tend to produce explosive eruptions because their magma is high in silica and dissolved gas. The Tungurahua volcano, Mount Fuji and Vesuvius are classic stratovolcanoes.
What is the meaning of the name Tungurahua?
Tungurahua is a Quichua word combining tungur (throat) and rahua (fire), giving the meaning u0022throat of fireu0022 — a reference to the lava and glowing tephra often visible at its summit.
What is the Pacific Ring of Fire?
The Pacific Ring of Fire is the horseshoe-shaped belt of volcanoes and earthquake zones around the rim of the Pacific Ocean. About 75 per cent of the world’s active volcanoes — including the Tungurahua volcano and India’s Barren Island — lie along it.