• The Weekly Volcanic Activity Report: February 3 – 9, 2021

    New activity/unrest was reported for 5 volcanoes from February 3 to 9, 2021. During the same period, ongoing activity was reported for 15 volcanoes. New activity/unrest: Etna, Sicily (Italy) | Merapi, Central Java (Indonesia) | Raung, Eastern Java (Indonesia) |…

  • Large lahar at Semeru volcano, Indonesia

    A large lahar flow formed on the slopes of Mount Semeru volcano in East Java, Indonesia during heavy rains on February 8, 2021. The flow took place at around 08:39 UTC (15:39 WIB), sweeping away a car. Fortunately, the driver managed to get out of the vehicle and…

  • Renewed unrest at Semisopochnoi, alerts raised, Alaska

    High-resolution satellite imagery acquired on February 6, 2021, showed a small ash deposit extending less than 3 km (1.8 miles) to the north from North Cerebus Crater on Semisopochnoi Island, Alaska, U.S. Steam emissions obscured views into the crater, the Alaska…

  • Strombolian activity at Etna volcano, Italy

    Analysis of the images of the INGV-OE surveillance cameras and the observations made by INGV staff during a survey carried out at Etna's summit area on February 5, shows that Strombolian activity continues in the Southeast Crater with varying frequency and…