More than 7,000 troops have been deployed in the vicinity of the volcano, which is about 85 kilometers southeast of Mexico City. Evacuation routes and emergency shelter designations were revised on Monday. In-person classes were canceled in 40 cities and towns in the state of Puebla.
The volcano has been emitting ash, steam and gas for days. However, experts assumed that volcanic activity would be limited, as reported by the disaster prevention authority. The alert level remained at “yellow phase 3” on Monday, one step away from the red alert level.
Popocatepetl is one of the most active volcanoes in Mexico. It is on the border of the states of Mexico, Puebla and Morelos and is over 5,400 meters high. There has been a twelve kilometer exclusion zone around the volcano for years. About 25 million people live within a radius of 100 kilometers.