• Dukono climbing access permanently closed after 3 climbers found dead, Indonesia

    ByTeo Blašković

    Indonesia’s North Halmahera government permanently closed climbing access to Mount Dukono after 3 climbers were found dead following the May 8, 2026, eruption on Halmahera Island, North Maluku. BNPB said the area had already been under a total climbing closure since April 17, before the closure was reinforced through a May 8 Regent decision barring operators, managers, and climbing-service providers from issuing permits.

  • Pyroclastic density currents from Mayon volcano reach 4 km (2.5 miles), Philippines

    ByReet Kaur

    A series of collapse-fed pyroclastic density currents descended the Mi-isi Gully at Mayon volcano, Philippines, on February 9, 2026, with the farthest runout reaching 4 km (2.5 miles) from the summit crater. The activity peaked between 10:35–11:37 local time (LT), culminating in a seven-minute event at 10:59 LT that generated ash clouds exceeding 2 km (about 6 560 feet) in height and causing ashfall across parts of Camalig and Guinobatan, Albay, during rainy conditions.

  • Rare audio of approaching pyroclastic flow from Mount Semeru’s November 19 eruption, East Java

    ByTeo Blašković

    A major eruption at Mount Semeru, East Java, Indonesia, on November 19, 2025, produced large pyroclastic flows descending the southern slopes. One of them was captured on video, allowing both the sight and sound of the approaching flow to be recorded. The video shows a large pyroclastic density current moving downslope at high speed, generating…

  • Evacuations ordered after powerful eruption at Semeru volcano sends ash to 17.9 km (59 000 feet), Indonesia

    ByTeo Blašković

    Indonesia’s Geological Agency raised the alert level for Semeru volcano to the highest (Level IV) following a major eruption on November 19, 2025, that produced an ash column up to 17.9 km (59 000 feet) above sea level. Authorities ordered evacuations of at least 300 residents from nearby villages and expanded exclusion zones up to 8 km (5 miles) from the crater and along the Besuk Kobokan valley. No casualties have been reported so far.

  • Partial collapse at Mount Merapi sends lava down slopes, Indonesia

    ByTeo Blašković

    A partial collapse occurred at Mount Merapi volcano, Central Java Province, Indonesia, on November 10, 2025, producing lava flows on its slopes. The event follows continuous volcanic activity observed in recent days, including a pyroclastic flow that traveled about 1 500 m (4 921 feet) southwest at 15:19 LT (08:19 UTC) on November 9, lasting 188.32 seconds. The volcano remains at Alert Level III (Siaga), and residents are advised to follow official safety recommendations.

  • Lahar from Mount Semeru traps truck near Gladak Perak, Lumajang, Indonesia

    ByTeo Blašković

    A secondary lahar flow originating from remobilized pyroclastic and tephra deposits on the southern flank of Mount Semeru, Indonesia, occurred on October 21, 2025, trapping a truck near Gladak Perak Bridge in Lumajang Regency, East Java. The rain-induced lahar, classified as a cold, non-eruptive sediment-water flow, moved through the Besuk Kobokan drainage, carrying a dense slurry of volcanic debris and runoff.