Misti Volcano
Arequipa
Misti Volcano is an active stratovolcano located in the southern Peruvian Andes, rising prominently above the city of Arequipa. It reaches an elevation of 5,822 meters (19,101 feet) and features a steep conical shape with two nested summit craters. The inner crater contains an active lava dome emitting volcanic gases, while the upper slopes are mostly barren with snow that does not persist year-round. The volcano formed through four major eruptive stages, each ending with summit collapses that shaped its current profile. Historically, Misti is part of a volcanic group with Chachani and Pichu Pichu, and its eruptions have significantly impacted the surrounding landscape over the past 50,000 years. Despite its majestic appearance, Misti is considered one of the most dangerous volcanoes due to its proximity-only 12 kilometers-to the populous city of Arequipa, whose suburbs extend onto its slopes. The volcano holds deep cultural significance, having been revered and feared by the Incas who performed human sacrifices on its summit during the 15th century to appease its power. Today, Misti is monitored by Peruvian geological institutes, and it remains a powerful symbol of Arequipa, visible from the Pacific Ocean and integral to the region’s identity and history.
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Tip: The best time to visit Misti Volcano is during the dry season, typically from May to September, when weather conditions are more favorable for trekking. Visitors are advised to purchase guided tours or permits in advance due to the challenging altitude and terrain. It is recommended to acclimatize in Arequipa before attempting the ascent. Although Misti is active, monitoring by geological institutes ensures visitor safety, but hikers should stay informed about volcanic activity updates. Discounts or special rates may be available for students or groups through official tour operators.
Interesting facts
- •Misti is part of a volcanic group including Chachani and Pichu Pichu, all visible from Arequipa.
- •The Inca performed capacocha human sacrifices on Misti’s summit during the 15th century, with the largest known Inca sacrifice mummies found there.
- •Despite its snow-capped summit, Misti does not have glaciers due to the dry climate.
- •Misti's last significant eruptions occurred around 1440–1470 AD, with increased gas emissions mistaken for eruptions in recent times.
- •The city of Arequipa’s white volcanic stone buildings are constructed from sillar, a rock formed from Misti’s volcanic deposits.
History
Misti Volcano has evolved through four main eruptive stages, each culminating in summit collapses that formed its current crater structure.
The volcano has been active for over 50,000 years, with significant explosive eruptions occurring approximately 2,000 years ago and between 1440 and 1470 AD.
During the latter period, the Incas performed human sacrifices at the summit to placate the volcano's activity, and mummies from these rituals represent the largest known Inca human sacrifice.
The city of Arequipa was founded in 1540 at the volcano's base, and over centuries, the volcano has been both a natural threat and a cultural symbol for the region.
Scientific monitoring began in earnest only in the late 20th century, with modern observatories tracking its activity to mitigate risks to the growing urban population.
Place Guide
Summit Craters
Misti features two nested summit craters; the inner crater contains an active lava dome emitting volcanic gases, a rare feature that underscores the volcano's ongoing activity.
Inca Archaeological Site15th century
Near the summit, archaeologists discovered Inca human sacrifice remains and ceremonial stone structures, providing unique insight into ancient Andean religious practices.
Volcanic Slopes and Vegetation
The upper slopes of Misti are barren, while lower elevations support scrub and bushy vegetation, reflecting the harsh volcanic environment and Andean climate.
