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Planchón-Peteroa Ash Reaches Malargüe Area as Yellow Alert Holds

Strong high-altitude winds dispersed fine ash over long distances, with scientists describing behavior that matches past elevated phases without signs of an imminent major eruption.

Overview

  • Officials confirmed an ash cloud reached Bardas Blancas and rural sectors of Malargüe, with reports of a sulfur smell and reduced visibility.
  • Recent pulses generated plumes of roughly 1,100 meters above the crater, and current assessments indicate impacts remain near the complex without risk to major urban areas.
  • The technical yellow alert remains in place under Segemar’s oversight, with biweekly reassessments and continuous monitoring alongside Chile’s OVDAS.
  • VAAC satellite imagery, ground cameras and seismographs corroborated the emissions, and experts say stronger high-altitude winds carried fine particles more than 100 kilometers in some cases.
  • Health and safety advisories urge residents to limit outdoor activity, use masks or damp cloths, protect eyes and water supplies, and safeguard livestock and crops from ash exposure.