The Nevados de Chillán volcanic complex, in the mountains of the Ñuble region, recorded at least seven eruptive pulses this Sunday, October 25. Emissions of gas and pyroclastic material (fragments of rock and ash expelled by a volcano) formed columns rising more than 800 meters above the crater.
T13 reported this based on a Special Volcanic Activity Report (REAV) from the National Geology and Mining Service (Sernageomin). According to the document, the highest-energy episode produced a column rising 1,740 meters above the crater.
Teams from the National Volcanic Monitoring Network detected the events through their monitoring systems. The emissions dispersed toward the southeast. Initially, the columns appeared grayish, then turned whitish as gaseous components predominated.
Sernageomin maintained the yellow technical alert for the complex. This level indicates that the volcano is showing activity above its usual behavior and that the service is monitoring it continuously to detect changes. The sources report no additional evacuation measures or new restrictions for nearby communities, nor do they indicate whether ash fell in populated areas.
The agency warned that the activity could recur. “Further episodes of similar or greater energy cannot be ruled out,” the service stated in its special report. The outlet El Periodista clarified that this warning does not amount to predicting that a more intense event will certainly occur.
Sernageomin shared the report on its X account (@sernageomincl), where it reported several eruptive pulses and confirmed that the alert level remains yellow.
The service will continue analyzing records from the complex. According to the sources, that assessment will determine whether the alert level should be changed in subsequent reports.
