• Orange alert in effect for Puracé volcano after renewed eruptive activity, Colombia

    ByTeo Blašković

    Volcanic activity at Puracé, Colombia, intensified on November 30, 2025, prompting authorities to raise the alert level to Orange for the Los Coconucos volcanic chain in Cauca Department on December 1. Since then, continuous tremor, long-period seismicity, and sustained gas-and-ash emissions have been recorded, with columns exceeding 700 m (2 300 feet) above the summit (4 650 m / 15 260 a.s.l.) and occasional ashfall reported in nearby communities.

  • Increased rock fracturing at Colombia’s Nevado del Ruiz volcano

    ByTW

    A notable increase in seismic activity associated with rock fracturing started at Colombia’s Nevado del Ruiz volcano on January 3, 2024. The alert status remains at Yellow, indicating unstable behavior and potential for quick escalation. This volcano is known for producing the deadliest lahar in history.

  • Increased seismic activity and degassing at Colombia’s Puracé volcano

    ByTeo Blašković

    On October 25, 2023, Colombia’s Puracé Volcano experienced a noticeable increase in seismic activity, with earthquakes reaching a maximum magnitude of 1.0. Located between 1 and 4 km (0.6 – 2.5 miles) in depth, these quakes coincided with higher degassing levels and persistent high CO2 values.

  • Seismic activity intensifies at Colombia’s Nevado del Huila volcano

    ByTW

    At 00:38 local time on October 21, 2023, Colombia’s Nevado del Huila volcano experienced a significant earthquake with a magnitude of 3.6 at a depth of 1 km (0.6 miles) below its Central Peak. From then until 08:00 local time, a total of 320 earthquakes were recorded, associated with rock fracturing inside the volcano.